/////////////////////////////
/// Window APIs
/////////////////////////////

/// <reference no-default-lib="true" />
/// <reference types="gecko" />
/// <reference lib="es2023" />

interface ActivateMenuItemOptions {
    altKey?: boolean;
    button?: number;
    ctrlKey?: boolean;
    metaKey?: boolean;
    shiftKey?: boolean;
}

interface AddEventListenerOptions extends EventListenerOptions {
    once?: boolean;
    passive?: boolean;
    signal?: AbortSignal;
    wantUntrusted?: boolean;
}

interface AddonEventInit extends EventInit {
    id: string;
}

interface AddressErrors {
    addressLine?: string;
    city?: string;
    country?: string;
    dependentLocality?: string;
    organization?: string;
    phone?: string;
    postalCode?: string;
    recipient?: string;
    region?: string;
    regionCode?: string;
    sortingCode?: string;
}

interface AnalyserOptions extends AudioNodeOptions {
    fftSize?: number;
    maxDecibels?: number;
    minDecibels?: number;
    smoothingTimeConstant?: number;
}

interface AnimationEventInit extends EventInit {
    animationName?: string;
    elapsedTime?: number;
    pseudoElement?: string;
}

interface AnimationPlaybackEventInit extends EventInit {
    currentTime?: number | null;
    timelineTime?: number | null;
}

interface AnimationPropertyDetails {
    property: string;
    runningOnCompositor: boolean;
    values: AnimationPropertyValueDetails[];
    warning?: string;
}

interface AnimationPropertyValueDetails {
    composite: CompositeOperation;
    easing?: UTF8String;
    offset: number;
    value?: UTF8String;
}

interface AssignedNodesOptions {
    flatten?: boolean;
}

interface AttributeNameValue {
    name: UTF8String;
    value: UTF8String;
}

interface AudioBufferOptions {
    length: number;
    numberOfChannels?: number;
    sampleRate: number;
}

interface AudioBufferSourceOptions {
    buffer?: AudioBuffer | null;
    detune?: number;
    loop?: boolean;
    loopEnd?: number;
    loopStart?: number;
    playbackRate?: number;
}

interface AudioConfiguration {
    bitrate?: number;
    channels?: string;
    contentType: string;
    samplerate?: number;
}

interface AudioContextOptions {
    sampleRate?: number;
}

interface AudioNodeOptions {
    channelCount?: number;
    channelCountMode?: ChannelCountMode;
    channelInterpretation?: ChannelInterpretation;
}

interface AudioOutputOptions {
    deviceId?: string;
}

interface AudioSinkDebugInfo {
    audioEnded?: boolean;
    hasErrored?: boolean;
    isPlaying?: boolean;
    isStarted?: boolean;
    lastGoodPosition?: number;
    outputRate?: number;
    playbackComplete?: boolean;
    startTime?: number;
    written?: number;
}

interface AudioSinkWrapperDebugInfo {
    audioEnded?: boolean;
    audioSink?: AudioSinkDebugInfo;
    isPlaying?: boolean;
    isStarted?: boolean;
}

interface AudioTimestamp {
    contextTime?: number;
    performanceTime?: DOMHighResTimeStamp;
}

interface AudioWorkletNodeOptions extends AudioNodeOptions {
    numberOfInputs?: number;
    numberOfOutputs?: number;
    outputChannelCount?: number[];
    parameterData?: Record<string, number>;
    processorOptions?: any;
}

interface AuthenticationExtensionsClientInputs {
    appid?: string;
    credProps?: boolean;
    hmacCreateSecret?: boolean;
    minPinLength?: boolean;
}

interface AuthenticationExtensionsClientInputsJSON {
    appid?: string;
    credProps?: boolean;
    hmacCreateSecret?: boolean;
    minPinLength?: boolean;
}

interface AuthenticationExtensionsClientOutputs {
    appid?: boolean;
    credProps?: CredentialPropertiesOutput;
    hmacCreateSecret?: boolean;
}

interface AuthenticatorSelectionCriteria {
    authenticatorAttachment?: string;
    requireResidentKey?: boolean;
    residentKey?: string;
    userVerification?: string;
}

interface AutocompleteInfo {
    addressType?: string;
    canAutomaticallyPersist?: boolean;
    contactType?: string;
    credentialType?: string;
    fieldName?: string;
    section?: string;
}

interface AvcEncoderConfig {
    format?: AvcBitstreamFormat;
}

interface Base64URLDecodeOptions {
    padding: Base64URLDecodePadding;
}

interface Base64URLEncodeOptions {
    pad: boolean;
}

interface BiquadFilterOptions extends AudioNodeOptions {
    Q?: number;
    detune?: number;
    frequency?: number;
    gain?: number;
    type?: BiquadFilterType;
}

interface BlobEventInit extends EventInit {
    data: Blob;
}

interface BlobPropertyBag {
    endings?: EndingType;
    type?: string;
}

interface BlockParsingOptions {
    blockScriptCreated?: boolean;
}

interface BoxQuadOptions {
    box?: CSSBoxType;
    createFramesForSuppressedWhitespace?: boolean;
    relativeTo?: GeometryNode;
}

interface BufferRange {
    end?: number;
    start?: number;
}

interface CDMInformation {
    capabilities: string;
    clearlead: boolean;
    keySystemName: string;
}

interface CSSStyleSheetInit {
    baseURL?: UTF8String;
    disabled?: boolean;
    media?: MediaList | UTF8String;
}

interface CacheQueryOptions {
    ignoreMethod?: boolean;
    ignoreSearch?: boolean;
    ignoreVary?: boolean;
}

interface CanvasRenderingContext2DSettings {
    alpha?: boolean;
    colorSpace?: PredefinedColorSpace;
    desynchronized?: boolean;
    willReadFrequently?: boolean;
}

interface CaretStateChangedEventInit extends EventInit {
    boundingClientRect?: DOMRectReadOnly | null;
    caretVisible?: boolean;
    caretVisuallyVisible?: boolean;
    clientX?: number;
    clientY?: number;
    collapsed?: boolean;
    reason?: CaretChangedReason;
    selectedTextContent?: string;
    selectionEditable?: boolean;
    selectionVisible?: boolean;
}

interface ChannelMergerOptions extends AudioNodeOptions {
    numberOfInputs?: number;
}

interface ChannelSplitterOptions extends AudioNodeOptions {
    numberOfOutputs?: number;
}

interface CheckVisibilityOptions {
    checkOpacity?: boolean;
    checkVisibilityCSS?: boolean;
    contentVisibilityAuto?: boolean;
    flush?: boolean;
    opacityProperty?: boolean;
    visibilityProperty?: boolean;
}

interface CheckerboardReport {
    log?: string;
    reason?: CheckerboardReason;
    severity?: number;
    timestamp?: DOMTimeStamp;
}

interface ChildProcInfoDictionary {
    childID?: number;
    cpuCycleCount?: number;
    cpuTime?: number;
    memory?: number;
    origin?: UTF8String;
    pid?: number;
    threads?: ThreadInfoDictionary[];
    type?: WebIDLProcType;
    utilityActors?: UtilityActorsDictionary[];
    windows?: WindowInfoDictionary[];
}

interface ChromeFilePropertyBag extends FilePropertyBag {
    existenceCheck?: boolean;
    name?: string;
}

interface ClientQueryOptions {
    includeUncontrolled?: boolean;
    type?: ClientType;
}

interface ClientRectsAndTexts {
    rectList: DOMRectList;
    textList: string[];
}

interface ClipboardEventInit extends EventInit {
    data?: string;
    dataType?: string;
}

interface ClipboardItemOptions {
    presentationStyle?: PresentationStyle;
}

interface CloseEventInit extends EventInit {
    code?: number;
    reason?: string;
    wasClean?: boolean;
}

interface CollectedData {
    children?: any[];
    id?: Record<string, CollectedFormDataValue>;
    innerHTML?: string;
    scroll?: string;
    url?: string;
    xpath?: Record<string, CollectedFormDataValue>;
}

interface CompileScriptOptionsDictionary {
    charset?: string;
    hasReturnValue?: boolean;
    lazilyParse?: boolean;
}

interface CompositionEventInit extends UIEventInit {
    data?: string;
}

interface ComputedEffectTiming extends EffectTiming {
    activeDuration?: number;
    currentIteration?: number | null;
    endTime?: number;
    localTime?: number | null;
    progress?: number | null;
}

interface ConsoleInstanceOptions {
    consoleID?: string;
    dump?: ConsoleInstanceDumpCallback;
    innerID?: string;
    maxLogLevel?: ConsoleLogLevel;
    maxLogLevelPref?: string;
    prefix?: string;
}

interface ConstantSourceOptions {
    offset?: number;
}

interface ConstrainBooleanParameters {
    exact?: boolean;
    ideal?: boolean;
}

interface ConstrainDOMStringParameters {
    exact?: string | string[];
    ideal?: string | string[];
}

interface ConstrainDoubleRange {
    exact?: number;
    ideal?: number;
    max?: number;
    min?: number;
}

interface ConstrainLongRange {
    exact?: number;
    ideal?: number;
    max?: number;
    min?: number;
}

interface ContentVisibilityAutoStateChangeEventInit extends EventInit {
    skipped?: boolean;
}

interface ConvertCoordinateOptions {
    fromBox?: CSSBoxType;
    toBox?: CSSBoxType;
}

interface ConvolverOptions extends AudioNodeOptions {
    buffer?: AudioBuffer | null;
    disableNormalization?: boolean;
}

interface CopyOptions {
    noOverwrite?: boolean;
    recursive?: boolean;
}

interface CredentialCreationOptions {
    publicKey?: PublicKeyCredentialCreationOptions;
    signal?: AbortSignal;
}

interface CredentialPropertiesOutput {
    rk?: boolean;
}

interface CredentialRequestOptions {
    identity?: IdentityCredentialRequestOptions;
    mediation?: CredentialMediationRequirement;
    publicKey?: PublicKeyCredentialRequestOptions;
    signal?: AbortSignal;
}

interface CustomEventInit extends EventInit {
    detail?: any;
}

interface DOMMatrix2DInit {
    a?: number;
    b?: number;
    c?: number;
    d?: number;
    e?: number;
    f?: number;
    m11?: number;
    m12?: number;
    m21?: number;
    m22?: number;
    m41?: number;
    m42?: number;
}

interface DOMMatrixInit extends DOMMatrix2DInit {
    is2D?: boolean;
    m13?: number;
    m14?: number;
    m23?: number;
    m24?: number;
    m31?: number;
    m32?: number;
    m33?: number;
    m34?: number;
    m43?: number;
    m44?: number;
}

interface DOMPointInit {
    w?: number;
    x?: number;
    y?: number;
    z?: number;
}

interface DOMQuadInit {
    p1?: DOMPointInit;
    p2?: DOMPointInit;
    p3?: DOMPointInit;
    p4?: DOMPointInit;
}

interface DOMRectInit {
    height?: number;
    width?: number;
    x?: number;
    y?: number;
}

interface DateTimeValue {
    day?: number;
    hour?: number;
    minute?: number;
    month?: number;
    year?: number;
}

interface DecodedStreamDataDebugInfo {
    audioFramesWritten?: number;
    haveSentFinishAudio?: boolean;
    haveSentFinishVideo?: boolean;
    instance?: string;
    lastVideoEndTime?: number;
    lastVideoStartTime?: number;
    nextAudioTime?: number;
    streamAudioWritten?: number;
    streamVideoWritten?: number;
}

interface DecodedStreamDebugInfo {
    audioQueueFinished?: boolean;
    audioQueueSize?: number;
    data?: DecodedStreamDataDebugInfo;
    instance?: string;
    lastAudio?: number;
    lastOutputTime?: number;
    playing?: number;
    startTime?: number;
}

interface DelayOptions extends AudioNodeOptions {
    delayTime?: number;
    maxDelayTime?: number;
}

interface DeviceAccelerationInit {
    x?: number | null;
    y?: number | null;
    z?: number | null;
}

interface DeviceLightEventInit extends EventInit {
    value?: number;
}

interface DeviceMotionEventInit extends EventInit {
    acceleration?: DeviceAccelerationInit;
    accelerationIncludingGravity?: DeviceAccelerationInit;
    interval?: number | null;
    rotationRate?: DeviceRotationRateInit;
}

interface DeviceOrientationEventInit extends EventInit {
    absolute?: boolean;
    alpha?: number | null;
    beta?: number | null;
    gamma?: number | null;
}

interface DeviceRotationRateInit {
    alpha?: number | null;
    beta?: number | null;
    gamma?: number | null;
}

interface DictWithAllowSharedBufferSource {
    allowSharedArrayBuffer?: ArrayBuffer;
    allowSharedArrayBufferView?: ArrayBufferView;
    arrayBuffer?: ArrayBuffer;
    arrayBufferView?: ArrayBufferView;
}

interface DisplayMediaStreamConstraints {
    audio?: boolean | MediaTrackConstraints;
    video?: boolean | MediaTrackConstraints;
}

interface DisplayNameOptions {
    calendar?: string;
    keys?: string[];
    style?: string;
    type?: string;
}

interface DisplayNameResult {
    calendar?: string;
    locale?: string;
    style?: string;
    type?: string;
    values?: string[];
}

interface DocumentTimelineOptions {
    originTime?: DOMHighResTimeStamp;
}

interface DragEventInit extends MouseEventInit {
    dataTransfer?: DataTransfer | null;
}

interface DynamicsCompressorOptions extends AudioNodeOptions {
    attack?: number;
    knee?: number;
    ratio?: number;
    release?: number;
    threshold?: number;
}

interface EMEDebugInfo {
    keySystem?: string;
    sessionsInfo?: string;
}

interface EffectTiming {
    delay?: number;
    direction?: PlaybackDirection;
    duration?: number | string;
    easing?: UTF8String;
    endDelay?: number;
    fill?: FillMode;
    iterationStart?: number;
    iterations?: number;
}

interface ElementCreationOptions {
    is?: string;
    pseudo?: string;
}

interface ElementDefinitionOptions {
    extends?: string;
}

interface EncodedVideoChunkInit {
    data: ArrayBufferView | ArrayBuffer;
    duration?: number;
    timestamp: number;
    type: EncodedVideoChunkType;
}

interface EncodedVideoChunkMetadata {
    decoderConfig?: VideoDecoderConfig;
    svc?: SvcOutputMetadata;
}

interface ErrorEventInit extends EventInit {
    colno?: number;
    error?: any;
    filename?: string;
    lineno?: number;
    message?: string;
}

interface EventInit {
    bubbles?: boolean;
    cancelable?: boolean;
    composed?: boolean;
}

interface EventListenerOptions {
    capture?: boolean;
    mozSystemGroup?: boolean;
}

interface EventModifierInit extends UIEventInit {
    altKey?: boolean;
    ctrlKey?: boolean;
    metaKey?: boolean;
    modifierAltGraph?: boolean;
    modifierCapsLock?: boolean;
    modifierFn?: boolean;
    modifierFnLock?: boolean;
    modifierNumLock?: boolean;
    modifierOS?: boolean;
    modifierScrollLock?: boolean;
    modifierSymbol?: boolean;
    modifierSymbolLock?: boolean;
    shiftKey?: boolean;
}

interface EventSourceInit {
    withCredentials?: boolean;
}

interface ExecuteInGlobalOptions {
    reportExceptions?: boolean;
}

interface ExtendableEventInit extends EventInit {
}

interface ExtendableMessageEventInit extends ExtendableEventInit {
    data?: any;
    lastEventId?: string;
    origin?: string;
    ports?: MessagePort[];
    source?: Client | ServiceWorker | MessagePort | null;
}

interface FailedCertSecurityInfo {
    certChainStrings?: string[];
    certValidityRangeNotAfter?: DOMTimeStamp;
    certValidityRangeNotBefore?: DOMTimeStamp;
    errorCodeString?: string;
    errorMessage?: string;
    hasHPKP?: boolean;
    hasHSTS?: boolean;
    issuerCommonName?: string;
    overridableErrorCategory?: OverridableErrorCategory;
    validNotAfter?: DOMTimeStamp;
    validNotBefore?: DOMTimeStamp;
}

interface FdMapping {
    dst: number;
    src: number;
}

interface FetchEventInit extends EventInit {
    clientId?: string;
    request: Request;
    resultingClientId?: string;
}

interface FileInfo {
    creationTime?: number;
    lastAccessed?: number;
    lastModified?: number;
    path?: string;
    permissions?: number;
    size?: number;
    type?: FileType;
}

interface FilePropertyBag extends BlobPropertyBag {
    lastModified?: number;
}

interface FileSourceOptions {
    addResourceOptions?: FluentBundleAddResourceOptions;
}

interface FileSystemCreateWritableOptions {
    keepExistingData?: boolean;
}

interface FileSystemFlags {
    create?: boolean;
    exclusive?: boolean;
}

interface FileSystemGetDirectoryOptions {
    create?: boolean;
}

interface FileSystemGetFileOptions {
    create?: boolean;
}

interface FileSystemReadWriteOptions {
    at?: number;
}

interface FileSystemRemoveOptions {
    recursive?: boolean;
}

interface FluentBundleAddResourceOptions {
    allowOverrides?: boolean;
}

interface FluentBundleIteratorResult {
    done: boolean;
    value: FluentBundle | null;
}

interface FluentBundleOptions {
    pseudoStrategy?: UTF8String;
    useIsolating?: boolean;
}

interface FluentMessage {
    attributes: Record<UTF8String, FluentPattern>;
    value?: FluentPattern | null;
}

interface FluentTextElementItem {
    attr?: UTF8String;
    id?: UTF8String;
    text?: UTF8String;
}

interface FocusEventInit extends UIEventInit {
    relatedTarget?: EventTarget | null;
}

interface FocusOptions {
    focusVisible?: boolean;
    preventScroll?: boolean;
}

interface FontFaceDescriptors {
    ascentOverride?: UTF8String;
    descentOverride?: UTF8String;
    display?: UTF8String;
    featureSettings?: UTF8String;
    lineGapOverride?: UTF8String;
    sizeAdjust?: UTF8String;
    stretch?: UTF8String;
    style?: UTF8String;
    unicodeRange?: UTF8String;
    variant?: UTF8String;
    variationSettings?: UTF8String;
    weight?: UTF8String;
}

interface FontFaceSetIteratorResult {
    done: boolean;
    value: any;
}

interface FontFaceSetLoadEventInit extends EventInit {
    fontfaces?: FontFace[];
}

interface FormAutofillConfidences {
    ccName?: number;
    ccNumber?: number;
}

interface FormDataEventInit extends EventInit {
    formData: FormData;
}

interface FrameCrashedEventInit extends EventInit {
    browsingContextId?: number;
    childID?: number;
    isTopFrame?: boolean;
}

interface GPUBindGroupDescriptor extends GPUObjectDescriptorBase {
    entries: GPUBindGroupEntry[];
    layout: GPUBindGroupLayout;
}

interface GPUBindGroupEntry {
    binding: GPUIndex32;
    resource: GPUBindingResource;
}

interface GPUBindGroupLayoutDescriptor extends GPUObjectDescriptorBase {
    entries: GPUBindGroupLayoutEntry[];
}

interface GPUBindGroupLayoutEntry {
    binding: GPUIndex32;
    buffer?: GPUBufferBindingLayout;
    sampler?: GPUSamplerBindingLayout;
    storageTexture?: GPUStorageTextureBindingLayout;
    texture?: GPUTextureBindingLayout;
    visibility: GPUShaderStageFlags;
}

interface GPUBlendComponent {
    dstFactor?: GPUBlendFactor;
    operation?: GPUBlendOperation;
    srcFactor?: GPUBlendFactor;
}

interface GPUBlendState {
    alpha: GPUBlendComponent;
    color: GPUBlendComponent;
}

interface GPUBufferBinding {
    buffer: GPUBuffer;
    offset?: GPUSize64;
    size?: GPUSize64;
}

interface GPUBufferBindingLayout {
    hasDynamicOffset?: boolean;
    minBindingSize?: GPUSize64;
    type?: GPUBufferBindingType;
}

interface GPUBufferDescriptor extends GPUObjectDescriptorBase {
    mappedAtCreation?: boolean;
    size: GPUSize64;
    usage: GPUBufferUsageFlags;
}

interface GPUCanvasConfiguration {
    alphaMode?: GPUCanvasAlphaMode;
    device: GPUDevice;
    format: GPUTextureFormat;
    usage?: GPUTextureUsageFlags;
    viewFormats?: GPUTextureFormat[];
}

interface GPUColorDict {
    a: number;
    b: number;
    g: number;
    r: number;
}

interface GPUColorTargetState {
    blend?: GPUBlendState;
    format: GPUTextureFormat;
    writeMask?: GPUColorWriteFlags;
}

interface GPUCommandBufferDescriptor extends GPUObjectDescriptorBase {
}

interface GPUCommandEncoderDescriptor extends GPUObjectDescriptorBase {
}

interface GPUComputePassDescriptor extends GPUObjectDescriptorBase {
}

interface GPUComputePipelineDescriptor extends GPUPipelineDescriptorBase {
    compute: GPUProgrammableStage;
}

interface GPUDepthStencilState {
    depthBias?: GPUDepthBias;
    depthBiasClamp?: number;
    depthBiasSlopeScale?: number;
    depthCompare?: GPUCompareFunction;
    depthWriteEnabled?: boolean;
    format: GPUTextureFormat;
    stencilBack?: GPUStencilFaceState;
    stencilFront?: GPUStencilFaceState;
    stencilReadMask?: GPUStencilValue;
    stencilWriteMask?: GPUStencilValue;
}

interface GPUDeviceDescriptor extends GPUObjectDescriptorBase {
    defaultQueue?: GPUQueueDescriptor;
    requiredFeatures?: GPUFeatureName[];
    requiredLimits?: Record<string, GPUSize64>;
}

interface GPUExtent3DDict {
    depthOrArrayLayers?: GPUIntegerCoordinate;
    height?: GPUIntegerCoordinate;
    width: GPUIntegerCoordinate;
}

interface GPUFragmentState extends GPUProgrammableStage {
    targets: GPUColorTargetState[];
}

interface GPUImageCopyBuffer extends GPUImageDataLayout {
    buffer: GPUBuffer;
}

interface GPUImageCopyExternalImage {
    flipY?: boolean;
    origin?: GPUOrigin2D;
    source: ImageBitmap | HTMLCanvasElement | OffscreenCanvas;
}

interface GPUImageCopyTexture {
    aspect?: GPUTextureAspect;
    mipLevel?: GPUIntegerCoordinate;
    origin?: GPUOrigin3D;
    texture: GPUTexture;
}

interface GPUImageCopyTextureTagged extends GPUImageCopyTexture {
    premultipliedAlpha?: boolean;
}

interface GPUImageDataLayout {
    bytesPerRow?: GPUSize32;
    offset?: GPUSize64;
    rowsPerImage?: GPUSize32;
}

interface GPUMultisampleState {
    alphaToCoverageEnabled?: boolean;
    count?: GPUSize32;
    mask?: GPUSampleMask;
}

interface GPUObjectDescriptorBase {
    label?: string;
}

interface GPUOrigin2DDict {
    x?: GPUIntegerCoordinate;
    y?: GPUIntegerCoordinate;
}

interface GPUOrigin3DDict {
    x?: GPUIntegerCoordinate;
    y?: GPUIntegerCoordinate;
    z?: GPUIntegerCoordinate;
}

interface GPUPipelineDescriptorBase extends GPUObjectDescriptorBase {
    layout: GPUPipelineLayout | GPUAutoLayoutMode;
}

interface GPUPipelineLayoutDescriptor extends GPUObjectDescriptorBase {
    bindGroupLayouts: GPUBindGroupLayout[];
}

interface GPUPrimitiveState {
    cullMode?: GPUCullMode;
    frontFace?: GPUFrontFace;
    stripIndexFormat?: GPUIndexFormat;
    topology?: GPUPrimitiveTopology;
    unclippedDepth?: boolean;
}

interface GPUProgrammableStage {
    entryPoint: string;
    module: GPUShaderModule;
}

interface GPUQueueDescriptor extends GPUObjectDescriptorBase {
}

interface GPURenderBundleDescriptor extends GPUObjectDescriptorBase {
}

interface GPURenderBundleEncoderDescriptor extends GPURenderPassLayout {
    depthReadOnly?: boolean;
    stencilReadOnly?: boolean;
}

interface GPURenderPassColorAttachment {
    clearValue?: GPUColor;
    loadOp: GPULoadOp;
    resolveTarget?: GPUTextureView;
    storeOp: GPUStoreOp;
    view: GPUTextureView;
}

interface GPURenderPassDepthStencilAttachment {
    depthClearValue?: number;
    depthLoadOp?: GPULoadOp;
    depthReadOnly?: boolean;
    depthStoreOp?: GPUStoreOp;
    stencilClearValue?: GPUStencilValue;
    stencilLoadOp?: GPULoadOp;
    stencilReadOnly?: boolean;
    stencilStoreOp?: GPUStoreOp;
    view: GPUTextureView;
}

interface GPURenderPassDescriptor extends GPUObjectDescriptorBase {
    colorAttachments: GPURenderPassColorAttachment[];
    depthStencilAttachment?: GPURenderPassDepthStencilAttachment;
    occlusionQuerySet?: GPUQuerySet;
}

interface GPURenderPassLayout extends GPUObjectDescriptorBase {
    colorFormats: GPUTextureFormat[];
    depthStencilFormat?: GPUTextureFormat;
    sampleCount?: GPUSize32;
}

interface GPURenderPipelineDescriptor extends GPUPipelineDescriptorBase {
    depthStencil?: GPUDepthStencilState;
    fragment?: GPUFragmentState;
    multisample?: GPUMultisampleState;
    primitive?: GPUPrimitiveState;
    vertex: GPUVertexState;
}

interface GPURequestAdapterOptions {
    forceFallbackAdapter?: boolean;
    powerPreference?: GPUPowerPreference;
}

interface GPUSamplerBindingLayout {
    type?: GPUSamplerBindingType;
}

interface GPUSamplerDescriptor extends GPUObjectDescriptorBase {
    addressModeU?: GPUAddressMode;
    addressModeV?: GPUAddressMode;
    addressModeW?: GPUAddressMode;
    compare?: GPUCompareFunction;
    lodMaxClamp?: number;
    lodMinClamp?: number;
    magFilter?: GPUFilterMode;
    maxAnisotropy?: number;
    minFilter?: GPUFilterMode;
    mipmapFilter?: GPUMipmapFilterMode;
}

interface GPUShaderModuleDescriptor extends GPUObjectDescriptorBase {
    code: UTF8String;
    sourceMap?: any;
}

interface GPUStencilFaceState {
    compare?: GPUCompareFunction;
    depthFailOp?: GPUStencilOperation;
    failOp?: GPUStencilOperation;
    passOp?: GPUStencilOperation;
}

interface GPUStorageTextureBindingLayout {
    access?: GPUStorageTextureAccess;
    format: GPUTextureFormat;
    viewDimension?: GPUTextureViewDimension;
}

interface GPUTextureBindingLayout {
    multisampled?: boolean;
    sampleType?: GPUTextureSampleType;
    viewDimension?: GPUTextureViewDimension;
}

interface GPUTextureDescriptor extends GPUObjectDescriptorBase {
    dimension?: GPUTextureDimension;
    format: GPUTextureFormat;
    mipLevelCount?: GPUIntegerCoordinate;
    sampleCount?: GPUSize32;
    size: GPUExtent3D;
    usage: GPUTextureUsageFlags;
    viewFormats?: GPUTextureFormat[];
}

interface GPUTextureViewDescriptor extends GPUObjectDescriptorBase {
    arrayLayerCount?: GPUIntegerCoordinate;
    aspect?: GPUTextureAspect;
    baseArrayLayer?: GPUIntegerCoordinate;
    baseMipLevel?: GPUIntegerCoordinate;
    dimension?: GPUTextureViewDimension;
    format?: GPUTextureFormat;
    mipLevelCount?: GPUIntegerCoordinate;
}

interface GPUUncapturedErrorEventInit extends EventInit {
    error: GPUError;
}

interface GPUVertexAttribute {
    format: GPUVertexFormat;
    offset: GPUSize64;
    shaderLocation: GPUIndex32;
}

interface GPUVertexBufferLayout {
    arrayStride: GPUSize64;
    attributes: GPUVertexAttribute[];
    stepMode?: GPUVertexStepMode;
}

interface GPUVertexState extends GPUProgrammableStage {
    buffers?: (GPUVertexBufferLayout | null)[];
}

interface GainOptions extends AudioNodeOptions {
    gain?: number;
}

interface GamepadAxisMoveEventInit extends GamepadEventInit {
    axis?: number;
    value?: number;
}

interface GamepadButtonEventInit extends GamepadEventInit {
    button?: number;
}

interface GamepadEventInit extends EventInit {
    gamepad?: Gamepad | null;
}

interface GamepadLightColor {
    blue: number;
    green: number;
    red: number;
}

interface GetAnimationsOptions {
    subtree?: boolean;
}

interface GetChildrenOptions {
    ignoreAbsent?: boolean;
}

interface GetNotificationOptions {
    tag?: string;
}

interface GetRootNodeOptions {
    composed?: boolean;
}

interface GleanDistributionData {
    sum: number;
    values: Record<UTF8String, number>;
}

interface GleanEventRecord {
    category: UTF8String;
    extra?: Record<UTF8String, UTF8String>;
    name: UTF8String;
    timestamp: number;
}

interface GleanRateData {
    denominator: number;
    numerator: number;
}

interface HTMLMediaElementDebugInfo {
    EMEInfo?: EMEDebugInfo;
    compositorDroppedFrames?: number;
    decoder?: MediaDecoderDebugInfo;
}

interface HashChangeEventInit extends EventInit {
    newURL?: string;
    oldURL?: string;
}

interface HeapSnapshotBoundaries {
    debugger?: any;
    globals?: any[];
    runtime?: boolean;
}

interface IDBIndexParameters {
    locale?: string | null;
    multiEntry?: boolean;
    unique?: boolean;
}

interface IDBObjectStoreParameters {
    autoIncrement?: boolean;
    keyPath?: string | string[] | null;
}

interface IDBOpenDBOptions {
    version?: number;
}

interface IDBVersionChangeEventInit extends EventInit {
    newVersion?: number | null;
    oldVersion?: number;
}

interface IIRFilterOptions extends AudioNodeOptions {
    feedback: number[];
    feedforward: number[];
}

interface IOActivityDataDictionary {
    location?: string;
    rx?: number;
    tx?: number;
}

interface IdentityCredentialLogoutRPsRequest {
    accountId: UTF8String;
    url: UTF8String;
}

interface IdentityCredentialRequestOptions {
    providers?: IdentityProviderConfig[];
}

interface IdentityProviderConfig {
    clientId: string;
    configURL: UTF8String;
    nonce?: string;
}

interface IdleRequestOptions {
    timeout?: number;
}

interface ImageBitmapOptions {
    colorSpaceConversion?: ColorSpaceConversion;
    imageOrientation?: ImageOrientation;
    premultiplyAlpha?: PremultiplyAlpha;
    resizeHeight?: number;
    resizeWidth?: number;
}

interface ImageCaptureErrorEventInit extends EventInit {
    imageCaptureError?: ImageCaptureError | null;
}

interface ImageEncodeOptions {
    quality?: number;
    type?: string;
}

interface ImageText {
    confidence: number;
    quad: DOMQuad;
    string: string;
}

interface ImportESModuleOptionsDictionary {
    loadInDevToolsLoader?: boolean;
}

interface InputEventInit extends UIEventInit {
    data?: string | null;
    dataTransfer?: DataTransfer | null;
    inputType?: string;
    isComposing?: boolean;
    targetRanges?: StaticRange[];
}

interface InspectorCSSPropertyDefinition {
    fromJS: boolean;
    inherits: boolean;
    initialValue: UTF8String | null;
    name: UTF8String;
    syntax: UTF8String;
}

interface InspectorFontFeature {
    languageSystem: string;
    script: string;
    tag: string;
}

interface InspectorRGBATuple {
    a?: number;
    b?: number;
    g?: number;
    r?: number;
}

interface InspectorVariationAxis {
    defaultValue: number;
    maxValue: number;
    minValue: number;
    name: string;
    tag: string;
}

interface InspectorVariationInstance {
    name: string;
    values: InspectorVariationValue[];
}

interface InspectorVariationValue {
    axis: string;
    value: number;
}

interface InstallTriggerData {
    Hash?: string | null;
    IconURL?: string | null;
    URL?: string;
}

interface InteractionData {
    interactionCount?: number;
    interactionTimeInMilliseconds?: number;
    scrollingDistanceInPixels?: number;
}

interface IntersectionObserverInit {
    root?: Element | Document | null;
    rootMargin?: UTF8String;
    threshold?: number | number[];
}

interface InvokeEventInit extends EventInit {
    action?: string;
    invoker?: Element | null;
}

interface KeyboardEventInit extends EventModifierInit {
    charCode?: number;
    code?: string;
    isComposing?: boolean;
    key?: string;
    keyCode?: number;
    location?: number;
    repeat?: boolean;
    which?: number;
}

interface KeyframeAnimationOptions extends KeyframeEffectOptions {
    id?: string;
}

interface KeyframeEffectOptions extends EffectTiming {
    composite?: CompositeOperation;
    iterationComposite?: IterationCompositeOperation;
    pseudoElement?: string | null;
}

interface L10nFileSourceMockFile {
    path: UTF8String;
    source: UTF8String;
}

interface L10nIdArgs {
    args?: L10nArgs | null;
    id?: UTF8String | null;
}

interface L10nMessage {
    attributes?: AttributeNameValue[] | null;
    value?: UTF8String | null;
}

interface L10nOverlaysError {
    code?: number;
    l10nName?: string;
    sourceElementName?: string;
    translatedElementName?: string;
}

interface L10nRegistryOptions {
    bundleOptions?: FluentBundleOptions;
}

interface LaunchOptions {
    disclaim?: boolean;
    environment: UnixString[];
    fdMap?: FdMapping[];
    workdir?: UnixString;
}

interface LibcConstants {
    AT_EACCESS?: number;
    EACCES?: number;
    EAGAIN?: number;
    EINTR?: number;
    EINVAL?: number;
    ENOSYS?: number;
    FD_CLOEXEC?: number;
    F_SETFD?: number;
    F_SETFL?: number;
    O_CREAT?: number;
    O_NONBLOCK?: number;
    O_WRONLY?: number;
    POLLERR?: number;
    POLLHUP?: number;
    POLLIN?: number;
    POLLNVAL?: number;
    POLLOUT?: number;
    PR_CAPBSET_READ?: number;
    WNOHANG?: number;
}

interface LoadURIOptions {
    baseURI?: URI | null;
    cancelContentJSEpoch?: number;
    csp?: ContentSecurityPolicy | null;
    hasValidUserGestureActivation?: boolean;
    headers?: InputStream | null;
    loadFlags?: number;
    postData?: InputStream | null;
    referrerInfo?: ReferrerInfo | null;
    remoteTypeOverride?: UTF8String | null;
    triggeringPrincipal?: Principal | null;
    triggeringRemoteType?: UTF8String | null;
    triggeringSandboxFlags?: number;
    triggeringStorageAccess?: boolean;
    triggeringWindowId?: number;
    wasSchemelessInput?: boolean;
}

interface LockInfo {
    clientId?: string;
    mode?: LockMode;
    name?: string;
}

interface LockManagerSnapshot {
    held?: LockInfo[];
    pending?: LockInfo[];
}

interface LockOptions {
    ifAvailable?: boolean;
    mode?: LockMode;
    signal?: AbortSignal;
    steal?: boolean;
}

interface MIDIConnectionEventInit extends EventInit {
    port?: MIDIPort | null;
}

interface MIDIMessageEventInit extends EventInit {
    data?: Uint8Array;
}

interface MIDIOptions {
    software?: boolean;
    sysex?: boolean;
}

interface MakeDirectoryOptions {
    createAncestors?: boolean;
    ignoreExisting?: boolean;
    permissions?: number;
}

interface MatchPatternOptions {
    ignorePath?: boolean;
    restrictSchemes?: boolean;
}

interface MediaCacheStreamDebugInfo {
    cacheSuspended?: boolean;
    channelEnded?: boolean;
    channelOffset?: number;
    loadID?: number;
    streamLength?: number;
}

interface MediaConfiguration {
    audio?: AudioConfiguration;
    video?: VideoConfiguration;
}

interface MediaDecoderDebugInfo {
    PlayState?: string;
    channels?: number;
    containerType?: string;
    hasAudio?: boolean;
    hasVideo?: boolean;
    instance?: string;
    rate?: number;
    reader?: MediaFormatReaderDebugInfo;
    resource?: MediaResourceDebugInfo;
    stateMachine?: MediaDecoderStateMachineDebugInfo;
}

interface MediaDecoderStateMachineDebugInfo {
    audioCompleted?: boolean;
    audioRequestStatus?: string;
    clock?: number;
    decodedAudioEndTime?: number;
    decodedVideoEndTime?: number;
    duration?: number;
    isPlaying?: boolean;
    mediaSink?: MediaSinkDebugInfo;
    mediaTime?: number;
    playState?: number;
    sentFirstFrameLoadedEvent?: boolean;
    state?: string;
    stateObj?: MediaDecoderStateMachineDecodingStateDebugInfo;
    videoCompleted?: boolean;
    videoRequestStatus?: string;
}

interface MediaDecoderStateMachineDecodingStateDebugInfo {
    isPrerolling?: boolean;
}

interface MediaDecodingConfiguration extends MediaConfiguration {
    type: MediaDecodingType;
}

interface MediaElementAudioSourceOptions {
    mediaElement: HTMLMediaElement;
}

interface MediaEncodingConfiguration extends MediaConfiguration {
    type: MediaEncodingType;
}

interface MediaFormatReaderDebugInfo {
    audioChannels?: number;
    audioDecoderName?: string;
    audioFramesDecoded?: number;
    audioRate?: number;
    audioState?: MediaStateDebugInfo;
    audioType?: string;
    frameStats?: MediaFrameStats;
    videoDecoderName?: string;
    videoHardwareAccelerated?: boolean;
    videoHeight?: number;
    videoNumSamplesOutputTotal?: number;
    videoNumSamplesSkippedTotal?: number;
    videoRate?: number;
    videoState?: MediaStateDebugInfo;
    videoType?: string;
    videoWidth?: number;
}

interface MediaFrameStats {
    droppedCompositorFrames?: number;
    droppedDecodedFrames?: number;
    droppedSinkFrames?: number;
}

interface MediaImage {
    sizes?: string;
    src: string;
    type?: string;
}

interface MediaKeyMessageEventInit extends EventInit {
    message: ArrayBuffer;
    messageType: MediaKeyMessageType;
}

interface MediaKeyNeededEventInit extends EventInit {
    initData?: ArrayBuffer | null;
    initDataType?: string;
}

interface MediaKeySystemConfiguration {
    audioCapabilities?: MediaKeySystemMediaCapability[];
    distinctiveIdentifier?: MediaKeysRequirement;
    initDataTypes?: string[];
    label?: string;
    persistentState?: MediaKeysRequirement;
    sessionTypes?: string[];
    videoCapabilities?: MediaKeySystemMediaCapability[];
}

interface MediaKeySystemMediaCapability {
    contentType?: string;
    encryptionScheme?: string | null;
    robustness?: string;
}

interface MediaKeysPolicy {
    minHdcpVersion?: string;
}

interface MediaMetadataInit {
    album?: string;
    artist?: string;
    artwork?: MediaImage[];
    title?: string;
}

interface MediaPositionState {
    duration?: number;
    playbackRate?: number;
    position?: number;
}

interface MediaQueryListEventInit extends EventInit {
    matches?: boolean;
    media?: UTF8String;
}

interface MediaRecorderErrorEventInit extends EventInit {
    error: DOMException;
}

interface MediaRecorderOptions {
    audioBitsPerSecond?: number;
    bitsPerSecond?: number;
    mimeType?: string;
    videoBitsPerSecond?: number;
}

interface MediaResourceDebugInfo {
    cacheStream?: MediaCacheStreamDebugInfo;
}

interface MediaSessionActionDetails {
    action: MediaSessionAction;
    fastSeek?: boolean;
    seekOffset?: number;
    seekTime?: number;
}

interface MediaSinkDebugInfo {
    audioSinkWrapper?: AudioSinkWrapperDebugInfo;
    decodedStream?: DecodedStreamDebugInfo;
    videoSink?: VideoSinkDebugInfo;
}

interface MediaSourceDecoderDebugInfo {
    demuxer?: MediaSourceDemuxerDebugInfo;
    reader?: MediaFormatReaderDebugInfo;
}

interface MediaSourceDemuxerDebugInfo {
    audioTrack?: TrackBuffersManagerDebugInfo;
    videoTrack?: TrackBuffersManagerDebugInfo;
}

interface MediaStateDebugInfo {
    demuxEOS?: number;
    demuxQueueSize?: number;
    drainState?: number;
    hasDecoder?: boolean;
    hasDemuxRequest?: boolean;
    hasPromise?: boolean;
    lastStreamSourceID?: number;
    needInput?: boolean;
    numSamplesInput?: number;
    numSamplesOutput?: number;
    pending?: number;
    queueSize?: number;
    timeTreshold?: number;
    timeTresholdHasSeeked?: boolean;
    waitingForData?: boolean;
    waitingForKey?: boolean;
    waitingPromise?: boolean;
}

interface MediaStreamAudioSourceOptions {
    mediaStream: MediaStream;
}

interface MediaStreamConstraints {
    audio?: boolean | MediaTrackConstraints;
    fake?: boolean;
    peerIdentity?: string | null;
    picture?: boolean;
    video?: boolean | MediaTrackConstraints;
}

interface MediaStreamEventInit extends EventInit {
    stream?: MediaStream | null;
}

interface MediaStreamTrackAudioSourceOptions {
    mediaStreamTrack: MediaStreamTrack;
}

interface MediaStreamTrackEventInit extends EventInit {
    track: MediaStreamTrack;
}

interface MediaTrackConstraintSet {
    autoGainControl?: ConstrainBoolean;
    browserWindow?: number;
    channelCount?: ConstrainLong;
    deviceId?: ConstrainDOMString;
    echoCancellation?: ConstrainBoolean;
    facingMode?: ConstrainDOMString;
    frameRate?: ConstrainDouble;
    groupId?: ConstrainDOMString;
    height?: ConstrainLong;
    mediaSource?: string;
    noiseSuppression?: ConstrainBoolean;
    scrollWithPage?: boolean;
    viewportHeight?: ConstrainLong;
    viewportOffsetX?: ConstrainLong;
    viewportOffsetY?: ConstrainLong;
    viewportWidth?: ConstrainLong;
    width?: ConstrainLong;
}

interface MediaTrackConstraints extends MediaTrackConstraintSet {
    advanced?: MediaTrackConstraintSet[];
}

interface MediaTrackSettings {
    autoGainControl?: boolean;
    browserWindow?: number;
    channelCount?: number;
    deviceId?: string;
    echoCancellation?: boolean;
    facingMode?: string;
    frameRate?: number;
    groupId?: string;
    height?: number;
    mediaSource?: string;
    noiseSuppression?: boolean;
    scrollWithPage?: boolean;
    viewportHeight?: number;
    viewportOffsetX?: number;
    viewportOffsetY?: number;
    viewportWidth?: number;
    width?: number;
}

interface MediaTrackSupportedConstraints {
    aspectRatio?: boolean;
    autoGainControl?: boolean;
    browserWindow?: boolean;
    channelCount?: boolean;
    deviceId?: boolean;
    echoCancellation?: boolean;
    facingMode?: boolean;
    frameRate?: boolean;
    groupId?: boolean;
    height?: boolean;
    latency?: boolean;
    mediaSource?: boolean;
    noiseSuppression?: boolean;
    sampleRate?: boolean;
    sampleSize?: boolean;
    scrollWithPage?: boolean;
    viewportHeight?: boolean;
    viewportOffsetX?: boolean;
    viewportOffsetY?: boolean;
    viewportWidth?: boolean;
    volume?: boolean;
    width?: boolean;
}

interface MerchantValidationEventInit extends EventInit {
    methodName?: string;
    validationURL?: string;
}

interface MessageEventInit extends EventInit {
    data?: any;
    lastEventId?: string;
    origin?: string;
    ports?: MessagePort[];
    source?: MessageEventSource | null;
}

interface MouseEventInit extends EventModifierInit {
    button?: number;
    buttons?: number;
    clientX?: number;
    clientY?: number;
    movementX?: number;
    movementY?: number;
    relatedTarget?: EventTarget | null;
    screenX?: number;
    screenY?: number;
}

interface MoveOptions {
    noOverwrite?: boolean;
}

interface MozApplicationEventInit extends EventInit {
    application?: DOMApplication | null;
}

interface MozDocumentMatcherInit {
    allFrames?: boolean;
    checkPermissions?: boolean;
    excludeGlobs?: MatchGlobOrString[] | null;
    excludeMatches?: MatchPatternSetOrStringSequence | null;
    frameID?: number | null;
    hasActiveTabPermission?: boolean;
    includeGlobs?: MatchGlobOrString[] | null;
    matchAboutBlank?: boolean;
    matches: MatchPatternSetOrStringSequence;
    originAttributesPatterns?: OriginAttributesPatternDictionary[] | null;
}

interface MozFrameAncestorInfo {
    frameId: number;
    url: string;
}

interface MozHTTPHeader {
    name: string;
    value: string;
}

interface MozPluginParameter {
    name?: string;
    value?: string;
}

interface MozProxyInfo {
    connectionIsolationKey?: string | null;
    failoverTimeout?: number;
    host: string;
    port: number;
    proxyAuthorizationHeader?: string | null;
    proxyDNS: boolean;
    type: string;
    username?: string | null;
}

interface MozRequestFilter {
    incognito?: boolean | null;
    types?: MozContentPolicyType[] | null;
    urls?: MatchPatternSet | null;
}

interface MozRequestMatchOptions {
    isProxy?: boolean;
}

interface MozUrlClassification {
    firstParty: MozUrlClassificationFlags[];
    thirdParty: MozUrlClassificationFlags[];
}

interface MozXMLHttpRequestParameters {
    mozAnon?: boolean;
    mozSystem?: boolean;
}

interface MultiCacheQueryOptions extends CacheQueryOptions {
    cacheName?: string;
}

interface MutationObserverInit {
    animations?: boolean;
    attributeFilter?: string[];
    attributeOldValue?: boolean;
    attributes?: boolean;
    characterData?: boolean;
    characterDataOldValue?: boolean;
    childList?: boolean;
    chromeOnlyNodes?: boolean;
    subtree?: boolean;
}

interface MutationObservingInfo extends MutationObserverInit {
    observedNode?: Node | null;
}

interface NavigationPreloadState {
    enabled?: boolean;
    headerValue?: string;
}

interface NetErrorInfo {
    errorCodeString?: string;
}

interface NotificationBehavior {
    noclear?: boolean;
    noscreen?: boolean;
    showOnlyOnce?: boolean;
    soundFile?: string;
    vibrationPattern?: number[];
}

interface NotificationEventInit extends ExtendableEventInit {
    notification: Notification;
}

interface NotificationOptions {
    body?: string;
    data?: any;
    dir?: NotificationDirection;
    icon?: string;
    lang?: string;
    mozbehavior?: NotificationBehavior;
    requireInteraction?: boolean;
    silent?: boolean;
    tag?: string;
    vibrate?: VibratePattern;
}

interface ObservableArrayCallbacks {
    deleteBooleanCallback?: SetDeleteBooleanCallback;
    deleteInterfaceCallback?: SetDeleteInterfaceCallback;
    deleteObjectCallback?: SetDeleteObjectCallback;
    setBooleanCallback?: SetDeleteBooleanCallback;
    setInterfaceCallback?: SetDeleteInterfaceCallback;
    setObjectCallback?: SetDeleteObjectCallback;
}

interface OfflineAudioCompletionEventInit extends EventInit {
    renderedBuffer: AudioBuffer;
}

interface OfflineAudioContextOptions {
    length: number;
    numberOfChannels?: number;
    sampleRate: number;
}

interface OpenPopupOptions {
    attributesOverride?: boolean;
    isContextMenu?: boolean;
    position?: string;
    triggerEvent?: Event | null;
    x?: number;
    y?: number;
}

interface OptionalEffectTiming {
    delay?: number;
    direction?: PlaybackDirection;
    duration?: number | string;
    easing?: UTF8String;
    endDelay?: number;
    fill?: FillMode;
    iterationStart?: number;
    iterations?: number;
}

interface OriginAttributesDictionary {
    firstPartyDomain?: string;
    geckoViewSessionContextId?: string;
    inIsolatedMozBrowser?: boolean;
    partitionKey?: string;
    privateBrowsingId?: number;
    userContextId?: number;
}

interface OriginAttributesPatternDictionary {
    firstPartyDomain?: string;
    geckoViewSessionContextId?: string;
    inIsolatedMozBrowser?: boolean;
    partitionKey?: string;
    partitionKeyPattern?: PartitionKeyPatternDictionary;
    privateBrowsingId?: number;
    userContextId?: number;
}

interface OscillatorOptions extends AudioNodeOptions {
    detune?: number;
    frequency?: number;
    periodicWave?: PeriodicWave;
    type?: OscillatorType;
}

interface PCErrorData {
    message: string;
    name: PCError;
}

interface PageTransitionEventInit extends EventInit {
    inFrameSwap?: boolean;
    persisted?: boolean;
}

interface PannerOptions extends AudioNodeOptions {
    coneInnerAngle?: number;
    coneOuterAngle?: number;
    coneOuterGain?: number;
    distanceModel?: DistanceModelType;
    maxDistance?: number;
    orientationX?: number;
    orientationY?: number;
    orientationZ?: number;
    panningModel?: PanningModelType;
    positionX?: number;
    positionY?: number;
    positionZ?: number;
    refDistance?: number;
    rolloffFactor?: number;
}

interface ParentProcInfoDictionary {
    children?: ChildProcInfoDictionary[];
    cpuCycleCount?: number;
    cpuTime?: number;
    memory?: number;
    pid?: number;
    threads?: ThreadInfoDictionary[];
    type?: WebIDLProcType;
}

interface PartitionKeyPatternDictionary {
    baseDomain?: string;
    port?: number;
    scheme?: string;
}

interface PayerErrors {
    email?: string;
    name?: string;
    phone?: string;
}

interface PaymentCurrencyAmount {
    currency: string;
    value: string;
}

interface PaymentDetailsBase {
    displayItems?: PaymentItem[];
    modifiers?: PaymentDetailsModifier[];
    shippingOptions?: PaymentShippingOption[];
}

interface PaymentDetailsInit extends PaymentDetailsBase {
    id?: string;
    total: PaymentItem;
}

interface PaymentDetailsModifier {
    additionalDisplayItems?: PaymentItem[];
    data?: any;
    supportedMethods: string;
    total?: PaymentItem;
}

interface PaymentDetailsUpdate extends PaymentDetailsBase {
    error?: string;
    payerErrors?: PayerErrors;
    paymentMethodErrors?: any;
    shippingAddressErrors?: AddressErrors;
    total?: PaymentItem;
}

interface PaymentItem {
    amount: PaymentCurrencyAmount;
    label: string;
    pending?: boolean;
}

interface PaymentMethodChangeEventInit extends PaymentRequestUpdateEventInit {
    methodDetails?: any;
    methodName?: string;
}

interface PaymentMethodData {
    data?: any;
    supportedMethods: string;
}

interface PaymentOptions {
    requestBillingAddress?: boolean;
    requestPayerEmail?: boolean;
    requestPayerName?: boolean;
    requestPayerPhone?: boolean;
    requestShipping?: boolean;
    shippingType?: PaymentShippingType;
}

interface PaymentRequestUpdateEventInit extends EventInit {
}

interface PaymentShippingOption {
    amount: PaymentCurrencyAmount;
    id: string;
    label: string;
    selected?: boolean;
}

interface PaymentValidationErrors {
    error?: string;
    payer?: PayerErrors;
    paymentMethod?: any;
    shippingAddress?: AddressErrors;
}

interface PerformanceEntryEventInit extends EventInit {
    duration?: DOMHighResTimeStamp;
    entryType?: string;
    epoch?: number;
    name?: string;
    origin?: string;
    startTime?: DOMHighResTimeStamp;
}

interface PerformanceEntryFilterOptions {
    entryType?: string;
    initiatorType?: string;
    name?: string;
}

interface PerformanceMarkOptions {
    detail?: any;
    startTime?: DOMHighResTimeStamp;
}

interface PerformanceMeasureOptions {
    detail?: any;
    duration?: DOMHighResTimeStamp;
    end?: string | DOMHighResTimeStamp;
    start?: string | DOMHighResTimeStamp;
}

interface PerformanceObserverInit {
    buffered?: boolean;
    durationThreshold?: DOMHighResTimeStamp;
    entryTypes?: string[];
    type?: string;
}

interface PeriodicWaveConstraints {
    disableNormalization?: boolean;
}

interface PeriodicWaveOptions extends PeriodicWaveConstraints {
    imag?: number[] | Float32Array;
    real?: number[] | Float32Array;
}

interface PlacesBookmarkAdditionInit {
    dateAdded: number;
    frecency: number;
    guid: string;
    hidden: boolean;
    id: number;
    index: number;
    isTagging: boolean;
    itemType: number;
    lastVisitDate: number | null;
    parentGuid: string;
    parentId: number;
    source: number;
    tags: string | null;
    targetFolderGuid: string | null;
    targetFolderItemId: number;
    targetFolderTitle: string | null;
    title: string;
    url: string;
    visitCount: number;
}

interface PlacesBookmarkGuidInit {
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    lastModified: number;
    parentGuid: string;
    source: number;
    url?: string | null;
}

interface PlacesBookmarkKeywordInit {
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    keyword: string;
    lastModified: number;
    parentGuid: string;
    source: number;
    url?: string | null;
}

interface PlacesBookmarkMovedInit {
    dateAdded: number;
    frecency: number;
    guid: string;
    hidden: boolean;
    id: number;
    index: number;
    isTagging: boolean;
    itemType: number;
    lastVisitDate: number | null;
    oldIndex: number;
    oldParentGuid: string;
    parentGuid: string;
    source: number;
    tags: string | null;
    title: string;
    url?: string | null;
    visitCount: number;
}

interface PlacesBookmarkRemovedInit {
    guid: string;
    id: number;
    index: number;
    isDescendantRemoval?: boolean;
    isTagging: boolean;
    itemType: number;
    parentGuid: string;
    parentId: number;
    source: number;
    title: string;
    url: string;
}

interface PlacesBookmarkTagsInit {
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    lastModified: number;
    parentGuid: string;
    source: number;
    tags: string[];
    url?: string | null;
}

interface PlacesBookmarkTimeInit {
    dateAdded: number;
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    lastModified: number;
    parentGuid: string;
    source: number;
    url?: string | null;
}

interface PlacesBookmarkTitleInit {
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    lastModified: number;
    parentGuid: string;
    source: number;
    title: string;
    url?: string | null;
}

interface PlacesBookmarkUrlInit {
    guid: string;
    id: number;
    isTagging: boolean;
    itemType: number;
    lastModified: number;
    parentGuid: string;
    source: number;
    url: string;
}

interface PlacesFaviconInit {
    faviconUrl: string;
    pageGuid: string;
    url: string;
}

interface PlacesVisitRemovedInit {
    isPartialVisistsRemoval?: boolean;
    isRemovedFromStore?: boolean;
    pageGuid: string;
    reason: number;
    transitionType?: number;
    url: string;
}

interface PlacesVisitTitleInit {
    pageGuid: string;
    title: string;
    url: string;
}

interface PlaneLayout {
    offset: number;
    stride: number;
}

interface PluginCrashedEventInit extends EventInit {
    gmpPlugin?: boolean;
    pluginDumpID?: string;
    pluginFilename?: string | null;
    pluginID?: number;
    pluginName?: string;
    submittedCrashReport?: boolean;
}

interface PointerEventInit extends MouseEventInit {
    coalescedEvents?: PointerEvent[];
    height?: number;
    isPrimary?: boolean;
    pointerId?: number;
    pointerType?: string;
    predictedEvents?: PointerEvent[];
    pressure?: number;
    tangentialPressure?: number;
    tiltX?: number;
    tiltY?: number;
    twist?: number;
    width?: number;
}

interface PopStateEventInit extends EventInit {
    state?: any;
}

interface PopupBlockedEventInit extends EventInit {
    popupWindowFeatures?: string;
    popupWindowName?: string;
    popupWindowURI?: URI | null;
    requestingWindow?: Window | null;
}

interface PopupPositionedEventInit extends EventInit {
    alignmentOffset?: number;
    alignmentPosition?: string;
    isAnchored?: boolean;
    popupAlignment?: string;
}

interface PositionOptions {
    enableHighAccuracy?: boolean;
    maximumAge?: number;
    timeout?: number;
}

interface PositionStateEventInit extends EventInit {
    duration: number;
    playbackRate: number;
    position: number;
}

interface ProcessActorChildOptions extends ProcessActorSidedOptions {
    observers?: string[];
}

interface ProcessActorOptions {
    child?: ProcessActorChildOptions;
    includeParent?: boolean;
    loadInDevToolsLoader?: boolean;
    parent?: ProcessActorSidedOptions;
    remoteTypes?: UTF8String[];
}

interface ProcessActorSidedOptions {
    esModuleURI?: string;
    moduleURI?: string;
}

interface ProfilerMarkerOptions {
    captureStack?: boolean;
    category?: string;
    innerWindowId?: number;
    startTime?: DOMHighResTimeStamp;
}

interface ProgressEventInit extends EventInit {
    lengthComputable?: boolean;
    loaded?: number;
    total?: number;
}

interface PromiseDebuggingStateHolder {
    reason?: any;
    state?: PromiseDebuggingState;
    value?: any;
}

interface PromiseRejectionEventInit extends EventInit {
    promise: Promise<any>;
    reason?: any;
}

interface PropertyDefinition {
    inherits: boolean;
    initialValue?: UTF8String;
    name: UTF8String;
    syntax?: UTF8String;
}

interface PropertyNamesOptions {
    includeAliases?: boolean;
    includeExperimentals?: boolean;
    includeShorthands?: boolean;
}

interface PropertyPref {
    name: string;
    pref: string;
}

interface PublicKeyCredentialCreationOptions {
    attestation?: string;
    authenticatorSelection?: AuthenticatorSelectionCriteria;
    challenge: BufferSource;
    excludeCredentials?: PublicKeyCredentialDescriptor[];
    extensions?: AuthenticationExtensionsClientInputs;
    pubKeyCredParams: PublicKeyCredentialParameters[];
    rp: PublicKeyCredentialRpEntity;
    timeout?: number;
    user: PublicKeyCredentialUserEntity;
}

interface PublicKeyCredentialCreationOptionsJSON {
    attestation?: string;
    attestationFormats?: string[];
    authenticatorSelection?: AuthenticatorSelectionCriteria;
    challenge: Base64URLString;
    excludeCredentials?: PublicKeyCredentialDescriptorJSON[];
    extensions?: AuthenticationExtensionsClientInputsJSON;
    hints?: string[];
    pubKeyCredParams: PublicKeyCredentialParameters[];
    rp: PublicKeyCredentialRpEntity;
    timeout?: number;
    user: PublicKeyCredentialUserEntityJSON;
}

interface PublicKeyCredentialDescriptor {
    id: BufferSource;
    transports?: string[];
    type: string;
}

interface PublicKeyCredentialDescriptorJSON {
    id: Base64URLString;
    transports?: string[];
    type: string;
}

interface PublicKeyCredentialEntity {
    name: string;
}

interface PublicKeyCredentialParameters {
    alg: COSEAlgorithmIdentifier;
    type: string;
}

interface PublicKeyCredentialRequestOptions {
    allowCredentials?: PublicKeyCredentialDescriptor[];
    challenge: BufferSource;
    extensions?: AuthenticationExtensionsClientInputs;
    rpId?: string;
    timeout?: number;
    userVerification?: string;
}

interface PublicKeyCredentialRequestOptionsJSON {
    allowCredentials?: PublicKeyCredentialDescriptorJSON[];
    attestation?: string;
    attestationFormats?: string[];
    challenge: Base64URLString;
    extensions?: AuthenticationExtensionsClientInputsJSON;
    hints?: string[];
    rpId?: string;
    timeout?: number;
    userVerification?: string;
}

interface PublicKeyCredentialRpEntity extends PublicKeyCredentialEntity {
    id?: string;
}

interface PublicKeyCredentialUserEntity extends PublicKeyCredentialEntity {
    displayName: string;
    id: BufferSource;
}

interface PublicKeyCredentialUserEntityJSON {
    displayName: string;
    id: Base64URLString;
    name: string;
}

interface PushEventInit extends ExtendableEventInit {
    data?: PushMessageDataInit;
}

interface PushSubscriptionInit {
    appServerKey?: BufferSource | null;
    authSecret?: ArrayBuffer | null;
    endpoint: string;
    expirationTime?: EpochTimeStamp | null;
    p256dhKey?: ArrayBuffer | null;
    scope: string;
}

interface PushSubscriptionJSON {
    endpoint?: string;
    expirationTime?: EpochTimeStamp | null;
    keys?: PushSubscriptionKeys;
}

interface PushSubscriptionKeys {
    auth?: string;
    p256dh?: string;
}

interface PushSubscriptionOptionsInit {
    applicationServerKey?: BufferSource | string | null;
}

interface QueuingStrategy {
    highWaterMark?: number;
    size?: QueuingStrategySize;
}

interface QueuingStrategyInit {
    highWaterMark: number;
}

interface RTCBandwidthEstimationInternal {
    maxPaddingBps?: number;
    pacerDelayMs?: number;
    receiveBandwidthBps?: number;
    rttMs?: number;
    sendBandwidthBps?: number;
    trackIdentifier: string;
}

interface RTCCodecStats extends RTCStats {
    channels?: number;
    clockRate?: number;
    codecType?: RTCCodecType;
    mimeType: string;
    payloadType: number;
    sdpFmtpLine?: string;
    transportId: string;
}

interface RTCConfiguration {
    bundlePolicy?: RTCBundlePolicy;
    certificates?: RTCCertificate[];
    iceServers?: RTCIceServer[];
    iceTransportPolicy?: RTCIceTransportPolicy;
    peerIdentity?: string | null;
    sdpSemantics?: string;
}

interface RTCConfigurationInternal {
    bundlePolicy?: RTCBundlePolicy;
    certificatesProvided: boolean;
    iceServers?: RTCIceServerInternal[];
    iceTransportPolicy?: RTCIceTransportPolicy;
    peerIdentityProvided: boolean;
    sdpSemantics?: string;
}

interface RTCDTMFToneChangeEventInit extends EventInit {
    tone?: string;
}

interface RTCDataChannelEventInit extends EventInit {
    channel: RTCDataChannel;
}

interface RTCDataChannelInit {
    id?: number;
    maxPacketLifeTime?: number;
    maxRetransmitTime?: number;
    maxRetransmits?: number;
    negotiated?: boolean;
    ordered?: boolean;
    protocol?: string;
}

interface RTCDataChannelStats extends RTCStats {
    bytesReceived?: number;
    bytesSent?: number;
    dataChannelIdentifier?: number;
    label?: string;
    messagesReceived?: number;
    messagesSent?: number;
    protocol?: string;
    state?: RTCDataChannelState;
}

interface RTCEncodedAudioFrameMetadata {
    contributingSources?: number[];
    payloadType?: number;
    sequenceNumber?: number;
    synchronizationSource?: number;
}

interface RTCEncodedVideoFrameMetadata {
    contributingSources?: number[];
    dependencies?: number[];
    frameId?: number;
    height?: number;
    payloadType?: number;
    spatialIndex?: number;
    synchronizationSource?: number;
    temporalIndex?: number;
    timestamp?: number;
    width?: number;
}

interface RTCFecParameters {
    ssrc?: number;
}

interface RTCIceCandidateInit {
    candidate?: string;
    sdpMLineIndex?: number | null;
    sdpMid?: string | null;
    usernameFragment?: string | null;
}

interface RTCIceCandidatePairStats extends RTCStats {
    bytesReceived?: number;
    bytesSent?: number;
    componentId?: number;
    lastPacketReceivedTimestamp?: DOMHighResTimeStamp;
    lastPacketSentTimestamp?: DOMHighResTimeStamp;
    localCandidateId?: string;
    nominated?: boolean;
    priority?: number;
    readable?: boolean;
    remoteCandidateId?: string;
    selected?: boolean;
    state?: RTCStatsIceCandidatePairState;
    transportId?: string;
    writable?: boolean;
}

interface RTCIceCandidateStats extends RTCStats {
    address?: string;
    candidateType?: RTCIceCandidateType;
    port?: number;
    priority?: number;
    protocol?: string;
    proxied?: string;
    relayProtocol?: string;
    transportId?: string;
}

interface RTCIceServer {
    credential?: string;
    credentialType?: RTCIceCredentialType;
    url?: string;
    urls?: string | string[];
    username?: string;
}

interface RTCIceServerInternal {
    credentialProvided: boolean;
    urls?: string[];
    userNameProvided: boolean;
}

interface RTCIdentityAssertion {
    idp?: string;
    name?: string;
}

interface RTCIdentityAssertionResult {
    assertion: string;
    idp: RTCIdentityProviderDetails;
}

interface RTCIdentityProvider {
    generateAssertion: GenerateAssertionCallback;
    validateAssertion: ValidateAssertionCallback;
}

interface RTCIdentityProviderDetails {
    domain: string;
    protocol?: string;
}

interface RTCIdentityProviderOptions {
    peerIdentity?: string;
    protocol?: string;
    usernameHint?: string;
}

interface RTCIdentityValidationResult {
    contents: string;
    identity: string;
}

interface RTCInboundRtpStreamStats extends RTCReceivedRtpStreamStats {
    audioLevel?: number;
    bytesReceived?: number;
    concealedSamples?: number;
    concealmentEvents?: number;
    fecPacketsDiscarded?: number;
    fecPacketsReceived?: number;
    firCount?: number;
    frameHeight?: number;
    frameWidth?: number;
    framesDecoded?: number;
    framesDropped?: number;
    framesPerSecond?: number;
    framesReceived?: number;
    headerBytesReceived?: number;
    insertedSamplesForDeceleration?: number;
    jitterBufferDelay?: number;
    jitterBufferEmittedCount?: number;
    lastPacketReceivedTimestamp?: DOMHighResTimeStamp;
    nackCount?: number;
    pliCount?: number;
    qpSum?: number;
    remoteId?: string;
    removedSamplesForAcceleration?: number;
    silentConcealedSamples?: number;
    totalAudioEnergy?: number;
    totalDecodeTime?: number;
    totalInterFrameDelay?: number;
    totalProcessingDelay?: number;
    totalSamplesDuration?: number;
    totalSamplesReceived?: number;
    totalSquaredInterFrameDelay?: number;
    trackIdentifier: string;
}

interface RTCMediaSourceStats extends RTCStats {
    kind: string;
    trackIdentifier: string;
}

interface RTCOfferAnswerOptions {
}

interface RTCOfferOptions extends RTCOfferAnswerOptions {
    iceRestart?: boolean;
    offerToReceiveAudio?: boolean;
    offerToReceiveVideo?: boolean;
}

interface RTCOutboundRtpStreamStats extends RTCSentRtpStreamStats {
    firCount?: number;
    frameHeight?: number;
    frameWidth?: number;
    framesEncoded?: number;
    framesPerSecond?: number;
    framesSent?: number;
    headerBytesSent?: number;
    hugeFramesSent?: number;
    nackCount?: number;
    pliCount?: number;
    qpSum?: number;
    remoteId?: string;
    retransmittedBytesSent?: number;
    retransmittedPacketsSent?: number;
    totalEncodeTime?: number;
    totalEncodedBytesTarget?: number;
}

interface RTCPeerConnectionIceEventInit extends EventInit {
    candidate?: RTCIceCandidate | null;
}

interface RTCPeerConnectionStats extends RTCStats {
    dataChannelsClosed?: number;
    dataChannelsOpened?: number;
}

interface RTCRTPContributingSourceStats extends RTCStats {
    contributorSsrc?: number;
    inboundRtpStreamId?: string;
}

interface RTCReceivedRtpStreamStats extends RTCRtpStreamStats {
    discardedPackets?: number;
    jitter?: number;
    packetsDiscarded?: number;
    packetsLost?: number;
    packetsReceived?: number;
}

interface RTCRemoteInboundRtpStreamStats extends RTCReceivedRtpStreamStats {
    fractionLost?: number;
    localId?: string;
    roundTripTime?: number;
    roundTripTimeMeasurements?: number;
    totalRoundTripTime?: number;
}

interface RTCRemoteOutboundRtpStreamStats extends RTCSentRtpStreamStats {
    localId?: string;
    remoteTimestamp?: DOMHighResTimeStamp;
}

interface RTCRtcpParameters {
    cname?: string;
    reducedSize?: boolean;
}

interface RTCRtpCapabilities {
    codecs: RTCRtpCodecCapability[];
    headerExtensions: RTCRtpHeaderExtensionCapability[];
}

interface RTCRtpCodec {
    channels?: number;
    clockRate: number;
    mimeType: string;
    sdpFmtpLine?: string;
}

interface RTCRtpCodecCapability extends RTCRtpCodec {
}

interface RTCRtpCodecParameters {
    channels?: number;
    clockRate?: number;
    mimeType?: string;
    payloadType?: number;
    sdpFmtpLine?: string;
}

interface RTCRtpContributingSource {
    audioLevel?: number;
    rtpTimestamp: number;
    source: number;
    timestamp: DOMHighResTimeStamp;
}

interface RTCRtpEncodingParameters {
    active?: boolean;
    fec?: RTCFecParameters;
    maxBitrate?: number;
    maxFramerate?: number;
    priority?: RTCPriorityType;
    rid?: string;
    rtx?: RTCRtxParameters;
    scaleResolutionDownBy?: number;
    ssrc?: number;
}

interface RTCRtpHeaderExtensionCapability {
    uri: string;
}

interface RTCRtpHeaderExtensionParameters {
    encrypted?: boolean;
    id?: number;
    uri?: string;
}

interface RTCRtpParameters {
    codecs?: RTCRtpCodecParameters[];
    headerExtensions?: RTCRtpHeaderExtensionParameters[];
    rtcp?: RTCRtcpParameters;
}

interface RTCRtpSendParameters extends RTCRtpParameters {
    encodings: RTCRtpEncodingParameters[];
    transactionId?: string;
}

interface RTCRtpStreamStats extends RTCStats {
    codecId?: string;
    kind: string;
    mediaType?: string;
    ssrc: number;
    transportId?: string;
}

interface RTCRtpSynchronizationSource extends RTCRtpContributingSource {
    voiceActivityFlag?: boolean | null;
}

interface RTCRtpTransceiverInit {
    direction?: RTCRtpTransceiverDirection;
    sendEncodings?: RTCRtpEncodingParameters[];
    streams?: MediaStream[];
}

interface RTCRtxParameters {
    ssrc?: number;
}

interface RTCSdpHistoryEntryInternal {
    errors?: RTCSdpParsingErrorInternal[];
    isLocal: boolean;
    sdp: string;
    timestamp: DOMHighResTimeStamp;
}

interface RTCSdpHistoryInternal {
    pcid: string;
    sdpHistory?: RTCSdpHistoryEntryInternal[];
}

interface RTCSdpParsingErrorInternal {
    error: string;
    lineNumber: number;
}

interface RTCSentRtpStreamStats extends RTCRtpStreamStats {
    bytesSent?: number;
    packetsSent?: number;
}

interface RTCSessionDescriptionInit {
    sdp?: string;
    type?: RTCSdpType;
}

interface RTCStats {
    id?: string;
    timestamp?: DOMHighResTimeStamp;
    type?: RTCStatsType;
}

interface RTCStatsCollection {
    bandwidthEstimations?: RTCBandwidthEstimationInternal[];
    codecStats?: RTCCodecStats[];
    dataChannelStats?: RTCDataChannelStats[];
    iceCandidatePairStats?: RTCIceCandidatePairStats[];
    iceCandidateStats?: RTCIceCandidateStats[];
    inboundRtpStreamStats?: RTCInboundRtpStreamStats[];
    mediaSourceStats?: RTCMediaSourceStats[];
    outboundRtpStreamStats?: RTCOutboundRtpStreamStats[];
    peerConnectionStats?: RTCPeerConnectionStats[];
    rawLocalCandidates?: string[];
    rawRemoteCandidates?: string[];
    remoteInboundRtpStreamStats?: RTCRemoteInboundRtpStreamStats[];
    remoteOutboundRtpStreamStats?: RTCRemoteOutboundRtpStreamStats[];
    rtpContributingSourceStats?: RTCRTPContributingSourceStats[];
    trickledIceCandidateStats?: RTCIceCandidateStats[];
    videoFrameHistories?: RTCVideoFrameHistoryInternal[];
    videoSourceStats?: RTCVideoSourceStats[];
}

interface RTCStatsReportInternal extends RTCStatsCollection {
    browserId: number;
    callDurationMs?: number;
    closed: boolean;
    configuration?: RTCConfigurationInternal;
    iceRestarts: number;
    iceRollbacks: number;
    jsepSessionErrors?: string;
    offerer?: boolean;
    pcid: string;
    sdpHistory?: RTCSdpHistoryEntryInternal[];
    timestamp: DOMHighResTimeStamp;
}

interface RTCTrackEventInit extends EventInit {
    receiver: RTCRtpReceiver;
    streams?: MediaStream[];
    track: MediaStreamTrack;
    transceiver: RTCRtpTransceiver;
}

interface RTCTransformEventInit extends EventInit {
    transformer: RTCRtpScriptTransformer;
}

interface RTCVideoFrameHistoryEntryInternal {
    consecutiveFrames: number;
    firstFrameTimestamp: DOMHighResTimeStamp;
    height: number;
    lastFrameTimestamp: DOMHighResTimeStamp;
    localSsrc: number;
    remoteSsrc: number;
    rotationAngle: number;
    width: number;
}

interface RTCVideoFrameHistoryInternal {
    entries?: RTCVideoFrameHistoryEntryInternal[];
    trackIdentifier: string;
}

interface RTCVideoSourceStats extends RTCMediaSourceStats {
    frames?: number;
    framesPerSecond?: number;
    height?: number;
    width?: number;
}

interface ReadOptions extends ReadUTF8Options {
    maxBytes?: number | null;
    offset?: number;
}

interface ReadUTF8Options {
    decompress?: boolean;
}

interface ReadableStreamGetReaderOptions {
    mode?: ReadableStreamReaderMode;
}

interface ReadableStreamIteratorOptions {
    preventCancel?: boolean;
}

interface ReadableStreamReadResult {
    done?: boolean;
    value?: any;
}

interface ReadableWritablePair {
    readable: ReadableStream;
    writable: WritableStream;
}

interface ReceiveMessageArgument {
    data?: any;
    json?: any;
    name: string;
    ports?: MessagePort[];
    sync: boolean;
    target: nsISupports;
    targetFrameLoader?: FrameLoader;
}

interface RegistrationOptions {
    scope?: string;
    updateViaCache?: ServiceWorkerUpdateViaCache;
}

interface RemotenessOptions {
    pendingSwitchID?: number;
    remoteType: UTF8String | null;
    switchingInProgressLoad?: boolean;
}

interface RemoveOptions {
    ignoreAbsent?: boolean;
    recursive?: boolean;
    retryReadonly?: boolean;
}

interface ReportingObserverOptions {
    buffered?: boolean;
    types?: string[];
}

interface RequestInit {
    body?: BodyInit | null;
    cache?: RequestCache;
    credentials?: RequestCredentials;
    headers?: HeadersInit;
    integrity?: string;
    method?: string;
    mode?: RequestMode;
    mozErrors?: boolean;
    observe?: ObserverCallback;
    redirect?: RequestRedirect;
    referrer?: string;
    referrerPolicy?: ReferrerPolicy;
    signal?: AbortSignal | null;
}

interface ResizeObserverOptions {
    box?: ResizeObserverBoxOptions;
}

interface ResourceId {
    optional?: boolean;
    path: UTF8String;
}

interface ResponseInit {
    headers?: HeadersInit;
    status?: number;
    statusText?: string;
}

interface SVGBoundingBoxOptions {
    clipped?: boolean;
    fill?: boolean;
    markers?: boolean;
    stroke?: boolean;
}

interface SanitizerAttributeNamespace {
    name: string;
    namespace?: string | null;
}

interface SanitizerConfig {
    attributes?: SanitizerAttribute[];
    comments?: boolean;
    customElements?: boolean;
    elements?: SanitizerElementWithAttributes[];
    removeAttributes?: SanitizerAttribute[];
    removeElements?: SanitizerElement[];
    replaceWithChildrenElements?: SanitizerElement[];
    unknownMarkup?: boolean;
}

interface SanitizerElementNamespace {
    name: string;
    namespace?: string | null;
}

interface SanitizerElementNamespaceWithAttributes extends SanitizerElementNamespace {
    attributes?: SanitizerAttribute[];
    removeAttributes?: SanitizerAttribute[];
}

interface SchedulerPostTaskOptions {
    delay?: number;
    priority?: TaskPriority;
    signal?: AbortSignal;
}

interface ScrollIntoViewOptions extends ScrollOptions {
    block?: ScrollLogicalPosition;
    inline?: ScrollLogicalPosition;
}

interface ScrollOptions {
    behavior?: ScrollBehavior;
}

interface ScrollToOptions extends ScrollOptions {
    left?: number;
    top?: number;
}

interface ScrollViewChangeEventInit extends EventInit {
    state?: ScrollState;
}

interface SecurityPolicyViolationEventInit extends EventInit {
    blockedURI?: string;
    columnNumber?: number;
    disposition?: SecurityPolicyViolationEventDisposition;
    documentURI?: string;
    effectiveDirective?: string;
    lineNumber?: number;
    originalPolicy?: string;
    referrer?: string;
    sample?: string;
    sourceFile?: string;
    statusCode?: number;
    violatedDirective?: string;
}

interface SelectorWarning {
    index: number;
    kind: SelectorWarningKind;
}

interface ServerSocketOptions {
    binaryType?: TCPSocketBinaryType;
}

interface SetHTMLOptions {
    sanitizer?: SanitizerConfig;
}

interface ShadowRootInit {
    clonable?: boolean;
    delegatesFocus?: boolean;
    mode: ShadowRootMode;
    slotAssignment?: SlotAssignmentMode;
}

interface ShareData {
    files?: File[];
    text?: string;
    title?: string;
    url?: string;
}

interface SizeToContentConstraints {
    maxHeight?: number;
    maxWidth?: number;
    prefWidth?: number;
}

interface SocketOptions {
    binaryType?: TCPSocketBinaryType;
    useSecureTransport?: boolean;
}

interface SpeechRecognitionErrorInit extends EventInit {
    error?: SpeechRecognitionErrorCode;
    message?: string;
}

interface SpeechRecognitionEventInit extends EventInit {
    emma?: Document | null;
    interpretation?: any;
    resultIndex?: number;
    results?: SpeechRecognitionResultList | null;
}

interface SpeechSynthesisErrorEventInit extends SpeechSynthesisEventInit {
    error: SpeechSynthesisErrorCode;
}

interface SpeechSynthesisEventInit extends EventInit {
    charIndex?: number;
    charLength?: number | null;
    elapsedTime?: number;
    name?: string;
    utterance: SpeechSynthesisUtterance;
}

interface SplitRelativeOptions {
    allowCurrentDir?: boolean;
    allowEmpty?: boolean;
    allowParentDir?: boolean;
}

interface StaticRangeInit {
    endContainer: Node;
    endOffset: number;
    startContainer: Node;
    startOffset: number;
}

interface StereoPannerOptions extends AudioNodeOptions {
    pan?: number;
}

interface StorageEstimate {
    quota?: number;
    usage?: number;
}

interface StorageEventInit extends EventInit {
    key?: string | null;
    newValue?: string | null;
    oldValue?: string | null;
    storageArea?: Storage | null;
    url?: string;
}

interface StreamFilterDataEventInit extends EventInit {
    data: ArrayBuffer;
}

interface StreamPipeOptions {
    preventAbort?: boolean;
    preventCancel?: boolean;
    preventClose?: boolean;
    signal?: AbortSignal;
}

interface StructuredSerializeOptions {
    transfer?: any[];
}

interface StyleSheetApplicableStateChangeEventInit extends EventInit {
    applicable?: boolean;
    stylesheet?: CSSStyleSheet | null;
}

interface StyleSheetRemovedEventInit extends EventInit {
    stylesheet?: CSSStyleSheet | null;
}

interface SubmitEventInit extends EventInit {
    submitter?: HTMLElement | null;
}

interface SupportsOptions {
    chrome?: boolean;
    quirks?: boolean;
    userAgent?: boolean;
}

interface SvcOutputMetadata {
    temporalLayerId?: number;
}

interface TCPServerSocketEventInit extends EventInit {
    socket?: TCPSocket | null;
}

interface TCPSocketErrorEventInit extends EventInit {
    errorCode?: number;
    message?: string;
    name?: string;
}

interface TCPSocketEventInit extends EventInit {
    data?: any;
}

interface TaskControllerInit {
    priority?: TaskPriority;
}

interface TaskPriorityChangeEventInit extends EventInit {
    previousPriority: TaskPriority;
}

interface TelemetryStopwatchOptions {
    inSeconds?: boolean;
}

interface TestInterfaceAsyncIterableSingleOptions {
    failToInit?: boolean;
}

interface TestInterfaceAsyncIteratorOptions {
    blockingPromises?: Promise<any>[];
    failNextAfter?: number;
    multiplier?: number;
    throwFromNext?: boolean;
    throwFromReturn?: TestThrowingCallback;
}

interface TestInterfaceJSDictionary {
    anyMember?: any;
    anySequenceMember?: any[];
    innerDictionary?: TestInterfaceJSDictionary2;
    objectMember?: any;
    objectOrStringMember?: any;
    objectRecordMember?: Record<string, any>;
}

interface TestInterfaceJSDictionary2 {
    innerObject?: any;
}

interface TestInterfaceJSUnionableDictionary {
    anyMember?: any;
    objectMember?: any;
}

interface TextDecodeOptions {
    stream?: boolean;
}

interface TextDecoderOptions {
    fatal?: boolean;
    ignoreBOM?: boolean;
}

interface TextEncoderEncodeIntoResult {
    read?: number;
    written?: number;
}

interface ThreadInfoDictionary {
    cpuCycleCount?: number;
    cpuTime?: number;
    name?: string;
    tid?: number;
}

interface ToggleEventInit extends EventInit {
    newState?: string;
    oldState?: string;
}

interface TouchEventInit extends EventModifierInit {
    changedTouches?: Touch[];
    targetTouches?: Touch[];
    touches?: Touch[];
}

interface TouchInit {
    clientX?: number;
    clientY?: number;
    force?: number;
    identifier: number;
    pageX?: number;
    pageY?: number;
    radiusX?: number;
    radiusY?: number;
    rotationAngle?: number;
    screenX?: number;
    screenY?: number;
    target: EventTarget;
}

interface TrackBuffersManagerDebugInfo {
    bufferSize?: number;
    evictable?: number;
    nextGetSampleIndex?: number;
    nextInsertionIndex?: number;
    nextSampleTime?: number;
    numSamples?: number;
    ranges?: BufferRange[];
    type?: string;
}

interface TrackEventInit extends EventInit {
    track?: VideoTrack | AudioTrack | TextTrack | null;
}

interface TransitionEventInit extends EventInit {
    elapsedTime?: number;
    propertyName?: string;
    pseudoElement?: string;
}

interface TreeCellInfo {
    childElt?: string;
    col?: TreeColumn | null;
    row?: number;
}

interface UDPMessageEventInit extends EventInit {
    data?: any;
    remoteAddress?: string;
    remotePort?: number;
}

interface UDPOptions {
    addressReuse?: boolean;
    localAddress?: string;
    localPort?: number;
    loopback?: boolean;
    remoteAddress?: string;
    remotePort?: number;
}

interface UIEventInit extends EventInit {
    detail?: number;
    view?: Window | null;
}

interface UniFFIScaffoldingCallResult {
    code: UniFFIScaffoldingCallCode;
    data?: UniFFIScaffoldingType;
    internalErrorMessage?: string;
}

interface UserProximityEventInit extends EventInit {
    near?: boolean;
}

interface UtilityActorsDictionary {
    actorName?: WebIDLUtilityActorName;
}

interface VRDisplayEventInit extends EventInit {
    display: VRDisplay;
    reason?: VRDisplayEventReason;
}

interface VRLayer {
    leftBounds?: number[] | Float32Array;
    rightBounds?: number[] | Float32Array;
    source?: HTMLCanvasElement | null;
}

interface ValidityStateFlags {
    badInput?: boolean;
    customError?: boolean;
    patternMismatch?: boolean;
    rangeOverflow?: boolean;
    rangeUnderflow?: boolean;
    stepMismatch?: boolean;
    tooLong?: boolean;
    tooShort?: boolean;
    typeMismatch?: boolean;
    valueMissing?: boolean;
}

interface VideoColorSpaceInit {
    fullRange?: boolean | null;
    matrix?: VideoMatrixCoefficients | null;
    primaries?: VideoColorPrimaries | null;
    transfer?: VideoTransferCharacteristics | null;
}

interface VideoConfiguration {
    bitrate: number;
    colorGamut?: ColorGamut;
    contentType: string;
    framerate: number;
    hasAlphaChannel?: boolean;
    hdrMetadataType?: HdrMetadataType;
    height: number;
    scalabilityMode?: string;
    transferFunction?: TransferFunction;
    width: number;
}

interface VideoDecoderConfig {
    codec: string;
    codedHeight?: number;
    codedWidth?: number;
    colorSpace?: VideoColorSpaceInit;
    description?: ArrayBufferView | ArrayBuffer;
    displayAspectHeight?: number;
    displayAspectWidth?: number;
    hardwareAcceleration?: HardwareAcceleration;
    optimizeForLatency?: boolean;
}

interface VideoDecoderInit {
    error: WebCodecsErrorCallback;
    output: VideoFrameOutputCallback;
}

interface VideoDecoderSupport {
    config?: VideoDecoderConfig;
    supported?: boolean;
}

interface VideoEncoderConfig {
    alpha?: AlphaOption;
    avc?: AvcEncoderConfig;
    bitrate?: number;
    bitrateMode?: VideoEncoderBitrateMode;
    codec: string;
    contentHint?: string;
    displayHeight?: number;
    displayWidth?: number;
    framerate?: number;
    hardwareAcceleration?: HardwareAcceleration;
    height: number;
    latencyMode?: LatencyMode;
    scalabilityMode?: string;
    width: number;
}

interface VideoEncoderEncodeOptions {
    avc?: VideoEncoderEncodeOptionsForAvc;
    keyFrame?: boolean;
}

interface VideoEncoderEncodeOptionsForAvc {
    quantizer?: number | null;
}

interface VideoEncoderInit {
    error: WebCodecsErrorCallback;
    output: EncodedVideoChunkOutputCallback;
}

interface VideoEncoderSupport {
    config?: VideoEncoderConfig;
    supported?: boolean;
}

interface VideoFrameBufferInit {
    codedHeight: number;
    codedWidth: number;
    colorSpace?: VideoColorSpaceInit;
    displayHeight?: number;
    displayWidth?: number;
    duration?: number;
    format: VideoPixelFormat;
    layout?: PlaneLayout[];
    timestamp: number;
    visibleRect?: DOMRectInit;
}

interface VideoFrameCopyToOptions {
    layout?: PlaneLayout[];
    rect?: DOMRectInit;
}

interface VideoFrameInit {
    alpha?: AlphaOption;
    displayHeight?: number;
    displayWidth?: number;
    duration?: number;
    timestamp?: number;
    visibleRect?: DOMRectInit;
}

interface VideoSinkDebugInfo {
    endPromiseHolderIsEmpty?: boolean;
    finished?: boolean;
    hasVideo?: boolean;
    isPlaying?: boolean;
    isStarted?: boolean;
    size?: number;
    videoFrameEndTime?: number;
    videoSinkEndRequestExists?: boolean;
}

interface WaveShaperOptions extends AudioNodeOptions {
    curve?: number[] | Float32Array;
    oversample?: OverSampleType;
}

interface WebAccessibleResourceInit {
    extension_ids?: string[] | null;
    matches?: MatchPatternSetOrStringSequence | null;
    resources: MatchGlobOrString[];
}

interface WebExtensionContentScriptInit extends MozDocumentMatcherInit {
    cssPaths?: string[];
    jsPaths?: string[];
    runAt?: ContentScriptRunAt;
}

interface WebExtensionInit {
    allowedOrigins: MatchPatternSetOrStringSequence;
    backgroundScripts?: string[] | null;
    backgroundTypeModule?: boolean;
    backgroundWorkerScript?: string | null;
    baseURL: string;
    contentScripts?: WebExtensionContentScriptInit[];
    extensionPageCSP?: string | null;
    id: string;
    ignoreQuarantine?: boolean;
    isPrivileged?: boolean;
    localizeCallback: WebExtensionLocalizeCallback;
    manifestVersion?: number;
    mozExtensionHostname: string;
    name?: string;
    permissions?: string[];
    readyPromise?: Promise<WebExtensionPolicy | null>;
    temporarilyInstalled?: boolean;
    type?: string;
    webAccessibleResources?: WebAccessibleResourceInit[];
}

interface WebGLContextAttributes {
    alpha?: GLboolean;
    antialias?: GLboolean;
    colorSpace?: PredefinedColorSpace;
    depth?: GLboolean;
    failIfMajorPerformanceCaveat?: GLboolean;
    powerPreference?: WebGLPowerPreference;
    premultipliedAlpha?: GLboolean;
    preserveDrawingBuffer?: GLboolean;
    stencil?: GLboolean;
    xrCompatible?: boolean;
}

interface WebGLContextEventInit extends EventInit {
    statusMessage?: string;
}

interface WebTransportCloseInfo {
    closeCode?: number;
    reason?: UTF8String;
}

interface WebTransportDatagramStats {
    droppedIncoming?: number;
    expiredOutgoing?: number;
    lostOutgoing?: number;
    timestamp?: DOMHighResTimeStamp;
}

interface WebTransportErrorInit {
    message?: string;
    streamErrorCode?: number;
}

interface WebTransportHash {
    algorithm?: string;
    value?: BufferSource;
}

interface WebTransportOptions {
    allowPooling?: boolean;
    congestionControl?: WebTransportCongestionControl;
    requireUnreliable?: boolean;
    serverCertificateHashes?: WebTransportHash[];
}

interface WebTransportReceiveStreamStats {
    bytesRead?: number;
    bytesReceived?: number;
    timestamp?: DOMHighResTimeStamp;
}

interface WebTransportSendStreamOptions {
    sendOrder?: number | null;
}

interface WebTransportSendStreamStats {
    bytesAcknowledged?: number;
    bytesSent?: number;
    bytesWritten?: number;
    timestamp?: DOMHighResTimeStamp;
}

interface WebTransportStats {
    bytesReceived?: number;
    bytesSent?: number;
    datagrams?: WebTransportDatagramStats;
    minRtt?: DOMHighResTimeStamp;
    numIncomingStreamsCreated?: number;
    numOutgoingStreamsCreated?: number;
    packetsLost?: number;
    packetsReceived?: number;
    packetsSent?: number;
    rttVariation?: DOMHighResTimeStamp;
    smoothedRtt?: DOMHighResTimeStamp;
    timestamp?: DOMHighResTimeStamp;
}

interface WebrtcGlobalMediaContext {
    hasH264Hardware: boolean;
}

interface WebrtcGlobalStatisticsReport {
    reports?: RTCStatsReportInternal[];
    sdpHistories?: RTCSdpHistoryInternal[];
}

interface WheelEventInit extends MouseEventInit {
    deltaMode?: number;
    deltaX?: number;
    deltaY?: number;
    deltaZ?: number;
}

interface WindowActorChildOptions extends WindowActorSidedOptions {
    events?: Record<string, WindowActorEventListenerOptions>;
    observers?: string[];
}

interface WindowActorEventListenerOptions extends AddEventListenerOptions {
    createActor?: boolean;
}

interface WindowActorOptions {
    allFrames?: boolean;
    child?: WindowActorChildOptions;
    includeChrome?: boolean;
    matches?: string[];
    messageManagerGroups?: string[];
    parent?: WindowActorSidedOptions;
    remoteTypes?: UTF8String[];
}

interface WindowActorSidedOptions {
    esModuleURI?: string;
    moduleURI?: string;
}

interface WindowInfoDictionary {
    documentTitle?: string;
    documentURI?: URI | null;
    isInProcess?: boolean;
    isProcessRoot?: boolean;
    outerWindowId?: number;
}

interface WindowPostMessageOptions extends StructuredSerializeOptions {
    targetOrigin?: string;
}

interface WindowsFileAttributes {
    hidden?: boolean;
    readOnly?: boolean;
    system?: boolean;
}

interface Wireframe {
    canvasBackground?: number;
    rects?: WireframeTaggedRect[];
    version?: number;
}

interface WireframeTaggedRect {
    color?: number;
    height?: number;
    node?: Node | null;
    type?: WireframeRectType;
    width?: number;
    x?: number;
    y?: number;
}

interface WorkerOptions {
    credentials?: RequestCredentials;
    name?: string;
    type?: WorkerType;
}

interface WorkletOptions {
    credentials?: RequestCredentials;
}

interface WriteOptions {
    backupFile?: string;
    compress?: boolean;
    flush?: boolean;
    mode?: WriteMode;
    tmpPath?: string;
}

interface WriteParams {
    data?: BufferSource | Blob | UTF8String | null;
    position?: number | null;
    size?: number | null;
    type: WriteCommandType;
}

interface XRInputSourceEventInit extends EventInit {
    frame: XRFrame;
    inputSource: XRInputSource;
}

interface XRInputSourcesChangeEventInit extends EventInit {
    added: XRInputSource[];
    removed: XRInputSource[];
    session: XRSession;
}

interface XRReferenceSpaceEventInit extends EventInit {
    referenceSpace: XRReferenceSpace;
    transform?: XRRigidTransform | null;
}

interface XRRenderStateInit {
    baseLayer?: XRWebGLLayer | null;
    depthFar?: number;
    depthNear?: number;
    inlineVerticalFieldOfView?: number;
}

interface XRSessionEventInit extends EventInit {
    session: XRSession;
}

interface XRSessionInit {
    optionalFeatures?: any[];
    requiredFeatures?: any[];
}

interface XRWebGLLayerInit {
    alpha?: boolean;
    antialias?: boolean;
    depth?: boolean;
    framebufferScaleFactor?: number;
    ignoreDepthValues?: boolean;
    stencil?: boolean;
}

interface addonInstallOptions {
    hash?: string | null;
    url: string;
}

type EventListener = ((event: Event) => void) | { handleEvent(event: Event): void; };

type MessageListener = ((argument: ReceiveMessageArgument) => any) | { receiveMessage(argument: ReceiveMessageArgument): any; };

type MozDocumentCallback = ((matcher: MozDocumentMatcher, window: WindowProxy) => void) | { onNewDocument(matcher: MozDocumentMatcher, window: WindowProxy): void; };

type NodeFilter = ((node: Node) => number) | { acceptNode(node: Node): number; };

declare var NodeFilter: {
    readonly FILTER_ACCEPT: 1;
    readonly FILTER_REJECT: 2;
    readonly FILTER_SKIP: 3;
    readonly SHOW_ALL: 0xFFFFFFFF;
    readonly SHOW_ELEMENT: 0x1;
    readonly SHOW_ATTRIBUTE: 0x2;
    readonly SHOW_TEXT: 0x4;
    readonly SHOW_CDATA_SECTION: 0x8;
    readonly SHOW_ENTITY_REFERENCE: 0x10;
    readonly SHOW_ENTITY: 0x20;
    readonly SHOW_PROCESSING_INSTRUCTION: 0x40;
    readonly SHOW_COMMENT: 0x80;
    readonly SHOW_DOCUMENT: 0x100;
    readonly SHOW_DOCUMENT_TYPE: 0x200;
    readonly SHOW_DOCUMENT_FRAGMENT: 0x400;
    readonly SHOW_NOTATION: 0x800;
};

type ObserverCallback = ((observer: FetchObserver) => void) | { handleEvent(observer: FetchObserver): void; };

type UncaughtRejectionObserver = ((p: any) => boolean) | { onLeftUncaught(p: any): boolean; };

type XPathNSResolver = ((prefix: string | null) => string | null) | { lookupNamespaceURI(prefix: string | null): string | null; };

/**
 * The ANGLE_instanced_arrays extension is part of the WebGL API and allows to draw the same object, or groups of similar objects multiple times, if they share the same vertex data, primitive count and type.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays)
 */
interface ANGLE_instanced_arrays {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawArraysInstancedANGLE) */
    drawArraysInstancedANGLE(mode: GLenum, first: GLint, count: GLsizei, primcount: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/drawElementsInstancedANGLE) */
    drawElementsInstancedANGLE(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr, primcount: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ANGLE_instanced_arrays/vertexAttribDivisorANGLE) */
    vertexAttribDivisorANGLE(index: GLuint, divisor: GLuint): void;
    readonly VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: 0x88FE;
}

/**
 * A controller object that allows you to abort one or more DOM requests as and when desired.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortController)
 */
interface AbortController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortController/signal) */
    readonly signal: AbortSignal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortController/abort) */
    abort(reason?: any): void;
}

declare var AbortController: {
    prototype: AbortController;
    new(): AbortController;
    isInstance(obj): obj is AbortController;
};

interface AbortSignalEventMap {
    "abort": Event;
}

/**
 * A signal object that allows you to communicate with a DOM request (such as a Fetch) and abort it if required via an AbortController object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal)
 */
interface AbortSignal extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/aborted) */
    readonly aborted: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/abort_event) */
    onabort: ((this: AbortSignal, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/reason) */
    readonly reason: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/throwIfAborted) */
    throwIfAborted(): void;
    addEventListener<K extends keyof AbortSignalEventMap>(type: K, listener: (this: AbortSignal, ev: AbortSignalEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AbortSignalEventMap>(type: K, listener: (this: AbortSignal, ev: AbortSignalEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var AbortSignal: {
    prototype: AbortSignal;
    new(): AbortSignal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/abort_static) */
    abort(reason?: any): AbortSignal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbortSignal/timeout_static) */
    timeout(milliseconds: number): AbortSignal;
    isInstance(obj): obj is AbortSignal;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange) */
interface AbstractRange {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange/collapsed) */
    readonly collapsed: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange/endContainer) */
    readonly endContainer: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange/endOffset) */
    readonly endOffset: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange/startContainer) */
    readonly startContainer: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AbstractRange/startOffset) */
    readonly startOffset: number;
}

declare var AbstractRange: {
    prototype: AbstractRange;
    new(): AbstractRange;
    isInstance(obj): obj is AbstractRange;
};

interface AbstractWorkerEventMap {
    "error": ErrorEvent;
}

interface AbstractWorker {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker/error_event) */
    onerror: OnErrorEventHandler;
    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: AbstractWorker, ev: AbstractWorkerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

interface AccessibilityRole {
    role: string | null;
}

interface AccessibleNode {
    readonly DOMNode: Node | null;
    activeDescendant: AccessibleNode | null;
    atomic: boolean | null;
    readonly attributes: string[];
    autocomplete: string | null;
    busy: boolean | null;
    checked: string | null;
    colCount: number | null;
    colIndex: number | null;
    colSpan: number | null;
    readonly computedRole: string;
    current: string | null;
    details: AccessibleNode | null;
    disabled: boolean | null;
    errorMessage: AccessibleNode | null;
    expanded: boolean | null;
    hasPopUp: string | null;
    hidden: boolean | null;
    invalid: string | null;
    keyShortcuts: string | null;
    label: string | null;
    level: number | null;
    live: string | null;
    modal: boolean | null;
    multiline: boolean | null;
    multiselectable: boolean | null;
    orientation: string | null;
    placeholder: string | null;
    posInSet: number | null;
    pressed: string | null;
    readOnly: boolean | null;
    relevant: string | null;
    required: boolean | null;
    role: string | null;
    roleDescription: string | null;
    rowCount: number | null;
    rowIndex: number | null;
    rowSpan: number | null;
    selected: boolean | null;
    setSize: number | null;
    sort: string | null;
    readonly states: string[];
    valueMax: number | null;
    valueMin: number | null;
    valueNow: number | null;
    valueText: string | null;
    get(attribute: string): any;
    has(...attributes: string[]): boolean;
    is(...states: string[]): boolean;
}

declare var AccessibleNode: {
    prototype: AccessibleNode;
    new(): AccessibleNode;
    isInstance(obj): obj is AccessibleNode;
};

interface Addon {
    readonly canUninstall: boolean;
    readonly description: string;
    readonly id: string;
    readonly isActive: boolean;
    readonly isEnabled: boolean;
    readonly name: string;
    readonly type: string;
    readonly version: string;
    setEnabled(value: boolean): Promise<void>;
    uninstall(): Promise<boolean>;
}

declare var Addon: {
    prototype: Addon;
    new(): Addon;
    isInstance(obj): obj is Addon;
};

interface AddonEvent extends Event {
    readonly id: string;
}

declare var AddonEvent: {
    prototype: AddonEvent;
    new(type: string, eventInitDict: AddonEventInit): AddonEvent;
    isInstance(obj): obj is AddonEvent;
};

interface AddonInstall extends EventTarget {
    "error": ErrorEvent;
    readonly maxProgress: number;
    readonly progress: number;
    readonly state: string;
    cancel(): Promise<void>;
    install(): Promise<void>;
}

declare var AddonInstall: {
    prototype: AddonInstall;
    new(): AddonInstall;
    isInstance(obj): obj is AddonInstall;
};

interface AddonManager extends EventTarget {
    readonly abuseReportPanelEnabled: boolean;
    createInstall(options?: addonInstallOptions): Promise<AddonInstall>;
    getAddonByID(id: string): Promise<Addon>;
    reportAbuse(id: string): Promise<boolean>;
}

declare var AddonManager: {
    prototype: AddonManager;
    new(): AddonManager;
    isInstance(obj): obj is AddonManager;
};

/**
 * A node able to provide real-time frequency and time-domain analysis information. It is an AudioNode that passes the audio stream unchanged from the input to the output, but allows you to take the generated data, process it, and create audio visualizations.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode)
 */
interface AnalyserNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/fftSize) */
    fftSize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/frequencyBinCount) */
    readonly frequencyBinCount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/maxDecibels) */
    maxDecibels: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/minDecibels) */
    minDecibels: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/smoothingTimeConstant) */
    smoothingTimeConstant: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/getByteFrequencyData) */
    getByteFrequencyData(array: Uint8Array): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/getByteTimeDomainData) */
    getByteTimeDomainData(array: Uint8Array): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/getFloatFrequencyData) */
    getFloatFrequencyData(array: Float32Array): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnalyserNode/getFloatTimeDomainData) */
    getFloatTimeDomainData(array: Float32Array): void;
}

declare var AnalyserNode: {
    prototype: AnalyserNode;
    new(context: BaseAudioContext, options?: AnalyserOptions): AnalyserNode;
    isInstance(obj): obj is AnalyserNode;
};

interface Animatable {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animate) */
    animate(keyframes: any, options?: UnrestrictedDoubleOrKeyframeAnimationOptions): Animation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAnimations) */
    getAnimations(options?: GetAnimationsOptions): Animation[];
}

interface AnimationEventMap {
    "cancel": Event;
    "finish": Event;
    "remove": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation) */
interface Animation extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/currentTime) */
    currentTime: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/effect) */
    effect: AnimationEffect | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/finished) */
    readonly finished: Promise<Animation>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/id) */
    id: string;
    readonly isRunningOnCompositor: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/cancel_event) */
    oncancel: ((this: Animation, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/finish_event) */
    onfinish: ((this: Animation, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/remove_event) */
    onremove: ((this: Animation, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/pending) */
    readonly pending: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/playState) */
    readonly playState: AnimationPlayState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/playbackRate) */
    playbackRate: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/ready) */
    readonly ready: Promise<Animation>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/replaceState) */
    readonly replaceState: AnimationReplaceState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/startTime) */
    startTime: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/timeline) */
    timeline: AnimationTimeline | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/cancel) */
    cancel(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/commitStyles) */
    commitStyles(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/finish) */
    finish(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/pause) */
    pause(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/persist) */
    persist(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/play) */
    play(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/reverse) */
    reverse(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Animation/updatePlaybackRate) */
    updatePlaybackRate(playbackRate: number): void;
    addEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: Animation, ev: AnimationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: Animation, ev: AnimationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Animation: {
    prototype: Animation;
    new(effect?: AnimationEffect | null, timeline?: AnimationTimeline | null): Animation;
    isInstance(obj): obj is Animation;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEffect) */
interface AnimationEffect {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEffect/getComputedTiming) */
    getComputedTiming(): ComputedEffectTiming;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEffect/getTiming) */
    getTiming(): EffectTiming;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEffect/updateTiming) */
    updateTiming(timing?: OptionalEffectTiming): void;
}

declare var AnimationEffect: {
    prototype: AnimationEffect;
    new(): AnimationEffect;
    isInstance(obj): obj is AnimationEffect;
};

/**
 * Events providing information related to animations.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEvent)
 */
interface AnimationEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEvent/animationName) */
    readonly animationName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEvent/elapsedTime) */
    readonly elapsedTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationEvent/pseudoElement) */
    readonly pseudoElement: string;
}

declare var AnimationEvent: {
    prototype: AnimationEvent;
    new(type: string, eventInitDict?: AnimationEventInit): AnimationEvent;
    isInstance(obj): obj is AnimationEvent;
};

interface AnimationFrameProvider {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/cancelAnimationFrame) */
    cancelAnimationFrame(handle: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/requestAnimationFrame) */
    requestAnimationFrame(callback: FrameRequestCallback): number;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationPlaybackEvent) */
interface AnimationPlaybackEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationPlaybackEvent/currentTime) */
    readonly currentTime: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationPlaybackEvent/timelineTime) */
    readonly timelineTime: number | null;
}

declare var AnimationPlaybackEvent: {
    prototype: AnimationPlaybackEvent;
    new(type: string, eventInitDict?: AnimationPlaybackEventInit): AnimationPlaybackEvent;
    isInstance(obj): obj is AnimationPlaybackEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline) */
interface AnimationTimeline {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/currentTime) */
    readonly currentTime: number | null;
}

declare var AnimationTimeline: {
    prototype: AnimationTimeline;
    new(): AnimationTimeline;
    isInstance(obj): obj is AnimationTimeline;
};

interface AnonymousContent {
    readonly root: ShadowRoot;
}

declare var AnonymousContent: {
    prototype: AnonymousContent;
    new(): AnonymousContent;
    isInstance(obj): obj is AnonymousContent;
};

interface AriaAttributes {
    ariaAtomic: string | null;
    ariaAutoComplete: string | null;
    ariaBusy: string | null;
    ariaChecked: string | null;
    ariaColCount: string | null;
    ariaColIndex: string | null;
    ariaColIndexText: string | null;
    ariaColSpan: string | null;
    ariaCurrent: string | null;
    ariaDescription: string | null;
    ariaDisabled: string | null;
    ariaExpanded: string | null;
    ariaHasPopup: string | null;
    ariaHidden: string | null;
    ariaInvalid: string | null;
    ariaKeyShortcuts: string | null;
    ariaLabel: string | null;
    ariaLevel: string | null;
    ariaLive: string | null;
    ariaModal: string | null;
    ariaMultiLine: string | null;
    ariaMultiSelectable: string | null;
    ariaOrientation: string | null;
    ariaPlaceholder: string | null;
    ariaPosInSet: string | null;
    ariaPressed: string | null;
    ariaReadOnly: string | null;
    ariaRelevant: string | null;
    ariaRequired: string | null;
    ariaRoleDescription: string | null;
    ariaRowCount: string | null;
    ariaRowIndex: string | null;
    ariaRowIndexText: string | null;
    ariaRowSpan: string | null;
    ariaSelected: string | null;
    ariaSetSize: string | null;
    ariaSort: string | null;
    ariaValueMax: string | null;
    ariaValueMin: string | null;
    ariaValueNow: string | null;
    ariaValueText: string | null;
}

/**
 * A DOM element's attribute as an object. In most DOM methods, you will probably directly retrieve the attribute as a string (e.g., Element.getAttribute(), but certain functions (e.g., Element.getAttributeNode()) or means of iterating give Attr types.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr)
 */
interface Attr extends Node {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/localName) */
    readonly localName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/namespaceURI) */
    readonly namespaceURI: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/ownerElement) */
    readonly ownerElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/prefix) */
    readonly prefix: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/specified)
     */
    readonly specified: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/value) */
    value: string;
}

declare var Attr: {
    prototype: Attr;
    new(): Attr;
    isInstance(obj): obj is Attr;
};

/**
 * A short audio asset residing in memory, created from an audio file using the AudioContext.decodeAudioData() method, or from raw data using AudioContext.createBuffer(). Once put into an AudioBuffer, the audio can then be played by being passed into an AudioBufferSourceNode.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer)
 */
interface AudioBuffer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/duration) */
    readonly duration: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/numberOfChannels) */
    readonly numberOfChannels: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/sampleRate) */
    readonly sampleRate: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/copyFromChannel) */
    copyFromChannel(destination: Float32Array, channelNumber: number, startInChannel?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/copyToChannel) */
    copyToChannel(source: Float32Array, channelNumber: number, startInChannel?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBuffer/getChannelData) */
    getChannelData(channel: number): Float32Array;
}

declare var AudioBuffer: {
    prototype: AudioBuffer;
    new(options: AudioBufferOptions): AudioBuffer;
    isInstance(obj): obj is AudioBuffer;
};

/**
 * An AudioScheduledSourceNode which represents an audio source consisting of in-memory audio data, stored in an AudioBuffer. It's especially useful for playing back audio which has particularly stringent timing accuracy requirements, such as for sounds that must match a specific rhythm and can be kept in memory rather than being played from disk or the network.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode)
 */
interface AudioBufferSourceNode extends AudioScheduledSourceNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/buffer) */
    buffer: AudioBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/detune) */
    readonly detune: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/loop) */
    loop: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/loopEnd) */
    loopEnd: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/loopStart) */
    loopStart: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/playbackRate) */
    readonly playbackRate: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioBufferSourceNode/start) */
    start(when?: number, grainOffset?: number, grainDuration?: number): void;
    addEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: AudioBufferSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: AudioBufferSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var AudioBufferSourceNode: {
    prototype: AudioBufferSourceNode;
    new(context: BaseAudioContext, options?: AudioBufferSourceOptions): AudioBufferSourceNode;
    isInstance(obj): obj is AudioBufferSourceNode;
};

/**
 * An audio-processing graph built from audio modules linked together, each represented by an AudioNode.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext)
 */
interface AudioContext extends BaseAudioContext {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/baseLatency) */
    readonly baseLatency: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/outputLatency) */
    readonly outputLatency: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/close) */
    close(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/createMediaElementSource) */
    createMediaElementSource(mediaElement: HTMLMediaElement): MediaElementAudioSourceNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/createMediaStreamDestination) */
    createMediaStreamDestination(): MediaStreamAudioDestinationNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/createMediaStreamSource) */
    createMediaStreamSource(mediaStream: MediaStream): MediaStreamAudioSourceNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/createMediaStreamTrackSource) */
    createMediaStreamTrackSource(mediaStreamTrack: MediaStreamTrack): MediaStreamTrackAudioSourceNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/getOutputTimestamp) */
    getOutputTimestamp(): AudioTimestamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioContext/suspend) */
    suspend(): Promise<void>;
    addEventListener<K extends keyof BaseAudioContextEventMap>(type: K, listener: (this: AudioContext, ev: BaseAudioContextEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof BaseAudioContextEventMap>(type: K, listener: (this: AudioContext, ev: BaseAudioContextEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var AudioContext: {
    prototype: AudioContext;
    new(contextOptions?: AudioContextOptions): AudioContext;
    isInstance(obj): obj is AudioContext;
};

/**
 * AudioDestinationNode has no output (as it is the output, no more AudioNode can be linked after it in the audio graph) and one input. The number of channels in the input must be between 0 and the maxChannelCount value or an exception is raised.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioDestinationNode)
 */
interface AudioDestinationNode extends AudioNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioDestinationNode/maxChannelCount) */
    readonly maxChannelCount: number;
}

declare var AudioDestinationNode: {
    prototype: AudioDestinationNode;
    new(): AudioDestinationNode;
    isInstance(obj): obj is AudioDestinationNode;
};

/**
 * The position and orientation of the unique person listening to the audio scene, and is used in audio spatialization. All PannerNodes spatialize in relation to the AudioListener stored in the BaseAudioContext.listener attribute.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioListener)
 */
interface AudioListener {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioListener/setOrientation)
     */
    setOrientation(x: number, y: number, z: number, xUp: number, yUp: number, zUp: number): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioListener/setPosition)
     */
    setPosition(x: number, y: number, z: number): void;
}

declare var AudioListener: {
    prototype: AudioListener;
    new(): AudioListener;
    isInstance(obj): obj is AudioListener;
};

/**
 * A generic interface for representing an audio processing module. Examples include:
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode)
 */
interface AudioNode extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/channelCount) */
    channelCount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/channelCountMode) */
    channelCountMode: ChannelCountMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/channelInterpretation) */
    channelInterpretation: ChannelInterpretation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/context) */
    readonly context: BaseAudioContext;
    readonly id: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/numberOfInputs) */
    readonly numberOfInputs: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/numberOfOutputs) */
    readonly numberOfOutputs: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/connect) */
    connect(destination: AudioNode, output?: number, input?: number): AudioNode;
    connect(destination: AudioParam, output?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioNode/disconnect) */
    disconnect(): void;
    disconnect(output: number): void;
    disconnect(destination: AudioNode): void;
    disconnect(destination: AudioNode, output: number): void;
    disconnect(destination: AudioNode, output: number, input: number): void;
    disconnect(destination: AudioParam): void;
    disconnect(destination: AudioParam, output: number): void;
}

declare var AudioNode: {
    prototype: AudioNode;
    new(): AudioNode;
    isInstance(obj): obj is AudioNode;
};

interface AudioNodePassThrough {
    passThrough: boolean;
}

/**
 * The Web Audio API's AudioParam interface represents an audio-related parameter, usually a parameter of an AudioNode (such as GainNode.gain).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam)
 */
interface AudioParam {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/defaultValue) */
    readonly defaultValue: number;
    readonly isTrackSuspended: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/maxValue) */
    readonly maxValue: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/minValue) */
    readonly minValue: number;
    readonly name: string;
    readonly parentNodeId: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/value) */
    value: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/cancelScheduledValues) */
    cancelScheduledValues(startTime: number): AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/exponentialRampToValueAtTime) */
    exponentialRampToValueAtTime(value: number, endTime: number): AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/linearRampToValueAtTime) */
    linearRampToValueAtTime(value: number, endTime: number): AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/setTargetAtTime) */
    setTargetAtTime(target: number, startTime: number, timeConstant: number): AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/setValueAtTime) */
    setValueAtTime(value: number, startTime: number): AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParam/setValueCurveAtTime) */
    setValueCurveAtTime(values: number[] | Float32Array, startTime: number, duration: number): AudioParam;
}

declare var AudioParam: {
    prototype: AudioParam;
    new(): AudioParam;
    isInstance(obj): obj is AudioParam;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioParamMap)
 */
interface AudioParamMap {
    forEach(callbackfn: (value: AudioParam, key: string, parent: AudioParamMap) => void, thisArg?: any): void;
}

declare var AudioParamMap: {
    prototype: AudioParamMap;
    new(): AudioParamMap;
    isInstance(obj): obj is AudioParamMap;
};

/**
 * The Web Audio API events that occur when a ScriptProcessorNode input buffer is ready to be processed.
 * @deprecated As of the August 29 2014 Web Audio API spec publication, this feature has been marked as deprecated, and is soon to be replaced by AudioWorklet.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioProcessingEvent)
 */
interface AudioProcessingEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioProcessingEvent/inputBuffer)
     */
    readonly inputBuffer: AudioBuffer;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioProcessingEvent/outputBuffer)
     */
    readonly outputBuffer: AudioBuffer;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioProcessingEvent/playbackTime)
     */
    readonly playbackTime: number;
}

/** @deprecated */
declare var AudioProcessingEvent: {
    prototype: AudioProcessingEvent;
    new(): AudioProcessingEvent;
    isInstance(obj): obj is AudioProcessingEvent;
};

interface AudioScheduledSourceNodeEventMap {
    "ended": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioScheduledSourceNode) */
interface AudioScheduledSourceNode extends AudioNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioScheduledSourceNode/ended_event) */
    onended: ((this: AudioScheduledSourceNode, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioScheduledSourceNode/start) */
    start(when?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioScheduledSourceNode/stop) */
    stop(when?: number): void;
    addEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: AudioScheduledSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: AudioScheduledSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var AudioScheduledSourceNode: {
    prototype: AudioScheduledSourceNode;
    new(): AudioScheduledSourceNode;
    isInstance(obj): obj is AudioScheduledSourceNode;
};

/**
 * A single audio track from one of the HTML media elements, <audio> or <video>.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack)
 */
interface AudioTrack {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack/enabled) */
    enabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack/kind) */
    readonly kind: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrack/language) */
    readonly language: string;
}

declare var AudioTrack: {
    prototype: AudioTrack;
    new(): AudioTrack;
    isInstance(obj): obj is AudioTrack;
};

interface AudioTrackListEventMap {
    "addtrack": Event;
    "change": Event;
    "removetrack": Event;
}

/**
 * Used to represent a list of the audio tracks contained within a given HTML media element, with each track represented by a separate AudioTrack object in the list.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList)
 */
interface AudioTrackList extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList/addtrack_event) */
    onaddtrack: ((this: AudioTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList/change_event) */
    onchange: ((this: AudioTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList/removetrack_event) */
    onremovetrack: ((this: AudioTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioTrackList/getTrackById) */
    getTrackById(id: string): AudioTrack | null;
    addEventListener<K extends keyof AudioTrackListEventMap>(type: K, listener: (this: AudioTrackList, ev: AudioTrackListEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioTrackListEventMap>(type: K, listener: (this: AudioTrackList, ev: AudioTrackListEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: AudioTrack;
}

declare var AudioTrackList: {
    prototype: AudioTrackList;
    new(): AudioTrackList;
    isInstance(obj): obj is AudioTrackList;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorklet)
 */
interface AudioWorklet extends Worklet {
}

declare var AudioWorklet: {
    prototype: AudioWorklet;
    new(): AudioWorklet;
    isInstance(obj): obj is AudioWorklet;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope) */
interface AudioWorkletGlobalScope extends WorkletGlobalScope {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/currentFrame) */
    readonly currentFrame: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/currentTime) */
    readonly currentTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/sampleRate) */
    readonly sampleRate: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/registerProcessor) */
    registerProcessor(name: string, processorCtor: AudioWorkletProcessorConstructor): void;
}

declare var AudioWorkletGlobalScope: {
    prototype: AudioWorkletGlobalScope;
    new(): AudioWorkletGlobalScope;
    isInstance(obj): obj is AudioWorkletGlobalScope;
};

interface AudioWorkletNodeEventMap {
    "processorerror": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletNode)
 */
interface AudioWorkletNode extends AudioNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletNode/processorerror_event) */
    onprocessorerror: ((this: AudioWorkletNode, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletNode/parameters) */
    readonly parameters: AudioParamMap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletNode/port) */
    readonly port: MessagePort;
    addEventListener<K extends keyof AudioWorkletNodeEventMap>(type: K, listener: (this: AudioWorkletNode, ev: AudioWorkletNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioWorkletNodeEventMap>(type: K, listener: (this: AudioWorkletNode, ev: AudioWorkletNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var AudioWorkletNode: {
    prototype: AudioWorkletNode;
    new(context: BaseAudioContext, name: string, options?: AudioWorkletNodeOptions): AudioWorkletNode;
    isInstance(obj): obj is AudioWorkletNode;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletProcessor) */
interface AudioWorkletProcessor {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletProcessor/port) */
    readonly port: MessagePort;
}

declare var AudioWorkletProcessor: {
    prototype: AudioWorkletProcessor;
    new(): AudioWorkletProcessor;
    isInstance(obj): obj is AudioWorkletProcessor;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse)
 */
interface AuthenticatorAssertionResponse extends AuthenticatorResponse {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/authenticatorData) */
    readonly authenticatorData: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/signature) */
    readonly signature: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAssertionResponse/userHandle) */
    readonly userHandle: ArrayBuffer | null;
}

declare var AuthenticatorAssertionResponse: {
    prototype: AuthenticatorAssertionResponse;
    new(): AuthenticatorAssertionResponse;
    isInstance(obj): obj is AuthenticatorAssertionResponse;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse)
 */
interface AuthenticatorAttestationResponse extends AuthenticatorResponse {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/attestationObject) */
    readonly attestationObject: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/getAuthenticatorData) */
    getAuthenticatorData(): ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/getPublicKey) */
    getPublicKey(): ArrayBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/getPublicKeyAlgorithm) */
    getPublicKeyAlgorithm(): COSEAlgorithmIdentifier;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorAttestationResponse/getTransports) */
    getTransports(): string[];
}

declare var AuthenticatorAttestationResponse: {
    prototype: AuthenticatorAttestationResponse;
    new(): AuthenticatorAttestationResponse;
    isInstance(obj): obj is AuthenticatorAttestationResponse;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorResponse)
 */
interface AuthenticatorResponse {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AuthenticatorResponse/clientDataJSON) */
    readonly clientDataJSON: ArrayBuffer;
}

declare var AuthenticatorResponse: {
    prototype: AuthenticatorResponse;
    new(): AuthenticatorResponse;
    isInstance(obj): obj is AuthenticatorResponse;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BarProp) */
interface BarProp {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BarProp/visible) */
    visible: boolean;
}

declare var BarProp: {
    prototype: BarProp;
    new(): BarProp;
    isInstance(obj): obj is BarProp;
};

interface BaseAudioContextEventMap {
    "statechange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext) */
interface BaseAudioContext extends EventTarget {
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/audioWorklet)
     */
    readonly audioWorklet: AudioWorklet;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/currentTime) */
    readonly currentTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/destination) */
    readonly destination: AudioDestinationNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/listener) */
    readonly listener: AudioListener;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/statechange_event) */
    onstatechange: ((this: BaseAudioContext, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/sampleRate) */
    readonly sampleRate: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/state) */
    readonly state: AudioContextState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createAnalyser) */
    createAnalyser(): AnalyserNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createBiquadFilter) */
    createBiquadFilter(): BiquadFilterNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createBuffer) */
    createBuffer(numberOfChannels: number, length: number, sampleRate: number): AudioBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createBufferSource) */
    createBufferSource(): AudioBufferSourceNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createChannelMerger) */
    createChannelMerger(numberOfInputs?: number): ChannelMergerNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createChannelSplitter) */
    createChannelSplitter(numberOfOutputs?: number): ChannelSplitterNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createConstantSource) */
    createConstantSource(): ConstantSourceNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createConvolver) */
    createConvolver(): ConvolverNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createDelay) */
    createDelay(maxDelayTime?: number): DelayNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createDynamicsCompressor) */
    createDynamicsCompressor(): DynamicsCompressorNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createGain) */
    createGain(): GainNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createIIRFilter) */
    createIIRFilter(feedforward: number[], feedback: number[]): IIRFilterNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createOscillator) */
    createOscillator(): OscillatorNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createPanner) */
    createPanner(): PannerNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createPeriodicWave) */
    createPeriodicWave(real: number[] | Float32Array, imag: number[] | Float32Array, constraints?: PeriodicWaveConstraints): PeriodicWave;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createScriptProcessor)
     */
    createScriptProcessor(bufferSize?: number, numberOfInputChannels?: number, numberOfOutputChannels?: number): ScriptProcessorNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createStereoPanner) */
    createStereoPanner(): StereoPannerNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/createWaveShaper) */
    createWaveShaper(): WaveShaperNode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BaseAudioContext/decodeAudioData) */
    decodeAudioData(audioData: ArrayBuffer, successCallback?: DecodeSuccessCallback, errorCallback?: DecodeErrorCallback): Promise<AudioBuffer>;
    resume(): Promise<void>;
    addEventListener<K extends keyof BaseAudioContextEventMap>(type: K, listener: (this: BaseAudioContext, ev: BaseAudioContextEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof BaseAudioContextEventMap>(type: K, listener: (this: BaseAudioContext, ev: BaseAudioContextEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var BaseAudioContext: {
    prototype: BaseAudioContext;
    new(): BaseAudioContext;
    isInstance(obj): obj is BaseAudioContext;
};

interface BatteryManagerEventMap {
    "chargingchange": Event;
    "chargingtimechange": Event;
    "dischargingtimechange": Event;
    "levelchange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager) */
interface BatteryManager extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/charging) */
    readonly charging: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingTime) */
    readonly chargingTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/dischargingTime) */
    readonly dischargingTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/level) */
    readonly level: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingchange_event) */
    onchargingchange: ((this: BatteryManager, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/chargingtimechange_event) */
    onchargingtimechange: ((this: BatteryManager, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/dischargingtimechange_event) */
    ondischargingtimechange: ((this: BatteryManager, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BatteryManager/levelchange_event) */
    onlevelchange: ((this: BatteryManager, ev: Event) => any) | null;
    addEventListener<K extends keyof BatteryManagerEventMap>(type: K, listener: (this: BatteryManager, ev: BatteryManagerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof BatteryManagerEventMap>(type: K, listener: (this: BatteryManager, ev: BatteryManagerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var BatteryManager: {
    prototype: BatteryManager;
    new(): BatteryManager;
    isInstance(obj): obj is BatteryManager;
};

/**
 * The beforeunload event is fired when the window, the document and its resources are about to be unloaded.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/BeforeUnloadEvent)
 */
interface BeforeUnloadEvent extends Event {
    /** @deprecated */
    returnValue: boolean;
}

declare var BeforeUnloadEvent: {
    prototype: BeforeUnloadEvent;
    new(): BeforeUnloadEvent;
    isInstance(obj): obj is BeforeUnloadEvent;
};

/**
 * A simple low-order filter, and is created using the AudioContext.createBiquadFilter() method. It is an AudioNode that can represent different kinds of filters, tone control devices, and graphic equalizers.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode)
 */
interface BiquadFilterNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/Q) */
    readonly Q: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/detune) */
    readonly detune: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/frequency) */
    readonly frequency: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/gain) */
    readonly gain: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/type) */
    type: BiquadFilterType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BiquadFilterNode/getFrequencyResponse) */
    getFrequencyResponse(frequencyHz: Float32Array, magResponse: Float32Array, phaseResponse: Float32Array): void;
}

declare var BiquadFilterNode: {
    prototype: BiquadFilterNode;
    new(context: BaseAudioContext, options?: BiquadFilterOptions): BiquadFilterNode;
    isInstance(obj): obj is BiquadFilterNode;
};

/**
 * A file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob)
 */
interface Blob {
    readonly blobImplType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/size) */
    readonly size: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/type) */
    readonly type: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/arrayBuffer) */
    arrayBuffer(): Promise<ArrayBuffer>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/slice) */
    slice(start?: number, end?: number, contentType?: string): Blob;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/stream) */
    stream(): ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Blob/text) */
    text(): Promise<string>;
}

declare var Blob: {
    prototype: Blob;
    new(blobParts?: BlobPart[], options?: BlobPropertyBag): Blob;
    isInstance(obj): obj is Blob;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BlobEvent) */
interface BlobEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BlobEvent/data) */
    readonly data: Blob;
}

declare var BlobEvent: {
    prototype: BlobEvent;
    new(type: string, eventInitDict: BlobEventInit): BlobEvent;
    isInstance(obj): obj is BlobEvent;
};

interface Body {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/bodyUsed) */
    readonly bodyUsed: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/arrayBuffer) */
    arrayBuffer(): Promise<ArrayBuffer>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/blob) */
    blob(): Promise<Blob>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/formData) */
    formData(): Promise<FormData>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/json) */
    json(): Promise<JSON>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/text) */
    text(): Promise<string>;
}

interface BroadcastChannelEventMap {
    "message": Event;
    "messageerror": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel) */
interface BroadcastChannel extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel/message_event) */
    onmessage: ((this: BroadcastChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel/messageerror_event) */
    onmessageerror: ((this: BroadcastChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/BroadcastChannel/postMessage) */
    postMessage(message: any): void;
    addEventListener<K extends keyof BroadcastChannelEventMap>(type: K, listener: (this: BroadcastChannel, ev: BroadcastChannelEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof BroadcastChannelEventMap>(type: K, listener: (this: BroadcastChannel, ev: BroadcastChannelEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var BroadcastChannel: {
    prototype: BroadcastChannel;
    new(channel: string): BroadcastChannel;
    isInstance(obj): obj is BroadcastChannel;
};

interface BrowsingContext extends LoadContextMixin {
    allowJavascript: boolean;
    readonly ancestorsAreCurrent: boolean;
    authorStyleDisabledDefault: boolean;
    browserId: number;
    readonly childOffset: number;
    readonly childSessionHistory: ChildSHistory | null;
    readonly children: BrowsingContext[];
    readonly createdDynamically: boolean;
    readonly currentWindowContext: WindowContext | null;
    customPlatform: string;
    customUserAgent: string;
    defaultLoadFlags: number;
    displayMode: DisplayMode;
    readonly docShell: nsIDocShell | null;
    readonly embedderElement: XULFrameElement | null;
    readonly embedderElementType: string;
    forceDesktopViewport: boolean;
    forceOffline: boolean;
    fullZoom: number;
    readonly group: BrowsingContextGroup;
    hasSiblings: boolean;
    readonly historyID: any;
    readonly id: number;
    inRDMPane: boolean;
    isActive: boolean;
    isAppTab: boolean;
    readonly isDiscarded: boolean;
    readonly isInBFCache: boolean;
    mediumOverride: string;
    readonly name: string;
    readonly opener: BrowsingContext | null;
    overrideDPPX: number;
    readonly parent: BrowsingContext | null;
    readonly parentWindowContext: WindowContext | null;
    prefersColorSchemeOverride: PrefersColorSchemeOverride;
    sandboxFlags: number;
    serviceWorkersTestingEnabled: boolean;
    suspendMediaWhenInactive: boolean;
    readonly targetTopLevelLinkClicksToBlank: boolean;
    textZoom: number;
    readonly top: BrowsingContext;
    readonly topWindowContext: WindowContext | null;
    readonly touchEventsOverride: TouchEventsOverride;
    useGlobalHistory: boolean;
    watchedByDevTools: boolean;
    readonly window: WindowProxy | null;
    getAllBrowsingContextsInSubtree(): BrowsingContext[];
    resetLocationChangeRateLimit(): void;
    setRDMPaneMaxTouchPoints(maxTouchPoints: number): void;
    setRDMPaneOrientation(type: OrientationType, rotationAngle: number): void;
}

declare var BrowsingContext: {
    prototype: BrowsingContext;
    new(): BrowsingContext;
    get(aId: number): CanonicalBrowsingContext | null;
    getCurrentTopByBrowserId(aId: number): BrowsingContext | null;
    getFromWindow(window: WindowProxy): BrowsingContext | null;
    isInstance(obj): obj is BrowsingContext;
};

interface BrowsingContextGroup {
    readonly id: number;
    getToplevels(): BrowsingContext[];
}

declare var BrowsingContextGroup: {
    prototype: BrowsingContextGroup;
    new(): BrowsingContextGroup;
    isInstance(obj): obj is BrowsingContextGroup;
};

/**
 * This Streams API interface provides a built-in byte length queuing strategy that can be used when constructing streams.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ByteLengthQueuingStrategy)
 */
interface ByteLengthQueuingStrategy {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ByteLengthQueuingStrategy/highWaterMark) */
    readonly highWaterMark: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ByteLengthQueuingStrategy/size) */
    readonly size: Function;
}

declare var ByteLengthQueuingStrategy: {
    prototype: ByteLengthQueuingStrategy;
    new(init: QueuingStrategyInit): ByteLengthQueuingStrategy;
    isInstance(obj): obj is ByteLengthQueuingStrategy;
};

/**
 * A CDATA section that can be used within XML to include extended portions of unescaped text. The symbols < and & don’t need escaping as they normally do when inside a CDATA section.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CDATASection)
 */
interface CDATASection extends Text {
}

declare var CDATASection: {
    prototype: CDATASection;
    new(): CDATASection;
    isInstance(obj): obj is CDATASection;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSAnimation) */
interface CSSAnimation extends Animation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSAnimation/animationName) */
    readonly animationName: string;
    addEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: CSSAnimation, ev: AnimationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: CSSAnimation, ev: AnimationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var CSSAnimation: {
    prototype: CSSAnimation;
    new(): CSSAnimation;
    isInstance(obj): obj is CSSAnimation;
};

/**
 * A single condition CSS at-rule, which consists of a condition and a statement block. It is a child of CSSGroupingRule.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSConditionRule)
 */
interface CSSConditionRule extends CSSGroupingRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSConditionRule/conditionText) */
    readonly conditionText: UTF8String;
}

declare var CSSConditionRule: {
    prototype: CSSConditionRule;
    new(): CSSConditionRule;
    isInstance(obj): obj is CSSConditionRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSContainerRule) */
interface CSSContainerRule extends CSSConditionRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSContainerRule/containerName) */
    readonly containerName: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSContainerRule/containerQuery) */
    readonly containerQuery: UTF8String;
    queryContainerFor(element: Element): Element | null;
}

declare var CSSContainerRule: {
    prototype: CSSContainerRule;
    new(): CSSContainerRule;
    isInstance(obj): obj is CSSContainerRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule) */
interface CSSCounterStyleRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/additiveSymbols) */
    additiveSymbols: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/fallback) */
    fallback: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/negative) */
    negative: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/pad) */
    pad: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/prefix) */
    prefix: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/range) */
    range: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/speakAs) */
    speakAs: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/suffix) */
    suffix: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/symbols) */
    symbols: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSCounterStyleRule/system) */
    system: UTF8String;
}

declare var CSSCounterStyleRule: {
    prototype: CSSCounterStyleRule;
    new(): CSSCounterStyleRule;
    isInstance(obj): obj is CSSCounterStyleRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontFaceRule) */
interface CSSFontFaceRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontFaceRule/style) */
    readonly style: CSSStyleDeclaration;
}

declare var CSSFontFaceRule: {
    prototype: CSSFontFaceRule;
    new(): CSSFontFaceRule;
    isInstance(obj): obj is CSSFontFaceRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontFeatureValuesRule) */
interface CSSFontFeatureValuesRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontFeatureValuesRule/fontFamily) */
    fontFamily: UTF8String;
    valueText: UTF8String;
}

declare var CSSFontFeatureValuesRule: {
    prototype: CSSFontFeatureValuesRule;
    new(): CSSFontFeatureValuesRule;
    isInstance(obj): obj is CSSFontFeatureValuesRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontPaletteValuesRule) */
interface CSSFontPaletteValuesRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontPaletteValuesRule/basePalette) */
    readonly basePalette: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontPaletteValuesRule/fontFamily) */
    readonly fontFamily: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontPaletteValuesRule/name) */
    readonly name: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSFontPaletteValuesRule/overrideColors) */
    readonly overrideColors: UTF8String;
}

declare var CSSFontPaletteValuesRule: {
    prototype: CSSFontPaletteValuesRule;
    new(): CSSFontPaletteValuesRule;
    isInstance(obj): obj is CSSFontPaletteValuesRule;
};

/**
 * Any CSS at-rule that contains other rules nested within it.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSGroupingRule)
 */
interface CSSGroupingRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/cssRules) */
    readonly cssRules: CSSRuleList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/deleteRule) */
    deleteRule(index: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSGroupingRule/insertRule) */
    insertRule(rule: UTF8String, index?: number): number;
}

declare var CSSGroupingRule: {
    prototype: CSSGroupingRule;
    new(): CSSGroupingRule;
    isInstance(obj): obj is CSSGroupingRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule) */
interface CSSImportRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule/href) */
    readonly href: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule/layerName) */
    readonly layerName: UTF8String | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule/media) */
    readonly media: MediaList | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule/styleSheet) */
    readonly styleSheet: CSSStyleSheet | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSImportRule/supportsText) */
    readonly supportsText: UTF8String | null;
}

declare var CSSImportRule: {
    prototype: CSSImportRule;
    new(): CSSImportRule;
    isInstance(obj): obj is CSSImportRule;
};

/**
 * An object representing a set of style for a given keyframe. It corresponds to the contains of a single keyframe of a @keyframes at-rule. It implements the CSSRule interface with a type value of 8 (CSSRule.KEYFRAME_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule)
 */
interface CSSKeyframeRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule/keyText) */
    keyText: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframeRule/style) */
    readonly style: CSSStyleDeclaration;
}

declare var CSSKeyframeRule: {
    prototype: CSSKeyframeRule;
    new(): CSSKeyframeRule;
    isInstance(obj): obj is CSSKeyframeRule;
};

/**
 * An object representing a complete set of keyframes for a CSS animation. It corresponds to the contains of a whole @keyframes at-rule. It implements the CSSRule interface with a type value of 7 (CSSRule.KEYFRAMES_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule)
 */
interface CSSKeyframesRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/cssRules) */
    readonly cssRules: CSSRuleList;
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/appendRule) */
    appendRule(rule: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/deleteRule) */
    deleteRule(select: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSKeyframesRule/findRule) */
    findRule(select: string): CSSKeyframeRule | null;
    [index: number]: CSSKeyframeRule;
}

declare var CSSKeyframesRule: {
    prototype: CSSKeyframesRule;
    new(): CSSKeyframesRule;
    isInstance(obj): obj is CSSKeyframesRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSLayerBlockRule) */
interface CSSLayerBlockRule extends CSSGroupingRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSLayerBlockRule/name) */
    readonly name: UTF8String;
}

declare var CSSLayerBlockRule: {
    prototype: CSSLayerBlockRule;
    new(): CSSLayerBlockRule;
    isInstance(obj): obj is CSSLayerBlockRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSLayerStatementRule) */
interface CSSLayerStatementRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSLayerStatementRule/nameList) */
    readonly nameList: UTF8String[];
}

declare var CSSLayerStatementRule: {
    prototype: CSSLayerStatementRule;
    new(): CSSLayerStatementRule;
    isInstance(obj): obj is CSSLayerStatementRule;
};

/**
 * A single CSS @media rule. It implements the CSSConditionRule interface, and therefore the CSSGroupingRule and the CSSRule interface with a type value of 4 (CSSRule.MEDIA_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSMediaRule)
 */
interface CSSMediaRule extends CSSConditionRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSMediaRule/media) */
    readonly media: MediaList;
}

declare var CSSMediaRule: {
    prototype: CSSMediaRule;
    new(): CSSMediaRule;
    isInstance(obj): obj is CSSMediaRule;
};

interface CSSMozDocumentRule extends CSSConditionRule {
}

declare var CSSMozDocumentRule: {
    prototype: CSSMozDocumentRule;
    new(): CSSMozDocumentRule;
    isInstance(obj): obj is CSSMozDocumentRule;
};

/**
 * An object representing a single CSS @namespace at-rule. It implements the CSSRule interface, with a type value of 10 (CSSRule.NAMESPACE_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule)
 */
interface CSSNamespaceRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule/namespaceURI) */
    readonly namespaceURI: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSNamespaceRule/prefix) */
    readonly prefix: string;
}

declare var CSSNamespaceRule: {
    prototype: CSSNamespaceRule;
    new(): CSSNamespaceRule;
    isInstance(obj): obj is CSSNamespaceRule;
};

/**
 * CSSPageRule is an interface representing a single CSS @page rule. It implements the CSSRule interface with a type value of 6 (CSSRule.PAGE_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPageRule)
 */
interface CSSPageRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPageRule/selectorText) */
    selectorText: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPageRule/style) */
    readonly style: CSSStyleDeclaration;
}

declare var CSSPageRule: {
    prototype: CSSPageRule;
    new(): CSSPageRule;
    isInstance(obj): obj is CSSPageRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPropertyRule) */
interface CSSPropertyRule extends CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/inherits) */
    readonly inherits: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/initialValue) */
    readonly initialValue: UTF8String | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/name) */
    readonly name: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPropertyRule/syntax) */
    readonly syntax: UTF8String;
}

declare var CSSPropertyRule: {
    prototype: CSSPropertyRule;
    new(): CSSPropertyRule;
    isInstance(obj): obj is CSSPropertyRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPseudoElement) */
interface CSSPseudoElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPseudoElement/element) */
    readonly element: Element;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSPseudoElement/type) */
    readonly type: string;
}

declare var CSSPseudoElement: {
    prototype: CSSPseudoElement;
    new(): CSSPseudoElement;
    isInstance(obj): obj is CSSPseudoElement;
};

/**
 * A single CSS rule. There are several types of rules, listed in the Type constants section below.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRule)
 */
interface CSSRule {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRule/cssText) */
    cssText: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRule/parentRule) */
    readonly parentRule: CSSRule | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRule/parentStyleSheet) */
    readonly parentStyleSheet: CSSStyleSheet | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRule/type)
     */
    readonly type: number;
    readonly STYLE_RULE: 1;
    readonly CHARSET_RULE: 2;
    readonly IMPORT_RULE: 3;
    readonly MEDIA_RULE: 4;
    readonly FONT_FACE_RULE: 5;
    readonly PAGE_RULE: 6;
    readonly NAMESPACE_RULE: 10;
    readonly KEYFRAMES_RULE: 7;
    readonly KEYFRAME_RULE: 8;
    readonly COUNTER_STYLE_RULE: 11;
    readonly SUPPORTS_RULE: 12;
    readonly DOCUMENT_RULE: 13;
    readonly FONT_FEATURE_VALUES_RULE: 14;
}

declare var CSSRule: {
    prototype: CSSRule;
    new(): CSSRule;
    readonly STYLE_RULE: 1;
    readonly CHARSET_RULE: 2;
    readonly IMPORT_RULE: 3;
    readonly MEDIA_RULE: 4;
    readonly FONT_FACE_RULE: 5;
    readonly PAGE_RULE: 6;
    readonly NAMESPACE_RULE: 10;
    readonly KEYFRAMES_RULE: 7;
    readonly KEYFRAME_RULE: 8;
    readonly COUNTER_STYLE_RULE: 11;
    readonly SUPPORTS_RULE: 12;
    readonly DOCUMENT_RULE: 13;
    readonly FONT_FEATURE_VALUES_RULE: 14;
    isInstance(obj): obj is CSSRule;
};

/**
 * A CSSRuleList is an (indirect-modify only) array-like object containing an ordered collection of CSSRule objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRuleList)
 */
interface CSSRuleList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRuleList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSRuleList/item) */
    item(index: number): CSSRule | null;
    [index: number]: CSSRule;
}

declare var CSSRuleList: {
    prototype: CSSRuleList;
    new(): CSSRuleList;
    isInstance(obj): obj is CSSRuleList;
};

/**
 * An object that is a CSS declaration block, and exposes style information and various style-related methods and properties.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration)
 */
interface CSSStyleDeclaration {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/accent-color) */
    accentColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-content) */
    alignContent: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-items) */
    alignItems: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-self) */
    alignSelf: string;
    alignmentBaseline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/all) */
    all: string;
    anchorDefault: string;
    anchorName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation) */
    animation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-composition) */
    animationComposition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-delay) */
    animationDelay: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-direction) */
    animationDirection: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-duration) */
    animationDuration: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-fill-mode) */
    animationFillMode: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-iteration-count) */
    animationIterationCount: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-name) */
    animationName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-play-state) */
    animationPlayState: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-range) */
    animationRange: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-range-end) */
    animationRangeEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-range-start) */
    animationRangeStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-timeline) */
    animationTimeline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-timing-function) */
    animationTimingFunction: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/appearance) */
    appearance: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/aspect-ratio) */
    aspectRatio: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/backdrop-filter) */
    backdropFilter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/backface-visibility) */
    backfaceVisibility: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background) */
    background: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-attachment) */
    backgroundAttachment: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-blend-mode) */
    backgroundBlendMode: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-clip) */
    backgroundClip: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-color) */
    backgroundColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-image) */
    backgroundImage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-origin) */
    backgroundOrigin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-position) */
    backgroundPosition: string;
    backgroundPositionBlock: string;
    backgroundPositionInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-position-x) */
    backgroundPositionX: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-position-y) */
    backgroundPositionY: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-repeat) */
    backgroundRepeat: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-size) */
    backgroundSize: string;
    backgroundTbd: string;
    baselineShift: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/baseline-source) */
    baselineSource: string;
    blockEllipsis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/block-size) */
    blockSize: string;
    blockStep: string;
    blockStepAlign: string;
    blockStepInsert: string;
    blockStepRound: string;
    blockStepSize: string;
    bookmarkLabel: string;
    bookmarkLevel: string;
    bookmarkState: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border) */
    border: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block) */
    borderBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-color) */
    borderBlockColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-end) */
    borderBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-end-color) */
    borderBlockEndColor: string;
    borderBlockEndRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-end-style) */
    borderBlockEndStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-end-width) */
    borderBlockEndWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-start) */
    borderBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-start-color) */
    borderBlockStartColor: string;
    borderBlockStartRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-start-style) */
    borderBlockStartStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-start-width) */
    borderBlockStartWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-style) */
    borderBlockStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-block-width) */
    borderBlockWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom) */
    borderBottom: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-color) */
    borderBottomColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-left-radius) */
    borderBottomLeftRadius: string;
    borderBottomRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-right-radius) */
    borderBottomRightRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-style) */
    borderBottomStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-width) */
    borderBottomWidth: string;
    borderBoundary: string;
    borderClip: string;
    borderClipBottom: string;
    borderClipLeft: string;
    borderClipRight: string;
    borderClipTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-collapse) */
    borderCollapse: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-color) */
    borderColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-end-end-radius) */
    borderEndEndRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-end-start-radius) */
    borderEndStartRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image) */
    borderImage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image-outset) */
    borderImageOutset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image-repeat) */
    borderImageRepeat: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image-slice) */
    borderImageSlice: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image-source) */
    borderImageSource: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-image-width) */
    borderImageWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline) */
    borderInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-color) */
    borderInlineColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-end) */
    borderInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-end-color) */
    borderInlineEndColor: string;
    borderInlineEndRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-end-style) */
    borderInlineEndStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-end-width) */
    borderInlineEndWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-start) */
    borderInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-start-color) */
    borderInlineStartColor: string;
    borderInlineStartRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-start-style) */
    borderInlineStartStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-start-width) */
    borderInlineStartWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-style) */
    borderInlineStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-inline-width) */
    borderInlineWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-left) */
    borderLeft: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-left-color) */
    borderLeftColor: string;
    borderLeftRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-left-style) */
    borderLeftStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-left-width) */
    borderLeftWidth: string;
    borderLimit: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-radius) */
    borderRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-right) */
    borderRight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-right-color) */
    borderRightColor: string;
    borderRightRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-right-style) */
    borderRightStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-right-width) */
    borderRightWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-spacing) */
    borderSpacing: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-start-end-radius) */
    borderStartEndRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-start-start-radius) */
    borderStartStartRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-style) */
    borderStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top) */
    borderTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-color) */
    borderTopColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-left-radius) */
    borderTopLeftRadius: string;
    borderTopRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-right-radius) */
    borderTopRightRadius: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-style) */
    borderTopStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-width) */
    borderTopWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-width) */
    borderWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/bottom) */
    bottom: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-decoration-break) */
    boxDecorationBreak: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-shadow) */
    boxShadow: string;
    boxShadowBlur: string;
    boxShadowColor: string;
    boxShadowOffset: string;
    boxShadowPosition: string;
    boxShadowSpread: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-sizing) */
    boxSizing: string;
    boxSnap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/break-after) */
    breakAfter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/break-before) */
    breakBefore: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/break-inside) */
    breakInside: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/caption-side) */
    captionSide: string;
    caret: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/caret-color) */
    caretColor: string;
    caretShape: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/clear) */
    clear: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/clip)
     */
    clip: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/clip-path) */
    clipPath: string;
    clipRule: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/color) */
    color: string;
    /**
     * @deprecated This is a legacy alias of `printColorAdjust`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/print-color-adjust)
     */
    colorAdjust: string;
    colorInterpolation: string;
    colorInterpolationFilters: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/color-scheme) */
    colorScheme: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-count) */
    columnCount: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-fill) */
    columnFill: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-gap) */
    columnGap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-rule) */
    columnRule: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-rule-color) */
    columnRuleColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-rule-style) */
    columnRuleStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-rule-width) */
    columnRuleWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-span) */
    columnSpan: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/column-width) */
    columnWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/columns) */
    columns: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain) */
    contain: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain-intrinsic-contain-intrinsic-block-size) */
    containIntrinsicBlockSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain-intrinsic-height) */
    containIntrinsicHeight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain-intrinsic-contain-intrinsic-inline-size) */
    containIntrinsicInlineSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain-intrinsic-size) */
    containIntrinsicSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/contain-intrinsic-width) */
    containIntrinsicWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/container) */
    container: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/container-name) */
    containerName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/container-type) */
    containerType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/content) */
    content: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/content-visibility) */
    contentVisibility: string;
    continue: string;
    copyInto: string;
    cornerShape: string;
    corners: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/counter-increment) */
    counterIncrement: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/counter-reset) */
    counterReset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/counter-set) */
    counterSet: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/cssText) */
    cssText: UTF8String;
    cue: string;
    cueAfter: string;
    cueBefore: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/cursor) */
    cursor: string;
    cx: string;
    cy: string;
    d: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/direction) */
    direction: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/display) */
    display: string;
    dominantBaseline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/empty-cells) */
    emptyCells: string;
    fieldSizing: string;
    fill: string;
    fillBreak: string;
    fillColor: string;
    fillImage: string;
    fillOpacity: string;
    fillOrigin: string;
    fillPosition: string;
    fillRepeat: string;
    fillRule: string;
    fillSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/filter) */
    filter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex) */
    flex: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-basis) */
    flexBasis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-direction) */
    flexDirection: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-flow) */
    flexFlow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-grow) */
    flexGrow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-shrink) */
    flexShrink: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-wrap) */
    flexWrap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/float) */
    float: string;
    floatDefer: string;
    floatOffset: string;
    floatReference: string;
    floodColor: string;
    floodOpacity: string;
    flowFrom: string;
    flowInto: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font) */
    font: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-family) */
    fontFamily: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-feature-settings) */
    fontFeatureSettings: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-kerning) */
    fontKerning: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-language-override) */
    fontLanguageOverride: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-optical-sizing) */
    fontOpticalSizing: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-palette) */
    fontPalette: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-size) */
    fontSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-size-adjust) */
    fontSizeAdjust: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-stretch) */
    fontStretch: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-style) */
    fontStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-synthesis) */
    fontSynthesis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-synthesis-position) */
    fontSynthesisPosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-synthesis-small-caps) */
    fontSynthesisSmallCaps: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-synthesis-style) */
    fontSynthesisStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-synthesis-weight) */
    fontSynthesisWeight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant) */
    fontVariant: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-alternates) */
    fontVariantAlternates: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-caps) */
    fontVariantCaps: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-east-asian) */
    fontVariantEastAsian: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-emoji) */
    fontVariantEmoji: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-ligatures) */
    fontVariantLigatures: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-numeric) */
    fontVariantNumeric: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variant-position) */
    fontVariantPosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-variation-settings) */
    fontVariationSettings: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/font-weight) */
    fontWeight: string;
    footnoteDisplay: string;
    footnotePolicy: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/forced-color-adjust) */
    forcedColorAdjust: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/gap) */
    gap: string;
    /** @deprecated */
    glyphOrientationVertical: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid) */
    grid: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-area) */
    gridArea: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-auto-columns) */
    gridAutoColumns: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-auto-flow) */
    gridAutoFlow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-auto-rows) */
    gridAutoRows: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-column) */
    gridColumn: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-column-end) */
    gridColumnEnd: string;
    /** @deprecated This is a legacy alias of `columnGap`. */
    gridColumnGap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-column-start) */
    gridColumnStart: string;
    /** @deprecated This is a legacy alias of `gap`. */
    gridGap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-row) */
    gridRow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-row-end) */
    gridRowEnd: string;
    /** @deprecated This is a legacy alias of `rowGap`. */
    gridRowGap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-row-start) */
    gridRowStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-template) */
    gridTemplate: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-template-areas) */
    gridTemplateAreas: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-template-columns) */
    gridTemplateColumns: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/grid-template-rows) */
    gridTemplateRows: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/hanging-punctuation) */
    hangingPunctuation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/height) */
    height: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/hyphenate-character) */
    hyphenateCharacter: string;
    hyphenateLimitChars: string;
    hyphenateLimitLast: string;
    hyphenateLimitLines: string;
    hyphenateLimitZone: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/hyphens) */
    hyphens: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/image-orientation) */
    imageOrientation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/image-rendering) */
    imageRendering: string;
    imageResolution: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/initial-letter) */
    initialLetter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/initial-letter-align) */
    initialLetterAlign: string;
    initialLetterWrap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inline-size) */
    inlineSize: string;
    inlineSizing: string;
    inputSecurity: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset) */
    inset: string;
    insetArea: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-block) */
    insetBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-block-end) */
    insetBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-block-start) */
    insetBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-inline) */
    insetInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-inline-end) */
    insetInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/inset-inline-start) */
    insetInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/isolation) */
    isolation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/justify-content) */
    justifyContent: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/justify-items) */
    justifyItems: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/justify-self) */
    justifySelf: string;
    layoutOrder: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/left) */
    left: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/letter-spacing) */
    letterSpacing: string;
    lightingColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/line-break) */
    lineBreak: string;
    lineClamp: string;
    lineGrid: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/line-height) */
    lineHeight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/line-height-step) */
    lineHeightStep: string;
    linePadding: string;
    lineSnap: string;
    linkParameters: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/list-style) */
    listStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/list-style-image) */
    listStyleImage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/list-style-position) */
    listStylePosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/list-style-type) */
    listStyleType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin) */
    margin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-block) */
    marginBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-block-end) */
    marginBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-block-start) */
    marginBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-bottom) */
    marginBottom: string;
    marginBreak: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-inline) */
    marginInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-inline-end) */
    marginInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-inline-start) */
    marginInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-left) */
    marginLeft: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-right) */
    marginRight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-top) */
    marginTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/margin-trim) */
    marginTrim: string;
    marker: string;
    markerEnd: string;
    markerMid: string;
    markerSide: string;
    markerStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask) */
    mask: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border) */
    maskBorder: string;
    maskBorderMode: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-outset) */
    maskBorderOutset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-repeat) */
    maskBorderRepeat: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-slice) */
    maskBorderSlice: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-source) */
    maskBorderSource: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-width) */
    maskBorderWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-clip) */
    maskClip: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-composite) */
    maskComposite: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-image) */
    maskImage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-mode) */
    maskMode: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-origin) */
    maskOrigin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-position) */
    maskPosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-repeat) */
    maskRepeat: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-size) */
    maskSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-type) */
    maskType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/masonry-auto-flow) */
    masonryAutoFlow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/math-depth) */
    mathDepth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/math-shift) */
    mathShift: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/math-style) */
    mathStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/max-block-size) */
    maxBlockSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/max-height) */
    maxHeight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/max-inline-size) */
    maxInlineSize: string;
    maxLines: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/max-width) */
    maxWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/min-block-size) */
    minBlockSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/min-height) */
    minHeight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/min-inline-size) */
    minInlineSize: string;
    minIntrinsicSizing: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/min-width) */
    minWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mix-blend-mode) */
    mixBlendMode: string;
    navDown: string;
    navLeft: string;
    navRight: string;
    navUp: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/object-fit) */
    objectFit: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/object-position) */
    objectPosition: string;
    objectViewBox: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset) */
    offset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset-anchor) */
    offsetAnchor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset-distance) */
    offsetDistance: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset-path) */
    offsetPath: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset-position) */
    offsetPosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/offset-rotate) */
    offsetRotate: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/opacity) */
    opacity: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/order) */
    order: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/orphans) */
    orphans: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/outline) */
    outline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/outline-color) */
    outlineColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/outline-offset) */
    outlineOffset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/outline-style) */
    outlineStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/outline-width) */
    outlineWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow) */
    overflow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-anchor) */
    overflowAnchor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-block) */
    overflowBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-clip-margin) */
    overflowClipMargin: string;
    overflowClipMarginBlock: string;
    overflowClipMarginBlockEnd: string;
    overflowClipMarginBlockStart: string;
    overflowClipMarginBottom: string;
    overflowClipMarginInline: string;
    overflowClipMarginInlineEnd: string;
    overflowClipMarginInlineStart: string;
    overflowClipMarginLeft: string;
    overflowClipMarginRight: string;
    overflowClipMarginTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-inline) */
    overflowInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-wrap) */
    overflowWrap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-x) */
    overflowX: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overflow-y) */
    overflowY: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overlay) */
    overlay: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior) */
    overscrollBehavior: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-block) */
    overscrollBehaviorBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-inline) */
    overscrollBehaviorInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-x) */
    overscrollBehaviorX: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/overscroll-behavior-y) */
    overscrollBehaviorY: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding) */
    padding: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-block) */
    paddingBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-block-end) */
    paddingBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-block-start) */
    paddingBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-bottom) */
    paddingBottom: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-inline) */
    paddingInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-inline-end) */
    paddingInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-inline-start) */
    paddingInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-left) */
    paddingLeft: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-right) */
    paddingRight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/padding-top) */
    paddingTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/page) */
    page: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/page-break-after) */
    pageBreakAfter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/page-break-before) */
    pageBreakBefore: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/page-break-inside) */
    pageBreakInside: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/paint-order) */
    paintOrder: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/parentRule) */
    readonly parentRule: CSSRule | null;
    pause: string;
    pauseAfter: string;
    pauseBefore: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/perspective) */
    perspective: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/perspective-origin) */
    perspectiveOrigin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/place-content) */
    placeContent: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/place-items) */
    placeItems: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/place-self) */
    placeSelf: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/pointer-events) */
    pointerEvents: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/position) */
    position: string;
    positionFallback: string;
    positionFallbackBounds: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/print-color-adjust) */
    printColorAdjust: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/quotes) */
    quotes: string;
    r: string;
    readingOrder: string;
    regionFragment: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/resize) */
    resize: string;
    rest: string;
    restAfter: string;
    restBefore: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/right) */
    right: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/rotate) */
    rotate: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/row-gap) */
    rowGap: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/ruby-align) */
    rubyAlign: string;
    rubyMerge: string;
    rubyOverhang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/ruby-position) */
    rubyPosition: string;
    rx: string;
    ry: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scale) */
    scale: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-behavior) */
    scrollBehavior: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin) */
    scrollMargin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-block) */
    scrollMarginBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-block-end) */
    scrollMarginBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-block-start) */
    scrollMarginBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-bottom) */
    scrollMarginBottom: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-inline) */
    scrollMarginInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-inline-end) */
    scrollMarginInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-inline-start) */
    scrollMarginInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-left) */
    scrollMarginLeft: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-right) */
    scrollMarginRight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-margin-top) */
    scrollMarginTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding) */
    scrollPadding: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-block) */
    scrollPaddingBlock: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-block-end) */
    scrollPaddingBlockEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-block-start) */
    scrollPaddingBlockStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-bottom) */
    scrollPaddingBottom: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-inline) */
    scrollPaddingInline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-inline-end) */
    scrollPaddingInlineEnd: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-inline-start) */
    scrollPaddingInlineStart: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-left) */
    scrollPaddingLeft: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-right) */
    scrollPaddingRight: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-padding-top) */
    scrollPaddingTop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-snap-align) */
    scrollSnapAlign: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-snap-stop) */
    scrollSnapStop: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-snap-type) */
    scrollSnapType: string;
    scrollStart: string;
    scrollStartBlock: string;
    scrollStartInline: string;
    scrollStartTarget: string;
    scrollStartTargetBlock: string;
    scrollStartTargetInline: string;
    scrollStartTargetX: string;
    scrollStartTargetY: string;
    scrollStartX: string;
    scrollStartY: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-timeline) */
    scrollTimeline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-timeline-axis) */
    scrollTimelineAxis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scroll-timeline-name) */
    scrollTimelineName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scrollbar-color) */
    scrollbarColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scrollbar-gutter) */
    scrollbarGutter: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/scrollbar-width) */
    scrollbarWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/shape-image-threshold) */
    shapeImageThreshold: string;
    shapeInside: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/shape-margin) */
    shapeMargin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/shape-outside) */
    shapeOutside: string;
    shapePadding: string;
    shapeRendering: string;
    shapeSubtract: string;
    spatialNavigationAction: string;
    spatialNavigationContain: string;
    spatialNavigationFunction: string;
    speak: string;
    speakAs: string;
    stopColor: string;
    stopOpacity: string;
    stringSet: string;
    stroke: string;
    strokeAlign: string;
    strokeAlignment: string;
    strokeBreak: string;
    strokeColor: string;
    strokeDashCorner: string;
    strokeDashJustify: string;
    strokeDashadjust: string;
    strokeDasharray: string;
    strokeDashcorner: string;
    strokeDashoffset: string;
    strokeImage: string;
    strokeLinecap: string;
    strokeLinejoin: string;
    strokeMiterlimit: string;
    strokeOpacity: string;
    strokeOrigin: string;
    strokePosition: string;
    strokeRepeat: string;
    strokeSize: string;
    strokeWidth: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/tab-size) */
    tabSize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/table-layout) */
    tableLayout: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-align) */
    textAlign: string;
    textAlignAll: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-align-last) */
    textAlignLast: string;
    textAnchor: string;
    textAutospace: string;
    textBoxEdge: string;
    textBoxTrim: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-combine-upright) */
    textCombineUpright: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration) */
    textDecoration: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-color) */
    textDecorationColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-line) */
    textDecorationLine: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip) */
    textDecorationSkip: string;
    textDecorationSkipBox: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip-ink) */
    textDecorationSkipInk: string;
    textDecorationSkipSelf: string;
    textDecorationSkipSpaces: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-style) */
    textDecorationStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-decoration-thickness) */
    textDecorationThickness: string;
    textDecorationTrim: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-emphasis) */
    textEmphasis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-emphasis-color) */
    textEmphasisColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-emphasis-position) */
    textEmphasisPosition: string;
    textEmphasisSkip: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-emphasis-style) */
    textEmphasisStyle: string;
    textGroupAlign: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-indent) */
    textIndent: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-justify) */
    textJustify: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-orientation) */
    textOrientation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-overflow) */
    textOverflow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-rendering) */
    textRendering: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-shadow) */
    textShadow: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-size-adjust) */
    textSizeAdjust: string;
    textSpacing: string;
    textSpacingTrim: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-transform) */
    textTransform: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-underline-offset) */
    textUnderlineOffset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-underline-position) */
    textUnderlinePosition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-wrap) */
    textWrap: string;
    textWrapMode: string;
    textWrapStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/timeline-scope) */
    timelineScope: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/top) */
    top: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/touch-action) */
    touchAction: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform) */
    transform: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform-box) */
    transformBox: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform-origin) */
    transformOrigin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform-style) */
    transformStyle: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition) */
    transition: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-behavior) */
    transitionBehavior: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-delay) */
    transitionDelay: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-duration) */
    transitionDuration: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-property) */
    transitionProperty: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-timing-function) */
    transitionTimingFunction: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/translate) */
    translate: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/unicode-bidi) */
    unicodeBidi: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/user-select) */
    userSelect: string;
    vectorEffect: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/vertical-align) */
    verticalAlign: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/view-timeline) */
    viewTimeline: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/view-timeline-axis) */
    viewTimelineAxis: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/view-timeline-inset) */
    viewTimelineInset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/view-timeline-name) */
    viewTimelineName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/view-transition-name) */
    viewTransitionName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/visibility) */
    visibility: string;
    voiceBalance: string;
    voiceDuration: string;
    voiceFamily: string;
    voicePitch: string;
    voiceRange: string;
    voiceRate: string;
    voiceStress: string;
    voiceVolume: string;
    /**
     * @deprecated This is a legacy alias of `alignContent`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-content)
     */
    webkitAlignContent: string;
    /**
     * @deprecated This is a legacy alias of `alignItems`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-items)
     */
    webkitAlignItems: string;
    /**
     * @deprecated This is a legacy alias of `alignSelf`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/align-self)
     */
    webkitAlignSelf: string;
    /**
     * @deprecated This is a legacy alias of `animation`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation)
     */
    webkitAnimation: string;
    /**
     * @deprecated This is a legacy alias of `animationDelay`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-delay)
     */
    webkitAnimationDelay: string;
    /**
     * @deprecated This is a legacy alias of `animationDirection`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-direction)
     */
    webkitAnimationDirection: string;
    /**
     * @deprecated This is a legacy alias of `animationDuration`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-duration)
     */
    webkitAnimationDuration: string;
    /**
     * @deprecated This is a legacy alias of `animationFillMode`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-fill-mode)
     */
    webkitAnimationFillMode: string;
    /**
     * @deprecated This is a legacy alias of `animationIterationCount`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-iteration-count)
     */
    webkitAnimationIterationCount: string;
    /**
     * @deprecated This is a legacy alias of `animationName`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-name)
     */
    webkitAnimationName: string;
    /**
     * @deprecated This is a legacy alias of `animationPlayState`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-play-state)
     */
    webkitAnimationPlayState: string;
    /**
     * @deprecated This is a legacy alias of `animationTimingFunction`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/animation-timing-function)
     */
    webkitAnimationTimingFunction: string;
    /**
     * @deprecated This is a legacy alias of `appearance`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/appearance)
     */
    webkitAppearance: string;
    /**
     * @deprecated This is a legacy alias of `backfaceVisibility`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/backface-visibility)
     */
    webkitBackfaceVisibility: string;
    /**
     * @deprecated This is a legacy alias of `backgroundClip`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-clip)
     */
    webkitBackgroundClip: string;
    /**
     * @deprecated This is a legacy alias of `backgroundOrigin`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-origin)
     */
    webkitBackgroundOrigin: string;
    /**
     * @deprecated This is a legacy alias of `backgroundSize`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/background-size)
     */
    webkitBackgroundSize: string;
    /**
     * @deprecated This is a legacy alias of `borderBottomLeftRadius`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-left-radius)
     */
    webkitBorderBottomLeftRadius: string;
    /**
     * @deprecated This is a legacy alias of `borderBottomRightRadius`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-bottom-right-radius)
     */
    webkitBorderBottomRightRadius: string;
    /**
     * @deprecated This is a legacy alias of `borderRadius`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-radius)
     */
    webkitBorderRadius: string;
    /**
     * @deprecated This is a legacy alias of `borderTopLeftRadius`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-left-radius)
     */
    webkitBorderTopLeftRadius: string;
    /**
     * @deprecated This is a legacy alias of `borderTopRightRadius`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/border-top-right-radius)
     */
    webkitBorderTopRightRadius: string;
    /**
     * @deprecated This is a legacy alias of `boxAlign`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-align)
     */
    webkitBoxAlign: string;
    /**
     * @deprecated This is a legacy alias of `boxFlex`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-flex)
     */
    webkitBoxFlex: string;
    /**
     * @deprecated This is a legacy alias of `boxOrdinalGroup`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-ordinal-group)
     */
    webkitBoxOrdinalGroup: string;
    /**
     * @deprecated This is a legacy alias of `boxOrient`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-orient)
     */
    webkitBoxOrient: string;
    /**
     * @deprecated This is a legacy alias of `boxPack`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-pack)
     */
    webkitBoxPack: string;
    /**
     * @deprecated This is a legacy alias of `boxShadow`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-shadow)
     */
    webkitBoxShadow: string;
    /**
     * @deprecated This is a legacy alias of `boxSizing`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/box-sizing)
     */
    webkitBoxSizing: string;
    /**
     * @deprecated This is a legacy alias of `filter`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/filter)
     */
    webkitFilter: string;
    /**
     * @deprecated This is a legacy alias of `flex`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex)
     */
    webkitFlex: string;
    /**
     * @deprecated This is a legacy alias of `flexBasis`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-basis)
     */
    webkitFlexBasis: string;
    /**
     * @deprecated This is a legacy alias of `flexDirection`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-direction)
     */
    webkitFlexDirection: string;
    /**
     * @deprecated This is a legacy alias of `flexFlow`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-flow)
     */
    webkitFlexFlow: string;
    /**
     * @deprecated This is a legacy alias of `flexGrow`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-grow)
     */
    webkitFlexGrow: string;
    /**
     * @deprecated This is a legacy alias of `flexShrink`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-shrink)
     */
    webkitFlexShrink: string;
    /**
     * @deprecated This is a legacy alias of `flexWrap`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/flex-wrap)
     */
    webkitFlexWrap: string;
    /**
     * @deprecated This is a legacy alias of `justifyContent`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/justify-content)
     */
    webkitJustifyContent: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/-webkit-line-clamp) */
    webkitLineClamp: string;
    /**
     * @deprecated This is a legacy alias of `mask`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask)
     */
    webkitMask: string;
    /**
     * @deprecated This is a legacy alias of `maskBorder`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border)
     */
    webkitMaskBoxImage: string;
    /**
     * @deprecated This is a legacy alias of `maskBorderOutset`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-outset)
     */
    webkitMaskBoxImageOutset: string;
    /**
     * @deprecated This is a legacy alias of `maskBorderRepeat`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-repeat)
     */
    webkitMaskBoxImageRepeat: string;
    /**
     * @deprecated This is a legacy alias of `maskBorderSlice`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-slice)
     */
    webkitMaskBoxImageSlice: string;
    /**
     * @deprecated This is a legacy alias of `maskBorderSource`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-source)
     */
    webkitMaskBoxImageSource: string;
    /**
     * @deprecated This is a legacy alias of `maskBorderWidth`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-border-width)
     */
    webkitMaskBoxImageWidth: string;
    /**
     * @deprecated This is a legacy alias of `maskClip`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-clip)
     */
    webkitMaskClip: string;
    /**
     * @deprecated This is a legacy alias of `maskComposite`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-composite)
     */
    webkitMaskComposite: string;
    /**
     * @deprecated This is a legacy alias of `maskImage`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-image)
     */
    webkitMaskImage: string;
    /**
     * @deprecated This is a legacy alias of `maskOrigin`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-origin)
     */
    webkitMaskOrigin: string;
    /**
     * @deprecated This is a legacy alias of `maskPosition`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-position)
     */
    webkitMaskPosition: string;
    /**
     * @deprecated This is a legacy alias of `maskRepeat`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-repeat)
     */
    webkitMaskRepeat: string;
    /**
     * @deprecated This is a legacy alias of `maskSize`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/mask-size)
     */
    webkitMaskSize: string;
    /**
     * @deprecated This is a legacy alias of `order`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/order)
     */
    webkitOrder: string;
    /**
     * @deprecated This is a legacy alias of `perspective`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/perspective)
     */
    webkitPerspective: string;
    /**
     * @deprecated This is a legacy alias of `perspectiveOrigin`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/perspective-origin)
     */
    webkitPerspectiveOrigin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/-webkit-text-fill-color) */
    webkitTextFillColor: string;
    /**
     * @deprecated This is a legacy alias of `textSizeAdjust`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/text-size-adjust)
     */
    webkitTextSizeAdjust: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/-webkit-text-stroke) */
    webkitTextStroke: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/-webkit-text-stroke-color) */
    webkitTextStrokeColor: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/-webkit-text-stroke-width) */
    webkitTextStrokeWidth: string;
    /**
     * @deprecated This is a legacy alias of `transform`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform)
     */
    webkitTransform: string;
    /**
     * @deprecated This is a legacy alias of `transformOrigin`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform-origin)
     */
    webkitTransformOrigin: string;
    /**
     * @deprecated This is a legacy alias of `transformStyle`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transform-style)
     */
    webkitTransformStyle: string;
    /**
     * @deprecated This is a legacy alias of `transition`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition)
     */
    webkitTransition: string;
    /**
     * @deprecated This is a legacy alias of `transitionDelay`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-delay)
     */
    webkitTransitionDelay: string;
    /**
     * @deprecated This is a legacy alias of `transitionDuration`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-duration)
     */
    webkitTransitionDuration: string;
    /**
     * @deprecated This is a legacy alias of `transitionProperty`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-property)
     */
    webkitTransitionProperty: string;
    /**
     * @deprecated This is a legacy alias of `transitionTimingFunction`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/transition-timing-function)
     */
    webkitTransitionTimingFunction: string;
    /**
     * @deprecated This is a legacy alias of `userSelect`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/user-select)
     */
    webkitUserSelect: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/white-space) */
    whiteSpace: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/white-space-collapse) */
    whiteSpaceCollapse: string;
    whiteSpaceTrim: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/widows) */
    widows: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/width) */
    width: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/will-change) */
    willChange: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/word-break) */
    wordBreak: string;
    wordSpaceTransform: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/word-spacing) */
    wordSpacing: string;
    wordWrap: string;
    wrapAfter: string;
    wrapBefore: string;
    wrapFlow: string;
    wrapInside: string;
    wrapThrough: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/writing-mode) */
    writingMode: string;
    x: string;
    y: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/CSS/z-index) */
    zIndex: string;
    getCSSImageURLs(property: UTF8String): UTF8String[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/getPropertyPriority) */
    getPropertyPriority(property: UTF8String): UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/getPropertyValue) */
    getPropertyValue(property: UTF8String): UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/item) */
    item(index: number): UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/removeProperty) */
    removeProperty(property: UTF8String): UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleDeclaration/setProperty) */
    setProperty(property: UTF8String, value: UTF8String | null, priority?: UTF8String): void;
    [index: number]: UTF8String;
}

declare var CSSStyleDeclaration: {
    prototype: CSSStyleDeclaration;
    new(): CSSStyleDeclaration;
    isInstance(obj): obj is CSSStyleDeclaration;
};

/**
 * CSSStyleRule represents a single CSS style rule. It implements the CSSRule interface with a type value of 1 (CSSRule.STYLE_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleRule)
 */
interface CSSStyleRule extends CSSGroupingRule {
    readonly selectorCount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleRule/selectorText) */
    selectorText: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleRule/style) */
    readonly style: CSSStyleDeclaration;
    getSelectorWarnings(): SelectorWarning[];
    selectorMatchesElement(selectorIndex: number, element: Element, pseudo?: string, includeVisitedStyle?: boolean): boolean;
    selectorSpecificityAt(index: number, desugared?: boolean): number;
    selectorTextAt(index: number, desugared?: boolean): UTF8String;
}

declare var CSSStyleRule: {
    prototype: CSSStyleRule;
    new(): CSSStyleRule;
    isInstance(obj): obj is CSSStyleRule;
};

/**
 * A single CSS style sheet. It inherits properties and methods from its parent, StyleSheet.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet)
 */
interface CSSStyleSheet extends StyleSheet {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/cssRules) */
    readonly cssRules: CSSRuleList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/ownerRule) */
    readonly ownerRule: CSSRule | null;
    readonly parsingMode: CSSStyleSheetParsingMode;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/rules)
     */
    readonly rules: CSSRuleList;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/addRule)
     */
    addRule(selector?: UTF8String, style?: UTF8String, index?: number): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/deleteRule) */
    deleteRule(index: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/insertRule) */
    insertRule(rule: UTF8String, index?: number): number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/removeRule)
     */
    removeRule(index?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/replace) */
    replace(text: UTF8String): Promise<CSSStyleSheet>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSStyleSheet/replaceSync) */
    replaceSync(text: UTF8String): void;
}

declare var CSSStyleSheet: {
    prototype: CSSStyleSheet;
    new(options?: CSSStyleSheetInit): CSSStyleSheet;
    isInstance(obj): obj is CSSStyleSheet;
};

/**
 * An object representing a single CSS @supports at-rule. It implements the CSSConditionRule interface, and therefore the CSSRule and CSSGroupingRule interfaces with a type value of 12 (CSSRule.SUPPORTS_RULE).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSSupportsRule)
 */
interface CSSSupportsRule extends CSSConditionRule {
}

declare var CSSSupportsRule: {
    prototype: CSSSupportsRule;
    new(): CSSSupportsRule;
    isInstance(obj): obj is CSSSupportsRule;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSTransition) */
interface CSSTransition extends Animation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSSTransition/transitionProperty) */
    readonly transitionProperty: string;
    addEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: CSSTransition, ev: AnimationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AnimationEventMap>(type: K, listener: (this: CSSTransition, ev: AnimationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var CSSTransition: {
    prototype: CSSTransition;
    new(): CSSTransition;
    isInstance(obj): obj is CSSTransition;
};

/**
 * Provides a storage mechanism for Request / Response object pairs that are cached, for example as part of the ServiceWorker life cycle. Note that the Cache interface is exposed to windowed scopes as well as workers. You don't have to use it in conjunction with service workers, even though it is defined in the service worker spec.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache)
 */
interface Cache {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/add) */
    add(request: RequestInfo | URL): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/addAll) */
    addAll(requests: RequestInfo[]): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/delete) */
    delete(request: RequestInfo | URL, options?: CacheQueryOptions): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/keys) */
    keys(request?: RequestInfo | URL, options?: CacheQueryOptions): Promise<Request[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/match) */
    match(request: RequestInfo | URL, options?: CacheQueryOptions): Promise<Response>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/matchAll) */
    matchAll(request?: RequestInfo | URL, options?: CacheQueryOptions): Promise<Response[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Cache/put) */
    put(request: RequestInfo | URL, response: Response): Promise<void>;
}

declare var Cache: {
    prototype: Cache;
    new(): Cache;
    isInstance(obj): obj is Cache;
};

/**
 * The storage for Cache objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage)
 */
interface CacheStorage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage/delete) */
    delete(cacheName: string): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage/has) */
    has(cacheName: string): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage/keys) */
    keys(): Promise<string[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage/match) */
    match(request: RequestInfo | URL, options?: MultiCacheQueryOptions): Promise<Response>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CacheStorage/open) */
    open(cacheName: string): Promise<Cache>;
}

declare var CacheStorage: {
    prototype: CacheStorage;
    new(namespace: CacheStorageNamespace, principal: Principal): CacheStorage;
    isInstance(obj): obj is CacheStorage;
};

interface CallbackDebuggerNotification extends DebuggerNotification {
    readonly phase: CallbackDebuggerNotificationPhase;
}

declare var CallbackDebuggerNotification: {
    prototype: CallbackDebuggerNotification;
    new(): CallbackDebuggerNotification;
    isInstance(obj): obj is CallbackDebuggerNotification;
};

interface CanonicalBrowsingContext extends BrowsingContext {
    readonly activeSessionHistoryEntry: nsISHEntry | null;
    readonly currentRemoteType: UTF8String | null;
    readonly currentURI: URI | null;
    readonly currentWindowGlobal: WindowGlobalParent | null;
    readonly embedderWindowGlobal: WindowGlobalParent | null;
    forceAppWindowActive: boolean;
    readonly isReplaced: boolean;
    readonly isUnderHiddenEmbedderElement: boolean;
    readonly mediaController: MediaController | null;
    readonly mostRecentLoadingSessionHistoryEntry: nsISHEntry | null;
    readonly secureBrowserUI: nsISecureBrowserUI | null;
    readonly sessionHistory: nsISHistory | null;
    targetTopLevelLinkClicksToBlank: boolean;
    readonly topChromeWindow: WindowProxy | null;
    touchEventsOverride: TouchEventsOverride;
    readonly webProgress: nsIWebProgress | null;
    clearRestoreState(): void;
    fixupAndLoadURIString(aURI: string, aOptions?: LoadURIOptions): void;
    getWindowGlobals(): WindowGlobalParent[];
    goBack(aCancelContentJSEpoch?: number, aRequireUserInteraction?: boolean, aUserActivation?: boolean): void;
    goForward(aCancelContentJSEpoch?: number, aRequireUserInteraction?: boolean, aUserActivation?: boolean): void;
    goToIndex(aIndex: number, aCancelContentJSEpoch?: number, aUserActivation?: boolean): void;
    loadURI(aURI: URI, aOptions?: LoadURIOptions): void;
    notifyMediaMutedChanged(muted: boolean): void;
    notifyStartDelayedAutoplayMedia(): void;
    print(aPrintSettings: nsIPrintSettings): Promise<void>;
    reload(aReloadFlags: number): void;
    resetScalingZoom(): void;
    setCrossGroupOpener(crossGroupOpener: CanonicalBrowsingContext): void;
    startApzAutoscroll(aAnchorX: number, aAnchorY: number, aScrollId: number, aPresShellId: number): boolean;
    stop(aStopFlags: number): void;
    stopApzAutoscroll(aScrollId: number, aPresShellId: number): void;
}

declare var CanonicalBrowsingContext: {
    prototype: CanonicalBrowsingContext;
    new(): CanonicalBrowsingContext;
    countSiteOrigins(roots: BrowsingContext[]): number;
    isInstance(obj): obj is CanonicalBrowsingContext;
};

interface CanvasCaptureMediaStream extends MediaStream {
    readonly canvas: HTMLCanvasElement;
    requestFrame(): void;
    addEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: CanvasCaptureMediaStream, ev: MediaStreamEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: CanvasCaptureMediaStream, ev: MediaStreamEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var CanvasCaptureMediaStream: {
    prototype: CanvasCaptureMediaStream;
    new(): CanvasCaptureMediaStream;
    isInstance(obj): obj is CanvasCaptureMediaStream;
};

interface CanvasCompositing {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalAlpha) */
    globalAlpha: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalCompositeOperation) */
    globalCompositeOperation: string;
}

interface CanvasDrawImage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawImage) */
    drawImage(image: CanvasImageSource, dx: number, dy: number): void;
    drawImage(image: CanvasImageSource, dx: number, dy: number, dw: number, dh: number): void;
    drawImage(image: CanvasImageSource, sx: number, sy: number, sw: number, sh: number, dx: number, dy: number, dw: number, dh: number): void;
}

interface CanvasDrawPath {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/beginPath) */
    beginPath(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clip) */
    clip(winding?: CanvasWindingRule): void;
    clip(path: Path2D, winding?: CanvasWindingRule): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fill) */
    fill(winding?: CanvasWindingRule): void;
    fill(path: Path2D, winding?: CanvasWindingRule): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInPath) */
    isPointInPath(x: number, y: number, winding?: CanvasWindingRule): boolean;
    isPointInPath(path: Path2D, x: number, y: number, winding?: CanvasWindingRule): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/isPointInStroke) */
    isPointInStroke(x: number, y: number): boolean;
    isPointInStroke(path: Path2D, x: number, y: number): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/stroke) */
    stroke(): void;
    stroke(path: Path2D): void;
}

interface CanvasFillStrokeStyles {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillStyle) */
    fillStyle: UTF8String | CanvasGradient | CanvasPattern;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeStyle) */
    strokeStyle: UTF8String | CanvasGradient | CanvasPattern;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createConicGradient) */
    createConicGradient(angle: number, cx: number, cy: number): CanvasGradient;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createLinearGradient) */
    createLinearGradient(x0: number, y0: number, x1: number, y1: number): CanvasGradient;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createPattern) */
    createPattern(image: CanvasImageSource, repetition: string | null): CanvasPattern | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createRadialGradient) */
    createRadialGradient(x0: number, y0: number, r0: number, x1: number, y1: number, r1: number): CanvasGradient;
}

interface CanvasFilters {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/filter) */
    filter: UTF8String;
}

/**
 * An opaque object describing a gradient. It is returned by the methods CanvasRenderingContext2D.createLinearGradient() or CanvasRenderingContext2D.createRadialGradient().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasGradient)
 */
interface CanvasGradient {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasGradient/addColorStop) */
    addColorStop(offset: number, color: UTF8String): void;
}

declare var CanvasGradient: {
    prototype: CanvasGradient;
    new(): CanvasGradient;
    isInstance(obj): obj is CanvasGradient;
};

interface CanvasImageData {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/createImageData) */
    createImageData(sw: number, sh: number): ImageData;
    createImageData(imagedata: ImageData): ImageData;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getImageData) */
    getImageData(sx: number, sy: number, sw: number, sh: number): ImageData;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/putImageData) */
    putImageData(imagedata: ImageData, dx: number, dy: number): void;
    putImageData(imagedata: ImageData, dx: number, dy: number, dirtyX: number, dirtyY: number, dirtyWidth: number, dirtyHeight: number): void;
}

interface CanvasImageSmoothing {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled) */
    imageSmoothingEnabled: boolean;
}

interface CanvasPathDrawingStyles {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineCap) */
    lineCap: CanvasLineCap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineDashOffset) */
    lineDashOffset: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineJoin) */
    lineJoin: CanvasLineJoin;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/lineWidth) */
    lineWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/miterLimit) */
    miterLimit: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getLineDash) */
    getLineDash(): number[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash) */
    setLineDash(segments: number[]): void;
}

interface CanvasPathMethods {
    arc(x: number, y: number, radius: number, startAngle: number, endAngle: number, anticlockwise?: boolean): void;
    arcTo(x1: number, y1: number, x2: number, y2: number, radius: number): void;
    bezierCurveTo(cp1x: number, cp1y: number, cp2x: number, cp2y: number, x: number, y: number): void;
    closePath(): void;
    ellipse(x: number, y: number, radiusX: number, radiusY: number, rotation: number, startAngle: number, endAngle: number, anticlockwise?: boolean): void;
    lineTo(x: number, y: number): void;
    moveTo(x: number, y: number): void;
    quadraticCurveTo(cpx: number, cpy: number, x: number, y: number): void;
    rect(x: number, y: number, w: number, h: number): void;
    roundRect(x: number, y: number, w: number, h: number, radii?: number | DOMPointInit | (number | DOMPointInit)[]): void;
}

/**
 * An opaque object describing a pattern, based on an image, a canvas, or a video, created by the CanvasRenderingContext2D.createPattern() method.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasPattern)
 */
interface CanvasPattern {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasPattern/setTransform) */
    setTransform(matrix?: DOMMatrix2DInit): void;
}

declare var CanvasPattern: {
    prototype: CanvasPattern;
    new(): CanvasPattern;
    isInstance(obj): obj is CanvasPattern;
};

interface CanvasRect {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/clearRect) */
    clearRect(x: number, y: number, w: number, h: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillRect) */
    fillRect(x: number, y: number, w: number, h: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeRect) */
    strokeRect(x: number, y: number, w: number, h: number): void;
}

/**
 * The CanvasRenderingContext2D interface, part of the Canvas API, provides the 2D rendering context for the drawing surface of a <canvas> element. It is used for drawing shapes, text, images, and other objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D)
 */
interface CanvasRenderingContext2D extends CanvasCompositing, CanvasDrawImage, CanvasDrawPath, CanvasFillStrokeStyles, CanvasFilters, CanvasImageData, CanvasImageSmoothing, CanvasPathDrawingStyles, CanvasPathMethods, CanvasRect, CanvasShadowStyles, CanvasState, CanvasText, CanvasTextDrawingStyles, CanvasTransform, CanvasUserInterface {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/canvas) */
    readonly canvas: HTMLCanvasElement | null;
    demote(): void;
    drawWindow(window: Window, x: number, y: number, w: number, h: number, bgColor: UTF8String, flags?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getContextAttributes) */
    getContextAttributes(): CanvasRenderingContext2DSettings;
    readonly DRAWWINDOW_DRAW_CARET: 0x01;
    readonly DRAWWINDOW_DO_NOT_FLUSH: 0x02;
    readonly DRAWWINDOW_DRAW_VIEW: 0x04;
    readonly DRAWWINDOW_USE_WIDGET_LAYERS: 0x08;
    readonly DRAWWINDOW_ASYNC_DECODE_IMAGES: 0x10;
}

declare var CanvasRenderingContext2D: {
    prototype: CanvasRenderingContext2D;
    new(): CanvasRenderingContext2D;
    readonly DRAWWINDOW_DRAW_CARET: 0x01;
    readonly DRAWWINDOW_DO_NOT_FLUSH: 0x02;
    readonly DRAWWINDOW_DRAW_VIEW: 0x04;
    readonly DRAWWINDOW_USE_WIDGET_LAYERS: 0x08;
    readonly DRAWWINDOW_ASYNC_DECODE_IMAGES: 0x10;
    isInstance(obj): obj is CanvasRenderingContext2D;
};

interface CanvasShadowStyles {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowBlur) */
    shadowBlur: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowColor) */
    shadowColor: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetX) */
    shadowOffsetX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/shadowOffsetY) */
    shadowOffsetY: number;
}

interface CanvasState {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/reset) */
    reset(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/restore) */
    restore(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/save) */
    save(): void;
}

interface CanvasText {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fillText) */
    fillText(text: string, x: number, y: number, maxWidth?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/measureText) */
    measureText(text: string): TextMetrics;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/strokeText) */
    strokeText(text: string, x: number, y: number, maxWidth?: number): void;
}

interface CanvasTextDrawingStyles {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/direction) */
    direction: CanvasDirection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/font) */
    font: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontKerning) */
    fontKerning: CanvasFontKerning;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontStretch) */
    fontStretch: CanvasFontStretch;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/fontVariantCaps) */
    fontVariantCaps: CanvasFontVariantCaps;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/letterSpacing) */
    letterSpacing: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textAlign) */
    textAlign: CanvasTextAlign;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textBaseline) */
    textBaseline: CanvasTextBaseline;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/textRendering) */
    textRendering: CanvasTextRendering;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/wordSpacing) */
    wordSpacing: UTF8String;
}

interface CanvasTransform {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/getTransform) */
    getTransform(): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/resetTransform) */
    resetTransform(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/rotate) */
    rotate(angle: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/scale) */
    scale(x: number, y: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setTransform) */
    setTransform(a: number, b: number, c: number, d: number, e: number, f: number): void;
    setTransform(transform?: DOMMatrix2DInit): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/transform) */
    transform(a: number, b: number, c: number, d: number, e: number, f: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/translate) */
    translate(x: number, y: number): void;
}

interface CanvasUserInterface {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawFocusIfNeeded) */
    drawFocusIfNeeded(element: Element): void;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CaretPosition) */
interface CaretPosition {
    readonly offset: number;
    readonly offsetNode: Node | null;
    getClientRect(): DOMRect | null;
}

declare var CaretPosition: {
    prototype: CaretPosition;
    new(): CaretPosition;
    isInstance(obj): obj is CaretPosition;
};

interface CaretStateChangedEvent extends Event {
    readonly boundingClientRect: DOMRectReadOnly | null;
    readonly caretVisible: boolean;
    readonly caretVisuallyVisible: boolean;
    readonly clientX: number;
    readonly clientY: number;
    readonly collapsed: boolean;
    readonly reason: CaretChangedReason;
    readonly selectedTextContent: string;
    readonly selectionEditable: boolean;
    readonly selectionVisible: boolean;
}

declare var CaretStateChangedEvent: {
    prototype: CaretStateChangedEvent;
    new(type: string, eventInit?: CaretStateChangedEventInit): CaretStateChangedEvent;
    isInstance(obj): obj is CaretStateChangedEvent;
};

/**
 * The ChannelMergerNode interface, often used in conjunction with its opposite, ChannelSplitterNode, reunites different mono inputs into a single output. Each input is used to fill a channel of the output. This is useful for accessing each channels separately, e.g. for performing channel mixing where gain must be separately controlled on each channel.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ChannelMergerNode)
 */
interface ChannelMergerNode extends AudioNode {
}

declare var ChannelMergerNode: {
    prototype: ChannelMergerNode;
    new(context: BaseAudioContext, options?: ChannelMergerOptions): ChannelMergerNode;
    isInstance(obj): obj is ChannelMergerNode;
};

/**
 * The ChannelSplitterNode interface, often used in conjunction with its opposite, ChannelMergerNode, separates the different channels of an audio source into a set of mono outputs. This is useful for accessing each channel separately, e.g. for performing channel mixing where gain must be separately controlled on each channel.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ChannelSplitterNode)
 */
interface ChannelSplitterNode extends AudioNode {
}

declare var ChannelSplitterNode: {
    prototype: ChannelSplitterNode;
    new(context: BaseAudioContext, options?: ChannelSplitterOptions): ChannelSplitterNode;
    isInstance(obj): obj is ChannelSplitterNode;
};

interface ChannelWrapperEventMap {
    "error": ErrorEvent;
    "start": Event;
    "stop": Event;
}

interface ChannelWrapper extends EventTarget {
    readonly browserElement: nsISupports | null;
    readonly canModify: boolean;
    channel: MozChannel | null;
    contentType: string;
    readonly documentURI: URI | null;
    readonly documentURL: string | null;
    readonly errorString: string | null;
    readonly finalURI: URI;
    readonly finalURL: string;
    readonly frameAncestors: MozFrameAncestorInfo[] | null;
    readonly frameId: number;
    readonly id: number;
    readonly isServiceWorkerScript: boolean;
    readonly isSystemLoad: boolean;
    readonly loadInfo: LoadInfo | null;
    readonly method: string;
    onerror: OnErrorEventHandler;
    onstart: ((this: ChannelWrapper, ev: Event) => any) | null;
    onstop: ((this: ChannelWrapper, ev: Event) => any) | null;
    readonly originURI: URI | null;
    readonly originURL: string | null;
    readonly parentFrameId: number;
    readonly proxyInfo: MozProxyInfo | null;
    readonly remoteAddress: string | null;
    readonly requestSize: number;
    readonly responseSize: number;
    readonly statusCode: number;
    readonly statusLine: string;
    readonly suspended: boolean;
    readonly thirdParty: boolean;
    readonly type: MozContentPolicyType;
    readonly urlClassification: MozUrlClassification | null;
    cancel(result: number, reason?: number): void;
    errorCheck(): void;
    getRequestHeader(header: string): string | null;
    getRequestHeaders(): MozHTTPHeader[];
    getResponseHeaders(): MozHTTPHeader[];
    matches(filter?: MozRequestFilter, extension?: WebExtensionPolicy | null, options?: MozRequestMatchOptions): boolean;
    redirectTo(url: URI): void;
    registerTraceableChannel(extension: WebExtensionPolicy, remoteTab: RemoteTab | null): void;
    resume(): void;
    setRequestHeader(header: string, value: string, merge?: boolean): void;
    setResponseHeader(header: string, value: string, merge?: boolean): void;
    suspend(profileMarkerText: string): void;
    upgradeToSecure(): void;
    addEventListener<K extends keyof ChannelWrapperEventMap>(type: K, listener: (this: ChannelWrapper, ev: ChannelWrapperEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ChannelWrapperEventMap>(type: K, listener: (this: ChannelWrapper, ev: ChannelWrapperEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ChannelWrapper: {
    prototype: ChannelWrapper;
    new(): ChannelWrapper;
    get(channel: MozChannel): ChannelWrapper;
    getRegisteredChannel(aChannelId: number, extension: WebExtensionPolicy, remoteTab: RemoteTab | null): ChannelWrapper | null;
    isInstance(obj): obj is ChannelWrapper;
};

/**
 * The CharacterData abstract interface represents a Node object that contains characters. This is an abstract interface, meaning there aren't any object of type CharacterData: it is implemented by other interfaces, like Text, Comment, or ProcessingInstruction which aren't abstract.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData)
 */
interface CharacterData extends Node, ChildNode, NonDocumentTypeChildNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/data) */
    data: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/appendData) */
    appendData(data: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/deleteData) */
    deleteData(offset: number, count: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/insertData) */
    insertData(offset: number, data: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/replaceData) */
    replaceData(offset: number, count: number, data: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/substringData) */
    substringData(offset: number, count: number): string;
}

declare var CharacterData: {
    prototype: CharacterData;
    new(): CharacterData;
    isInstance(obj): obj is CharacterData;
};

interface CheckerboardReportService {
    flushActiveReports(): void;
    getReports(): CheckerboardReport[];
    isRecordingEnabled(): boolean;
    setRecordingEnabled(aEnabled: boolean): void;
}

declare var CheckerboardReportService: {
    prototype: CheckerboardReportService;
    new(): CheckerboardReportService;
    isInstance(obj): obj is CheckerboardReportService;
};

interface ChildNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/after) */
    after(...nodes: (Node | string)[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/before) */
    before(...nodes: (Node | string)[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/remove) */
    remove(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/replaceWith) */
    replaceWith(...nodes: (Node | string)[]): void;
}

interface ChildProcessMessageManager extends SyncMessageSender {
}

declare var ChildProcessMessageManager: {
    prototype: ChildProcessMessageManager;
    new(): ChildProcessMessageManager;
    isInstance(obj): obj is ChildProcessMessageManager;
};

interface ChildSHistory {
    readonly count: number;
    readonly index: number;
    readonly legacySHistory: nsISHistory;
    canGo(aOffset: number): boolean;
    go(aOffset: number, aRequireUserInteraction?: boolean, aUserActivation?: boolean): void;
    reload(aReloadFlags: number): void;
}

declare var ChildSHistory: {
    prototype: ChildSHistory;
    new(): ChildSHistory;
    isInstance(obj): obj is ChildSHistory;
};

interface ChromeMessageBroadcaster extends MessageBroadcaster, FrameScriptLoader {
}

declare var ChromeMessageBroadcaster: {
    prototype: ChromeMessageBroadcaster;
    new(): ChromeMessageBroadcaster;
    isInstance(obj): obj is ChromeMessageBroadcaster;
};

interface ChromeMessageSender extends MessageSender, FrameScriptLoader {
}

declare var ChromeMessageSender: {
    prototype: ChromeMessageSender;
    new(): ChromeMessageSender;
    isInstance(obj): obj is ChromeMessageSender;
};

interface ChromeNodeList extends NodeList {
    append(aNode: Node): void;
    remove(aNode: Node): void;
}

declare var ChromeNodeList: {
    prototype: ChromeNodeList;
    new(): ChromeNodeList;
    isInstance(obj): obj is ChromeNodeList;
};

interface ChromeWorker extends Worker {
    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: ChromeWorker, ev: WorkerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: ChromeWorker, ev: WorkerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ChromeWorker: {
    prototype: ChromeWorker;
    new(scriptURL: string | URL, options?: WorkerOptions): ChromeWorker;
    isInstance(obj): obj is ChromeWorker;
};

/**
 * The Client interface represents an executable context such as a Worker, or a SharedWorker. Window clients are represented by the more-specific WindowClient. You can get Client/WindowClient objects from methods such as Clients.matchAll() and Clients.get().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client)
 */
interface Client {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client/frameType) */
    readonly frameType: FrameType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client/type) */
    readonly type: ClientType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Client/postMessage) */
    postMessage(message: any, transfer: any[]): void;
    postMessage(message: any, aOptions?: StructuredSerializeOptions): void;
}

declare var Client: {
    prototype: Client;
    new(): Client;
    isInstance(obj): obj is Client;
};

/**
 * Provides access to Client objects. Access it via self.clients within a service worker.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clients)
 */
interface Clients {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clients/claim) */
    claim(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clients/get) */
    get(id: string): Promise<Client | undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clients/matchAll) */
    matchAll(options?: ClientQueryOptions): Promise<Client[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clients/openWindow) */
    openWindow(url: string | URL): Promise<WindowClient | null>;
}

declare var Clients: {
    prototype: Clients;
    new(): Clients;
    isInstance(obj): obj is Clients;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clipboard)
 */
interface Clipboard extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clipboard/read) */
    read(): Promise<ClipboardItems>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clipboard/readText) */
    readText(): Promise<string>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clipboard/write) */
    write(data: ClipboardItems): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Clipboard/writeText) */
    writeText(data: string): Promise<void>;
}

declare var Clipboard: {
    prototype: Clipboard;
    new(): Clipboard;
    isInstance(obj): obj is Clipboard;
};

/**
 * Events providing information related to modification of the clipboard, that is cut, copy, and paste events.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardEvent)
 */
interface ClipboardEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardEvent/clipboardData) */
    readonly clipboardData: DataTransfer | null;
}

declare var ClipboardEvent: {
    prototype: ClipboardEvent;
    new(type: string, eventInitDict?: ClipboardEventInit): ClipboardEvent;
    isInstance(obj): obj is ClipboardEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardItem)
 */
interface ClipboardItem {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardItem/presentationStyle) */
    readonly presentationStyle: PresentationStyle;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardItem/types) */
    readonly types: string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ClipboardItem/getType) */
    getType(type: string): Promise<Blob>;
}

declare var ClipboardItem: {
    prototype: ClipboardItem;
    new(items: Record<string, ClipboardItemDataType | PromiseLike<ClipboardItemDataType>>, options?: ClipboardItemOptions): ClipboardItem;
    isInstance(obj): obj is ClipboardItem;
};

interface ClonedErrorHolder {
}

declare var ClonedErrorHolder: {
    prototype: ClonedErrorHolder;
    new(aError: any): ClonedErrorHolder;
    isInstance(obj): obj is ClonedErrorHolder;
};

/**
 * A CloseEvent is sent to clients using WebSockets when the connection is closed. This is delivered to the listener indicated by the WebSocket object's onclose attribute.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CloseEvent)
 */
interface CloseEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CloseEvent/code) */
    readonly code: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CloseEvent/reason) */
    readonly reason: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CloseEvent/wasClean) */
    readonly wasClean: boolean;
}

declare var CloseEvent: {
    prototype: CloseEvent;
    new(type: string, eventInitDict?: CloseEventInit): CloseEvent;
    isInstance(obj): obj is CloseEvent;
};

interface CommandEvent extends Event {
    readonly command: string | null;
}

declare var CommandEvent: {
    prototype: CommandEvent;
    new(): CommandEvent;
    isInstance(obj): obj is CommandEvent;
};

/**
 * Textual notations within markup; although it is generally not visually shown, such comments are available to be read in the source view.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Comment)
 */
interface Comment extends CharacterData {
}

declare var Comment: {
    prototype: Comment;
    new(data?: string): Comment;
    isInstance(obj): obj is Comment;
};

/**
 * The DOM CompositionEvent represents events that occur due to the user indirectly entering text.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompositionEvent)
 */
interface CompositionEvent extends UIEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompositionEvent/data) */
    readonly data: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompositionEvent/locale)
     */
    readonly locale: string;
    readonly ranges: TextClause[];
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompositionEvent/initCompositionEvent)
     */
    initCompositionEvent(typeArg: string, canBubbleArg?: boolean, cancelableArg?: boolean, viewArg?: Window | null, dataArg?: string | null, localeArg?: string): void;
}

declare var CompositionEvent: {
    prototype: CompositionEvent;
    new(type: string, eventInitDict?: CompositionEventInit): CompositionEvent;
    isInstance(obj): obj is CompositionEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompressionStream) */
interface CompressionStream extends GenericTransformStream {
}

declare var CompressionStream: {
    prototype: CompressionStream;
    new(format: CompressionFormat): CompressionStream;
    isInstance(obj): obj is CompressionStream;
};

interface ConsoleInstance {
    assert(condition?: boolean, ...data: any[]): void;
    clear(): void;
    count(label?: string): void;
    countReset(label?: string): void;
    debug(...data: any[]): void;
    dir(...data: any[]): void;
    dirxml(...data: any[]): void;
    error(...data: any[]): void;
    exception(...data: any[]): void;
    group(...data: any[]): void;
    groupCollapsed(...data: any[]): void;
    groupEnd(): void;
    info(...data: any[]): void;
    log(...data: any[]): void;
    profile(...data: any[]): void;
    profileEnd(...data: any[]): void;
    reportForServiceWorkerScope(scope: string, message: string, filename: string, lineNumber: number, columnNumber: number, level: ConsoleLevel): void;
    table(...data: any[]): void;
    time(label?: string): void;
    timeEnd(label?: string): void;
    timeLog(label?: string, ...data: any[]): void;
    timeStamp(data?: any): void;
    trace(...data: any[]): void;
    warn(...data: any[]): void;
}

declare var ConsoleInstance: {
    prototype: ConsoleInstance;
    new(): ConsoleInstance;
    isInstance(obj): obj is ConsoleInstance;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode) */
interface ConstantSourceNode extends AudioScheduledSourceNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ConstantSourceNode/offset) */
    readonly offset: AudioParam;
    addEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: ConstantSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: ConstantSourceNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ConstantSourceNode: {
    prototype: ConstantSourceNode;
    new(context: BaseAudioContext, options?: ConstantSourceOptions): ConstantSourceNode;
    isInstance(obj): obj is ConstantSourceNode;
};

interface ContentFrameMessageManager extends EventTarget, MessageListenerManagerMixin, MessageManagerGlobal, MessageSenderMixin, SyncMessageSenderMixin {
    readonly content: WindowProxy | null;
    readonly docShell: nsIDocShell | null;
    readonly tabEventTarget: nsIEventTarget | null;
}

declare var ContentFrameMessageManager: {
    prototype: ContentFrameMessageManager;
    new(): ContentFrameMessageManager;
    isInstance(obj): obj is ContentFrameMessageManager;
};

interface ContentProcessMessageManager extends MessageListenerManagerMixin, MessageManagerGlobal, MessageSenderMixin, SyncMessageSenderMixin {
    readonly initialProcessData: any;
    readonly sharedData: MozSharedMap | null;
}

declare var ContentProcessMessageManager: {
    prototype: ContentProcessMessageManager;
    new(): ContentProcessMessageManager;
    isInstance(obj): obj is ContentProcessMessageManager;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ContentVisibilityAutoStateChangeEvent) */
interface ContentVisibilityAutoStateChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ContentVisibilityAutoStateChangeEvent/skipped) */
    readonly skipped: boolean;
}

declare var ContentVisibilityAutoStateChangeEvent: {
    prototype: ContentVisibilityAutoStateChangeEvent;
    new(type: string, eventInitDict?: ContentVisibilityAutoStateChangeEventInit): ContentVisibilityAutoStateChangeEvent;
    isInstance(obj): obj is ContentVisibilityAutoStateChangeEvent;
};

/**
 * An AudioNode that performs a Linear Convolution on a given AudioBuffer, often used to achieve a reverb effect. A ConvolverNode always has exactly one input and one output.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ConvolverNode)
 */
interface ConvolverNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ConvolverNode/buffer) */
    buffer: AudioBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ConvolverNode/normalize) */
    normalize: boolean;
}

declare var ConvolverNode: {
    prototype: ConvolverNode;
    new(context: BaseAudioContext, options?: ConvolverOptions): ConvolverNode;
    isInstance(obj): obj is ConvolverNode;
};

/**
 * This Streams API interface provides a built-in byte length queuing strategy that can be used when constructing streams.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CountQueuingStrategy)
 */
interface CountQueuingStrategy {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CountQueuingStrategy/highWaterMark) */
    readonly highWaterMark: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CountQueuingStrategy/size) */
    readonly size: Function;
}

declare var CountQueuingStrategy: {
    prototype: CountQueuingStrategy;
    new(init: QueuingStrategyInit): CountQueuingStrategy;
    isInstance(obj): obj is CountQueuingStrategy;
};

interface CreateOfferRequest {
    readonly callID: string;
    readonly innerWindowID: number;
    readonly isSecure: boolean;
    readonly windowID: number;
}

declare var CreateOfferRequest: {
    prototype: CreateOfferRequest;
    new(): CreateOfferRequest;
    isInstance(obj): obj is CreateOfferRequest;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Credential)
 */
interface Credential {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Credential/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Credential/type) */
    readonly type: string;
}

declare var Credential: {
    prototype: Credential;
    new(): Credential;
    isInstance(obj): obj is Credential;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CredentialsContainer)
 */
interface CredentialsContainer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CredentialsContainer/create) */
    create(options?: CredentialCreationOptions): Promise<Credential | null>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CredentialsContainer/get) */
    get(options?: CredentialRequestOptions): Promise<Credential | null>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CredentialsContainer/preventSilentAccess) */
    preventSilentAccess(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CredentialsContainer/store) */
    store(credential: Credential): Promise<Credential>;
}

declare var CredentialsContainer: {
    prototype: CredentialsContainer;
    new(): CredentialsContainer;
    isInstance(obj): obj is CredentialsContainer;
};

/**
 * Basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto)
 */
interface Crypto {
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto/subtle)
     */
    readonly subtle: SubtleCrypto;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto/getRandomValues) */
    getRandomValues(array: ArrayBufferView): ArrayBufferView;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Crypto/randomUUID)
     */
    randomUUID(): UTF8String;
}

declare var Crypto: {
    prototype: Crypto;
    new(): Crypto;
    isInstance(obj): obj is Crypto;
};

/**
 * The CryptoKey dictionary of the Web Crypto API represents a cryptographic key.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CryptoKey)
 */
interface CryptoKey {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CryptoKey/algorithm) */
    readonly algorithm: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CryptoKey/extractable) */
    readonly extractable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CryptoKey/type) */
    readonly type: KeyType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CryptoKey/usages) */
    readonly usages: KeyUsage[];
}

declare var CryptoKey: {
    prototype: CryptoKey;
    new(): CryptoKey;
    isInstance(obj): obj is CryptoKey;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry) */
interface CustomElementRegistry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/define) */
    define(name: string, constructor: CustomElementConstructor, options?: ElementDefinitionOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/get) */
    get(name: string): CustomElementConstructor | undefined;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/getName) */
    getName(constructor: CustomElementConstructor): string | null;
    setElementCreationCallback(name: string, callback: CustomElementCreationCallback): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/upgrade) */
    upgrade(root: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomElementRegistry/whenDefined) */
    whenDefined(name: string): Promise<CustomElementConstructor>;
}

declare var CustomElementRegistry: {
    prototype: CustomElementRegistry;
    new(): CustomElementRegistry;
    isInstance(obj): obj is CustomElementRegistry;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomEvent) */
interface CustomEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomEvent/detail) */
    readonly detail: any;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomEvent/initCustomEvent)
     */
    initCustomEvent(type: string, canBubble?: boolean, cancelable?: boolean, detail?: any): void;
}

declare var CustomEvent: {
    prototype: CustomEvent;
    new(type: string, eventInitDict?: CustomEventInit): CustomEvent;
    isInstance(obj): obj is CustomEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CustomStateSet) */
interface CustomStateSet {
    forEach(callbackfn: (value: string, key: string, parent: CustomStateSet) => void, thisArg?: any): void;
}

declare var CustomStateSet: {
    prototype: CustomStateSet;
    new(): CustomStateSet;
    isInstance(obj): obj is CustomStateSet;
};

/**
 * An abnormal event (called an exception) which occurs as a result of calling a method or accessing a property of a web API.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException)
 */
interface DOMException extends ExceptionMembers {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/code)
     */
    readonly code: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/message) */
    readonly message: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMException/name) */
    readonly name: string;
    readonly INDEX_SIZE_ERR: 1;
    readonly DOMSTRING_SIZE_ERR: 2;
    readonly HIERARCHY_REQUEST_ERR: 3;
    readonly WRONG_DOCUMENT_ERR: 4;
    readonly INVALID_CHARACTER_ERR: 5;
    readonly NO_DATA_ALLOWED_ERR: 6;
    readonly NO_MODIFICATION_ALLOWED_ERR: 7;
    readonly NOT_FOUND_ERR: 8;
    readonly NOT_SUPPORTED_ERR: 9;
    readonly INUSE_ATTRIBUTE_ERR: 10;
    readonly INVALID_STATE_ERR: 11;
    readonly SYNTAX_ERR: 12;
    readonly INVALID_MODIFICATION_ERR: 13;
    readonly NAMESPACE_ERR: 14;
    readonly INVALID_ACCESS_ERR: 15;
    readonly VALIDATION_ERR: 16;
    readonly TYPE_MISMATCH_ERR: 17;
    readonly SECURITY_ERR: 18;
    readonly NETWORK_ERR: 19;
    readonly ABORT_ERR: 20;
    readonly URL_MISMATCH_ERR: 21;
    readonly QUOTA_EXCEEDED_ERR: 22;
    readonly TIMEOUT_ERR: 23;
    readonly INVALID_NODE_TYPE_ERR: 24;
    readonly DATA_CLONE_ERR: 25;
}

declare var DOMException: {
    prototype: DOMException;
    new(message?: string, name?: string): DOMException;
    readonly INDEX_SIZE_ERR: 1;
    readonly DOMSTRING_SIZE_ERR: 2;
    readonly HIERARCHY_REQUEST_ERR: 3;
    readonly WRONG_DOCUMENT_ERR: 4;
    readonly INVALID_CHARACTER_ERR: 5;
    readonly NO_DATA_ALLOWED_ERR: 6;
    readonly NO_MODIFICATION_ALLOWED_ERR: 7;
    readonly NOT_FOUND_ERR: 8;
    readonly NOT_SUPPORTED_ERR: 9;
    readonly INUSE_ATTRIBUTE_ERR: 10;
    readonly INVALID_STATE_ERR: 11;
    readonly SYNTAX_ERR: 12;
    readonly INVALID_MODIFICATION_ERR: 13;
    readonly NAMESPACE_ERR: 14;
    readonly INVALID_ACCESS_ERR: 15;
    readonly VALIDATION_ERR: 16;
    readonly TYPE_MISMATCH_ERR: 17;
    readonly SECURITY_ERR: 18;
    readonly NETWORK_ERR: 19;
    readonly ABORT_ERR: 20;
    readonly URL_MISMATCH_ERR: 21;
    readonly QUOTA_EXCEEDED_ERR: 22;
    readonly TIMEOUT_ERR: 23;
    readonly INVALID_NODE_TYPE_ERR: 24;
    readonly DATA_CLONE_ERR: 25;
    isInstance(obj): obj is DOMException;
};

/**
 * An object providing methods which are not dependent on any particular document. Such an object is returned by the Document.implementation property.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMImplementation)
 */
interface DOMImplementation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMImplementation/createDocument) */
    createDocument(namespace: string | null, qualifiedName: string | null, doctype?: DocumentType | null): Document;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMImplementation/createDocumentType) */
    createDocumentType(qualifiedName: string, publicId: string, systemId: string): DocumentType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMImplementation/createHTMLDocument) */
    createHTMLDocument(title?: string): Document;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMImplementation/hasFeature)
     */
    hasFeature(): boolean;
}

declare var DOMImplementation: {
    prototype: DOMImplementation;
    new(): DOMImplementation;
    isInstance(obj): obj is DOMImplementation;
};

interface DOMLocalization extends Localization {
    connectRoot(aElement: Node): void;
    disconnectRoot(aElement: Node): void;
    getAttributes(aElement: Element): L10nIdArgs;
    pauseObserving(): void;
    resumeObserving(): void;
    setArgs(aElement: Element, aArgs?: any): void;
    setAttributes(aElement: Element, aId: string, aArgs?: any): void;
    translateElements(aElements: Element[]): Promise<void>;
    translateFragment(aNode: Node): Promise<any>;
    translateRoots(): Promise<void>;
}

declare var DOMLocalization: {
    prototype: DOMLocalization;
    new(aResourceIds: L10nResourceId[], aSync?: boolean, aRegistry?: L10nRegistry, aLocales?: UTF8String[]): DOMLocalization;
    isInstance(obj): obj is DOMLocalization;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrix) */
interface DOMMatrix extends DOMMatrixReadOnly {
    a: number;
    b: number;
    c: number;
    d: number;
    e: number;
    f: number;
    m11: number;
    m12: number;
    m13: number;
    m14: number;
    m21: number;
    m22: number;
    m23: number;
    m24: number;
    m31: number;
    m32: number;
    m33: number;
    m34: number;
    m41: number;
    m42: number;
    m43: number;
    m44: number;
    invertSelf(): DOMMatrix;
    multiplySelf(other?: DOMMatrixInit): DOMMatrix;
    preMultiplySelf(other?: DOMMatrixInit): DOMMatrix;
    rotateAxisAngleSelf(x?: number, y?: number, z?: number, angle?: number): DOMMatrix;
    rotateFromVectorSelf(x?: number, y?: number): DOMMatrix;
    rotateSelf(rotX?: number, rotY?: number, rotZ?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrix/scale3dSelf) */
    scale3dSelf(scale?: number, originX?: number, originY?: number, originZ?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrix/scaleSelf) */
    scaleSelf(scaleX?: number, scaleY?: number, scaleZ?: number, originX?: number, originY?: number, originZ?: number): DOMMatrix;
    setMatrixValue(transformList: UTF8String): DOMMatrix;
    skewXSelf(sx?: number): DOMMatrix;
    skewYSelf(sy?: number): DOMMatrix;
    translateSelf(tx?: number, ty?: number, tz?: number): DOMMatrix;
}

declare var DOMMatrix: {
    prototype: DOMMatrix;
    new(init?: UTF8String | number[] | DOMMatrixReadOnly): DOMMatrix;
    fromFloat32Array(array32: Float32Array): DOMMatrix;
    fromFloat64Array(array64: Float64Array): DOMMatrix;
    fromMatrix(other?: DOMMatrixInit): DOMMatrix;
    isInstance(obj): obj is DOMMatrix;
};

type WebKitCSSMatrix = DOMMatrix;
declare var WebKitCSSMatrix: typeof DOMMatrix;

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly) */
interface DOMMatrixReadOnly {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/a) */
    readonly a: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/b) */
    readonly b: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/c) */
    readonly c: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/d) */
    readonly d: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/e) */
    readonly e: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/f) */
    readonly f: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/is2D) */
    readonly is2D: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/isIdentity) */
    readonly isIdentity: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m11) */
    readonly m11: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m12) */
    readonly m12: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m13) */
    readonly m13: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m14) */
    readonly m14: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m21) */
    readonly m21: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m22) */
    readonly m22: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m23) */
    readonly m23: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m24) */
    readonly m24: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m31) */
    readonly m31: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m32) */
    readonly m32: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m33) */
    readonly m33: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m34) */
    readonly m34: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m41) */
    readonly m41: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m42) */
    readonly m42: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m43) */
    readonly m43: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/m44) */
    readonly m44: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/flipX) */
    flipX(): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/flipY) */
    flipY(): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/inverse) */
    inverse(): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/multiply) */
    multiply(other?: DOMMatrixInit): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/rotate) */
    rotate(rotX?: number, rotY?: number, rotZ?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/rotateAxisAngle) */
    rotateAxisAngle(x?: number, y?: number, z?: number, angle?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/rotateFromVector) */
    rotateFromVector(x?: number, y?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/scale) */
    scale(scaleX?: number, scaleY?: number, scaleZ?: number, originX?: number, originY?: number, originZ?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/scale3d) */
    scale3d(scale?: number, originX?: number, originY?: number, originZ?: number): DOMMatrix;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/scaleNonUniform)
     */
    scaleNonUniform(scaleX?: number, scaleY?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/skewX) */
    skewX(sx?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/skewY) */
    skewY(sy?: number): DOMMatrix;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/toFloat32Array) */
    toFloat32Array(): Float32Array;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/toFloat64Array) */
    toFloat64Array(): Float64Array;
    toJSON(): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/transformPoint) */
    transformPoint(point?: DOMPointInit): DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMMatrixReadOnly/translate) */
    translate(tx?: number, ty?: number, tz?: number): DOMMatrix;
    toString(): string;
}

declare var DOMMatrixReadOnly: {
    prototype: DOMMatrixReadOnly;
    new(init?: UTF8String | number[] | DOMMatrixReadOnly): DOMMatrixReadOnly;
    fromFloat32Array(array32: Float32Array): DOMMatrixReadOnly;
    fromFloat64Array(array64: Float64Array): DOMMatrixReadOnly;
    fromMatrix(other?: DOMMatrixInit): DOMMatrixReadOnly;
    isInstance(obj): obj is DOMMatrixReadOnly;
};

/**
 * Provides the ability to parse XML or HTML source code from a string into a DOM Document.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMParser)
 */
interface DOMParser {
    forceEnableDTD(): void;
    forceEnableXULXBL(): void;
    parseFromBuffer(buf: number[], type: SupportedType): Document;
    parseFromBuffer(buf: Uint8Array, type: SupportedType): Document;
    parseFromSafeString(str: string, type: SupportedType): Document;
    parseFromStream(stream: InputStream, charset: string | null, contentLength: number, type: SupportedType): Document;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMParser/parseFromString) */
    parseFromString(str: string, type: SupportedType): Document;
}

declare var DOMParser: {
    prototype: DOMParser;
    new(): DOMParser;
    isInstance(obj): obj is DOMParser;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint) */
interface DOMPoint extends DOMPointReadOnly {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint/w) */
    w: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint/x) */
    x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint/y) */
    y: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint/z) */
    z: number;
}

declare var DOMPoint: {
    prototype: DOMPoint;
    new(x?: number, y?: number, z?: number, w?: number): DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPoint/fromPoint_static) */
    fromPoint(other?: DOMPointInit): DOMPoint;
    isInstance(obj): obj is DOMPoint;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly) */
interface DOMPointReadOnly {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/w) */
    readonly w: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/x) */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/y) */
    readonly y: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/z) */
    readonly z: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/matrixTransform) */
    matrixTransform(matrix?: DOMMatrixInit): DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/toJSON) */
    toJSON(): any;
}

declare var DOMPointReadOnly: {
    prototype: DOMPointReadOnly;
    new(x?: number, y?: number, z?: number, w?: number): DOMPointReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMPointReadOnly/fromPoint_static) */
    fromPoint(other?: DOMPointInit): DOMPointReadOnly;
    isInstance(obj): obj is DOMPointReadOnly;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad) */
interface DOMQuad {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad/p1) */
    readonly p1: DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad/p2) */
    readonly p2: DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad/p3) */
    readonly p3: DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad/p4) */
    readonly p4: DOMPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMQuad/getBounds) */
    getBounds(): DOMRectReadOnly;
    toJSON(): any;
}

declare var DOMQuad: {
    prototype: DOMQuad;
    new(p1?: DOMPointInit, p2?: DOMPointInit, p3?: DOMPointInit, p4?: DOMPointInit): DOMQuad;
    new(rect: DOMRectReadOnly): DOMQuad;
    fromQuad(other?: DOMQuadInit): DOMQuad;
    fromRect(other?: DOMRectInit): DOMQuad;
    isInstance(obj): obj is DOMQuad;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRect) */
interface DOMRect extends DOMRectReadOnly {
    height: number;
    width: number;
    x: number;
    y: number;
}

declare var DOMRect: {
    prototype: DOMRect;
    new(x?: number, y?: number, width?: number, height?: number): DOMRect;
    fromRect(other?: DOMRectInit): DOMRect;
    isInstance(obj): obj is DOMRect;
};

interface DOMRectList {
    readonly length: number;
    item(index: number): DOMRect | null;
    [index: number]: DOMRect;
}

declare var DOMRectList: {
    prototype: DOMRectList;
    new(): DOMRectList;
    isInstance(obj): obj is DOMRectList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly) */
interface DOMRectReadOnly {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/bottom) */
    readonly bottom: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/left) */
    readonly left: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/right) */
    readonly right: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/top) */
    readonly top: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/width) */
    readonly width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/x) */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/y) */
    readonly y: number;
    toJSON(): any;
}

declare var DOMRectReadOnly: {
    prototype: DOMRectReadOnly;
    new(x?: number, y?: number, width?: number, height?: number): DOMRectReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMRectReadOnly/fromRect_static) */
    fromRect(other?: DOMRectInit): DOMRectReadOnly;
    isInstance(obj): obj is DOMRectReadOnly;
};

interface DOMRequest extends EventTarget, DOMRequestShared {
    fireDetailedError(aError: DOMException): void;
    then(fulfillCallback?: AnyCallback | null, rejectCallback?: AnyCallback | null): any;
    addEventListener<K extends keyof DOMRequestSharedEventMap>(type: K, listener: (this: DOMRequest, ev: DOMRequestSharedEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DOMRequestSharedEventMap>(type: K, listener: (this: DOMRequest, ev: DOMRequestSharedEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var DOMRequest: {
    prototype: DOMRequest;
    new(): DOMRequest;
    isInstance(obj): obj is DOMRequest;
};

interface DOMRequestSharedEventMap {
    "error": ErrorEvent;
    "success": Event;
}

interface DOMRequestShared {
    "error": ErrorEvent;
    onerror: OnErrorEventHandler;
    onsuccess: ((this: DOMRequestShared, ev: Event) => any) | null;
    readonly readyState: DOMRequestReadyState;
    readonly result: any;
    addEventListener<K extends keyof DOMRequestSharedEventMap>(type: K, listener: (this: DOMRequestShared, ev: DOMRequestSharedEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DOMRequestSharedEventMap>(type: K, listener: (this: DOMRequestShared, ev: DOMRequestSharedEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/**
 * A type returned by some APIs which contains a list of DOMString (strings).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMStringList)
 */
interface DOMStringList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMStringList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMStringList/contains) */
    contains(string: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMStringList/item) */
    item(index: number): string | null;
    [index: number]: string;
}

declare var DOMStringList: {
    prototype: DOMStringList;
    new(): DOMStringList;
    isInstance(obj): obj is DOMStringList;
};

/**
 * Used by the dataset HTML attribute to represent data for custom attributes added to elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMStringMap)
 */
interface DOMStringMap {
}

declare var DOMStringMap: {
    prototype: DOMStringMap;
    new(): DOMStringMap;
    isInstance(obj): obj is DOMStringMap;
};

/**
 * A set of space-separated tokens. Such a set is returned by Element.classList, HTMLLinkElement.relList, HTMLAnchorElement.relList, HTMLAreaElement.relList, HTMLIframeElement.sandbox, or HTMLOutputElement.htmlFor. It is indexed beginning with 0 as with JavaScript Array objects. DOMTokenList is always case-sensitive.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList)
 */
interface DOMTokenList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/value) */
    value: string;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/add) */
    add(...tokens: string[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/contains) */
    contains(token: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/item) */
    item(index: number): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/remove) */
    remove(...tokens: string[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/replace) */
    replace(token: string, newToken: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/supports) */
    supports(token: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DOMTokenList/toggle) */
    toggle(token: string, force?: boolean): boolean;
    forEach(callbackfn: (value: string | null, key: number, parent: DOMTokenList) => void, thisArg?: any): void;
    [index: number]: string;
}

declare var DOMTokenList: {
    prototype: DOMTokenList;
    new(): DOMTokenList;
    isInstance(obj): obj is DOMTokenList;
};

/**
 * Used to hold the data that is being dragged during a drag and drop operation. It may hold one or more data items, each of one or more data types. For more information about drag and drop, see HTML Drag and Drop API.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer)
 */
interface DataTransfer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/dropEffect) */
    dropEffect: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/effectAllowed) */
    effectAllowed: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/files) */
    readonly files: FileList | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/items) */
    readonly items: DataTransferItemList;
    readonly mozCSP: ContentSecurityPolicy | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/mozCursor) */
    mozCursor: string;
    readonly mozItemCount: number;
    mozShowFailAnimation: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/mozSourceNode) */
    readonly mozSourceNode: Node | null;
    readonly mozTriggeringPrincipalURISpec: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/mozUserCancelled) */
    readonly mozUserCancelled: boolean;
    readonly sourceTopWindowContext: WindowContext | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/types) */
    readonly types: string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/addElement) */
    addElement(element: Element): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/clearData) */
    clearData(format?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/getData) */
    getData(format: string): string;
    mozClearDataAt(format: string, index: number): void;
    mozCloneForEvent(event: string): DataTransfer;
    mozGetDataAt(format: string, index: number): any;
    mozSetDataAt(format: string, data: any, index: number): void;
    mozTypesAt(index: number): DOMStringList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/setData) */
    setData(format: string, data: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransfer/setDragImage) */
    setDragImage(image: Element, x: number, y: number): void;
    updateDragImage(image: Element, x: number, y: number): void;
}

declare var DataTransfer: {
    prototype: DataTransfer;
    new(): DataTransfer;
    isInstance(obj): obj is DataTransfer;
};

/**
 * One drag data item. During a drag operation, each drag event has a dataTransfer property which contains a list of drag data items. Each item in the list is a DataTransferItem object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem)
 */
interface DataTransferItem {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem/kind) */
    readonly kind: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem/type) */
    readonly type: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem/getAsFile) */
    getAsFile(): File | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem/getAsString) */
    getAsString(callback: FunctionStringCallback | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItem/webkitGetAsEntry) */
    webkitGetAsEntry(): FileSystemEntry | null;
}

declare var DataTransferItem: {
    prototype: DataTransferItem;
    new(): DataTransferItem;
    isInstance(obj): obj is DataTransferItem;
};

/**
 * A list of DataTransferItem objects representing items being dragged. During a drag operation, each DragEvent has a dataTransfer property and that property is a DataTransferItemList.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItemList)
 */
interface DataTransferItemList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItemList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItemList/add) */
    add(data: string, type: string): DataTransferItem | null;
    add(data: File): DataTransferItem | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItemList/clear) */
    clear(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DataTransferItemList/remove) */
    remove(index: number): void;
    [index: number]: DataTransferItem;
}

declare var DataTransferItemList: {
    prototype: DataTransferItemList;
    new(): DataTransferItemList;
    isInstance(obj): obj is DataTransferItemList;
};

interface DebuggerNotification {
    readonly global: any;
    readonly type: DebuggerNotificationType;
}

declare var DebuggerNotification: {
    prototype: DebuggerNotification;
    new(): DebuggerNotification;
    isInstance(obj): obj is DebuggerNotification;
};

interface DebuggerNotificationObserver {
    addListener(handler: DebuggerNotificationCallback): boolean;
    connect(global: any): boolean;
    disconnect(global: any): boolean;
    removeListener(handler: DebuggerNotificationCallback): boolean;
}

declare var DebuggerNotificationObserver: {
    prototype: DebuggerNotificationObserver;
    new(): DebuggerNotificationObserver;
    isInstance(obj): obj is DebuggerNotificationObserver;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DecompressionStream) */
interface DecompressionStream extends GenericTransformStream {
}

declare var DecompressionStream: {
    prototype: DecompressionStream;
    new(format: CompressionFormat): DecompressionStream;
    isInstance(obj): obj is DecompressionStream;
};

interface DedicatedWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
    "message": Event;
    "messageerror": Event;
    "rtctransform": Event;
}

/**
 * (the Worker global scope) is accessible through the self keyword. Some additional global functions, namespaces objects, and constructors, not typically associated with the worker global scope, but available on it, are listed in the JavaScript Reference. See also: Functions available to workers.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope)
 */
interface DedicatedWorkerGlobalScope extends WorkerGlobalScope, AnimationFrameProvider {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/message_event) */
    onmessage: ((this: DedicatedWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/messageerror_event) */
    onmessageerror: ((this: DedicatedWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/rtctransform_event) */
    onrtctransform: ((this: DedicatedWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DedicatedWorkerGlobalScope/postMessage) */
    postMessage(message: any, transfer: any[]): void;
    postMessage(message: any, options?: StructuredSerializeOptions): void;
    addEventListener<K extends keyof DedicatedWorkerGlobalScopeEventMap>(type: K, listener: (this: DedicatedWorkerGlobalScope, ev: DedicatedWorkerGlobalScopeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DedicatedWorkerGlobalScopeEventMap>(type: K, listener: (this: DedicatedWorkerGlobalScope, ev: DedicatedWorkerGlobalScopeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var DedicatedWorkerGlobalScope: {
    prototype: DedicatedWorkerGlobalScope;
    new(): DedicatedWorkerGlobalScope;
    isInstance(obj): obj is DedicatedWorkerGlobalScope;
};

/**
 * A delay-line; an AudioNode audio-processing module that causes a delay between the arrival of an input data and its propagation to the output.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DelayNode)
 */
interface DelayNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DelayNode/delayTime) */
    readonly delayTime: AudioParam;
}

declare var DelayNode: {
    prototype: DelayNode;
    new(context: BaseAudioContext, options?: DelayOptions): DelayNode;
    isInstance(obj): obj is DelayNode;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody) */
interface DeprecationReportBody extends ReportBody {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/anticipatedRemoval) */
    readonly anticipatedRemoval: DOMTimeStamp | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/columnNumber) */
    readonly columnNumber: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/lineNumber) */
    readonly lineNumber: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/message) */
    readonly message: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeprecationReportBody/sourceFile) */
    readonly sourceFile: string | null;
}

declare var DeprecationReportBody: {
    prototype: DeprecationReportBody;
    new(): DeprecationReportBody;
    isInstance(obj): obj is DeprecationReportBody;
};

/** Provides information about the amount of acceleration the device is experiencing along all three axes. */
interface DeviceAcceleration {
    readonly x: number | null;
    readonly y: number | null;
    readonly z: number | null;
}

/** The DeviceLightEvent provides web developers with information from photo sensors or similiar detectors about ambient light levels near the device. For example this may be useful to adjust the screen's brightness based on the current ambient light level in order to save energy or provide better readability. */
interface DeviceLightEvent extends Event {
    readonly value: number;
}

declare var DeviceLightEvent: {
    prototype: DeviceLightEvent;
    new(type: string, eventInitDict?: DeviceLightEventInit): DeviceLightEvent;
    isInstance(obj): obj is DeviceLightEvent;
};

/**
 * The DeviceMotionEvent provides web developers with information about the speed of changes for the device's position and orientation.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent)
 */
interface DeviceMotionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent/acceleration) */
    readonly acceleration: DeviceAcceleration | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent/accelerationIncludingGravity) */
    readonly accelerationIncludingGravity: DeviceAcceleration | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent/interval) */
    readonly interval: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent/rotationRate) */
    readonly rotationRate: DeviceRotationRate | null;
    initDeviceMotionEvent(type: string, canBubble?: boolean, cancelable?: boolean, acceleration?: DeviceAccelerationInit, accelerationIncludingGravity?: DeviceAccelerationInit, rotationRate?: DeviceRotationRateInit, interval?: number | null): void;
}

declare var DeviceMotionEvent: {
    prototype: DeviceMotionEvent;
    new(type: string, eventInitDict?: DeviceMotionEventInit): DeviceMotionEvent;
    isInstance(obj): obj is DeviceMotionEvent;
};

/**
 * The DeviceOrientationEvent provides web developers with information from the physical orientation of the device running the web page.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent)
 */
interface DeviceOrientationEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent/absolute) */
    readonly absolute: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent/alpha) */
    readonly alpha: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent/beta) */
    readonly beta: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent/gamma) */
    readonly gamma: number | null;
    initDeviceOrientationEvent(type: string, canBubble?: boolean, cancelable?: boolean, alpha?: number | null, beta?: number | null, gamma?: number | null, absolute?: boolean): void;
}

declare var DeviceOrientationEvent: {
    prototype: DeviceOrientationEvent;
    new(type: string, eventInitDict?: DeviceOrientationEventInit): DeviceOrientationEvent;
    isInstance(obj): obj is DeviceOrientationEvent;
};

/** Provides information about the rate at which the device is rotating around all three axes. */
interface DeviceRotationRate {
    readonly alpha: number | null;
    readonly beta: number | null;
    readonly gamma: number | null;
}

interface Directory {
    readonly name: string;
    readonly path: string;
    getFiles(recursiveFlag?: boolean): Promise<File[]>;
    getFilesAndDirectories(): Promise<(File | Directory)[]>;
}

declare var Directory: {
    prototype: Directory;
    new(path: string): Directory;
    isInstance(obj): obj is Directory;
};

interface DocumentEventMap extends GlobalEventHandlersEventMap, OnErrorEventHandlerForNodesEventMap, TouchEventHandlersEventMap {
    "afterscriptexecute": Event;
    "beforescriptexecute": Event;
    "fullscreenchange": Event;
    "fullscreenerror": Event;
    "pointerlockchange": Event;
    "pointerlockerror": Event;
    "readystatechange": Event;
    "visibilitychange": Event;
}

/**
 * Any web page loaded in the browser and serves as an entry point into the web page's content, which is the DOM tree.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document)
 */
interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GeometryUtils, GlobalEventHandlers, OnErrorEventHandlerForNodes, ParentNode, TouchEventHandlers, XPathEvaluatorMixin {
    /**
     * Sets or gets the URL for the current document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/URL)
     */
    readonly URL: string;
    /**
     * Sets or gets the color of all active links in the document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/alinkColor)
     */
    alinkColor: string;
    /**
     * Returns a reference to the collection of elements contained by the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/all)
     */
    readonly all: HTMLAllCollection;
    /**
     * Retrieves a collection of all a objects that have a name and/or id property. Objects in this collection are in HTML source order.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/anchors)
     */
    readonly anchors: HTMLCollection;
    /**
     * Retrieves a collection of all applet objects in the document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/applets)
     */
    readonly applets: HTMLCollection;
    /**
     * Deprecated. Sets or retrieves a value that indicates the background color behind the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/bgColor)
     */
    bgColor: string;
    readonly blockedNodeByClassifierCount: number;
    readonly blockedNodesByClassifier: NodeList;
    /**
     * Specifies the beginning and end of the document body.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/body)
     */
    body: HTMLElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/characterSet) */
    readonly characterSet: string;
    /**
     * Gets or sets the character set used to encode the object.
     * @deprecated This is a legacy alias of `characterSet`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/characterSet)
     */
    readonly charset: string;
    readonly commandDispatcher: XULCommandDispatcher | null;
    /**
     * Gets a value that indicates whether standards-compliant mode is switched on for the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/compatMode)
     */
    readonly compatMode: string;
    readonly contentLanguage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/contentType) */
    readonly contentType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/cookie) */
    cookie: string;
    readonly cookieJarSettings: nsICookieJarSettings;
    readonly csp: ContentSecurityPolicy | null;
    readonly cspJSON: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/currentScript) */
    readonly currentScript: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/defaultView) */
    readonly defaultView: WindowProxy | null;
    /**
     * Sets or gets a value that indicates whether the document can be edited.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/designMode)
     */
    designMode: string;
    devToolsAnonymousAndShadowEventsEnabled: boolean;
    devToolsWatchingDOMMutations: boolean;
    /**
     * Sets or retrieves a value that indicates the reading order of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/dir)
     */
    dir: string;
    /**
     * Gets an object representing the document type declaration associated with the current document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/doctype)
     */
    readonly doctype: DocumentType | null;
    /**
     * Gets a reference to the root node of the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/documentElement)
     */
    readonly documentElement: Element | null;
    readonly documentLoadGroup: nsILoadGroup | null;
    readonly documentReadyForIdle: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/documentURI) */
    readonly documentURI: string;
    readonly documentURIObject: URI | null;
    /**
     * Sets or gets the security domain of the document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/domain)
     */
    domain: string;
    readonly effectiveStoragePrincipal: Principal;
    /**
     * Retrieves a collection of all embed objects in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/embeds)
     */
    readonly embeds: HTMLCollection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/featurePolicy) */
    readonly featurePolicy: FeaturePolicy;
    /**
     * Sets or gets the foreground (text) color of the document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fgColor)
     */
    fgColor: string;
    /**
     * Retrieves a collection, in source order, of all form objects in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/forms)
     */
    readonly forms: HTMLCollection;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreen)
     */
    readonly fullscreen: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreenEnabled) */
    readonly fullscreenEnabled: boolean;
    readonly hasBeenUserGestureActivated: boolean;
    readonly hasPendingL10nMutations: boolean;
    readonly hasValidTransientUserGestureActivation: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/head) */
    readonly head: HTMLHeadElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/hidden) */
    readonly hidden: boolean;
    /**
     * Retrieves a collection, in source order, of img objects in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/images)
     */
    readonly images: HTMLCollection;
    /**
     * Gets the implementation object of the current document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/implementation)
     */
    readonly implementation: DOMImplementation;
    /**
     * Returns the character encoding used to create the webpage that is loaded into the document object.
     * @deprecated This is a legacy alias of `characterSet`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/characterSet)
     */
    readonly inputEncoding: string;
    readonly isInitialDocument: boolean;
    readonly isSrcdocDocument: boolean;
    readonly l10n: DocumentL10n | null;
    /**
     * Gets the date that the page was last modified, if the page supplies one.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/lastModified)
     */
    readonly lastModified: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/lastStyleSheetSet)
     */
    readonly lastStyleSheetSet: string | null;
    readonly lastUserGestureTimeStamp: DOMHighResTimeStamp;
    /**
     * Sets or gets the color of the document links.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/linkColor)
     */
    linkColor: string;
    /**
     * Retrieves a collection of all a objects that specify the href property and all area objects in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)
     */
    readonly links: HTMLCollection;
    readonly loadedFromPrototype: boolean;
    /**
     * Contains information about the current URL.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/location)
     */
    readonly location: Location | null;
    readonly mozDocumentURIIfNotForErrorPages: URI | null;
    /**
     * @deprecated This is a legacy alias of `fullscreen`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreen)
     */
    readonly mozFullScreen: boolean;
    /**
     * @deprecated This is a legacy alias of `fullscreenEnabled`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreenEnabled)
     */
    readonly mozFullScreenEnabled: boolean;
    readonly mozSyntheticDocument: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/afterscriptexecute_event) */
    onafterscriptexecute: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/beforescriptexecute_event) */
    onbeforescriptexecute: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreenchange_event) */
    onfullscreenchange: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreenerror_event) */
    onfullscreenerror: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/pointerlockchange_event) */
    onpointerlockchange: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/pointerlockerror_event) */
    onpointerlockerror: ((this: Document, ev: Event) => any) | null;
    /**
     * Fires when the state of the object has changed.
     * @param ev The event
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/readystatechange_event)
     */
    onreadystatechange: ((this: Document, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/visibilitychange_event) */
    onvisibilitychange: ((this: Document, ev: Event) => any) | null;
    readonly partitionedPrincipal: Principal;
    readonly permDelegateHandler: nsIPermissionDelegateHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/plugins) */
    readonly plugins: HTMLCollection;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/preferredStyleSheetSet)
     */
    readonly preferredStyleSheetSet: string | null;
    /**
     * Retrieves a value that indicates the current state of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/readyState)
     */
    readonly readyState: string;
    /**
     * Gets the URL of the location that referred the user to the current page.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/referrer)
     */
    readonly referrer: string;
    readonly referrerInfo: nsIReferrerInfo;
    readonly referrerPolicy: ReferrerPolicy;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/rootElement)
     */
    readonly rootElement: SVGSVGElement | null;
    readonly sandboxFlagsAsString: string | null;
    /**
     * Retrieves a collection of all script objects in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/scripts)
     */
    readonly scripts: HTMLCollection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/scrollingElement) */
    readonly scrollingElement: Element | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/selectedStyleSheetSet)
     */
    selectedStyleSheetSet: string | null;
    styleSheetChangeEventsEnabled: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/styleSheetSets)
     */
    readonly styleSheetSets: DOMStringList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/timeline) */
    readonly timeline: DocumentTimeline;
    /**
     * Contains the title of the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/title)
     */
    title: string;
    readonly userHasInteracted: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/visibilityState) */
    readonly visibilityState: VisibilityState;
    /**
     * Sets or gets the color of the links that the user has visited.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/vlinkColor)
     */
    vlinkColor: string;
    addCertException(isTemporary: boolean): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/adoptNode) */
    adoptNode(node: Node): Node;
    blockParsing(promise: any, options?: BlockParsingOptions): Promise<any>;
    blockUnblockOnload(block: boolean): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/captureEvents)
     */
    captureEvents(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/caretPositionFromPoint) */
    caretPositionFromPoint(x: number, y: number): CaretPosition | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/clear)
     */
    clear(): void;
    clearUserGestureActivation(): void;
    /**
     * Closes an output stream and forces the sent data to display.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/close)
     */
    close(): void;
    completeStorageAccessRequestFromSite(serializedSite: string): Promise<void>;
    consumeTransientUserGestureActivation(): boolean;
    /**
     * Creates an attribute object with a specified name.
     * @param name String that sets the attribute object's name.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createAttribute)
     */
    createAttribute(name: string): Attr;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createAttributeNS) */
    createAttributeNS(namespace: string | null, name: string): Attr;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createCDATASection) */
    createCDATASection(data: string): CDATASection;
    /**
     * Creates a comment object with the specified data.
     * @param data Sets the comment object's data.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createComment)
     */
    createComment(data: string): Comment;
    /**
     * Creates a new document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createDocumentFragment)
     */
    createDocumentFragment(): DocumentFragment;
    /**
     * Creates an instance of the element for the specified tag.
     * @param tagName The name of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElement)
     */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createElementNS) */
    createElementNS(namespace: string | null, qualifiedName: string, options?: ElementCreationOptions | string): Element;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createEvent) */
    createEvent(eventInterface: "AddonEvent"): AddonEvent;
    createEvent(eventInterface: "AnimationEvent"): AnimationEvent;
    createEvent(eventInterface: "AnimationPlaybackEvent"): AnimationPlaybackEvent;
    createEvent(eventInterface: "AudioProcessingEvent"): AudioProcessingEvent;
    createEvent(eventInterface: "BeforeUnloadEvent"): BeforeUnloadEvent;
    createEvent(eventInterface: "BlobEvent"): BlobEvent;
    createEvent(eventInterface: "CaretStateChangedEvent"): CaretStateChangedEvent;
    createEvent(eventInterface: "ClipboardEvent"): ClipboardEvent;
    createEvent(eventInterface: "CloseEvent"): CloseEvent;
    createEvent(eventInterface: "CommandEvent"): CommandEvent;
    createEvent(eventInterface: "CompositionEvent"): CompositionEvent;
    createEvent(eventInterface: "ContentVisibilityAutoStateChangeEvent"): ContentVisibilityAutoStateChangeEvent;
    createEvent(eventInterface: "CustomEvent"): CustomEvent;
    createEvent(eventInterface: "DeviceLightEvent"): DeviceLightEvent;
    createEvent(eventInterface: "DeviceMotionEvent"): DeviceMotionEvent;
    createEvent(eventInterface: "DeviceOrientationEvent"): DeviceOrientationEvent;
    createEvent(eventInterface: "DragEvent"): DragEvent;
    createEvent(eventInterface: "ErrorEvent"): ErrorEvent;
    createEvent(eventInterface: "ExtendableEvent"): ExtendableEvent;
    createEvent(eventInterface: "ExtendableMessageEvent"): ExtendableMessageEvent;
    createEvent(eventInterface: "FetchEvent"): FetchEvent;
    createEvent(eventInterface: "FocusEvent"): FocusEvent;
    createEvent(eventInterface: "FontFaceSetLoadEvent"): FontFaceSetLoadEvent;
    createEvent(eventInterface: "FormDataEvent"): FormDataEvent;
    createEvent(eventInterface: "FrameCrashedEvent"): FrameCrashedEvent;
    createEvent(eventInterface: "GPUUncapturedErrorEvent"): GPUUncapturedErrorEvent;
    createEvent(eventInterface: "GamepadAxisMoveEvent"): GamepadAxisMoveEvent;
    createEvent(eventInterface: "GamepadButtonEvent"): GamepadButtonEvent;
    createEvent(eventInterface: "GamepadEvent"): GamepadEvent;
    createEvent(eventInterface: "HashChangeEvent"): HashChangeEvent;
    createEvent(eventInterface: "IDBVersionChangeEvent"): IDBVersionChangeEvent;
    createEvent(eventInterface: "ImageCaptureErrorEvent"): ImageCaptureErrorEvent;
    createEvent(eventInterface: "InputEvent"): InputEvent;
    createEvent(eventInterface: "InvokeEvent"): InvokeEvent;
    createEvent(eventInterface: "KeyboardEvent"): KeyboardEvent;
    createEvent(eventInterface: "MIDIConnectionEvent"): MIDIConnectionEvent;
    createEvent(eventInterface: "MIDIMessageEvent"): MIDIMessageEvent;
    createEvent(eventInterface: "MediaEncryptedEvent"): MediaEncryptedEvent;
    createEvent(eventInterface: "MediaKeyMessageEvent"): MediaKeyMessageEvent;
    createEvent(eventInterface: "MediaQueryListEvent"): MediaQueryListEvent;
    createEvent(eventInterface: "MediaRecorderErrorEvent"): MediaRecorderErrorEvent;
    createEvent(eventInterface: "MediaStreamEvent"): MediaStreamEvent;
    createEvent(eventInterface: "MediaStreamTrackEvent"): MediaStreamTrackEvent;
    createEvent(eventInterface: "MerchantValidationEvent"): MerchantValidationEvent;
    createEvent(eventInterface: "MessageEvent"): MessageEvent;
    createEvent(eventInterface: "MouseEvent"): MouseEvent;
    createEvent(eventInterface: "MouseEvents"): MouseEvent;
    createEvent(eventInterface: "MouseScrollEvent"): MouseScrollEvent;
    createEvent(eventInterface: "MozApplicationEvent"): MozApplicationEvent;
    createEvent(eventInterface: "MozSharedMapChangeEvent"): MozSharedMapChangeEvent;
    createEvent(eventInterface: "MutationEvent"): MutationEvent;
    createEvent(eventInterface: "MutationEvents"): MutationEvent;
    createEvent(eventInterface: "NotificationEvent"): NotificationEvent;
    createEvent(eventInterface: "NotifyPaintEvent"): NotifyPaintEvent;
    createEvent(eventInterface: "OfflineAudioCompletionEvent"): OfflineAudioCompletionEvent;
    createEvent(eventInterface: "PageTransitionEvent"): PageTransitionEvent;
    createEvent(eventInterface: "PaymentMethodChangeEvent"): PaymentMethodChangeEvent;
    createEvent(eventInterface: "PaymentRequestUpdateEvent"): PaymentRequestUpdateEvent;
    createEvent(eventInterface: "PerformanceEntryEvent"): PerformanceEntryEvent;
    createEvent(eventInterface: "PluginCrashedEvent"): PluginCrashedEvent;
    createEvent(eventInterface: "PointerEvent"): PointerEvent;
    createEvent(eventInterface: "PopStateEvent"): PopStateEvent;
    createEvent(eventInterface: "PopupBlockedEvent"): PopupBlockedEvent;
    createEvent(eventInterface: "PopupPositionedEvent"): PopupPositionedEvent;
    createEvent(eventInterface: "PositionStateEvent"): PositionStateEvent;
    createEvent(eventInterface: "ProgressEvent"): ProgressEvent;
    createEvent(eventInterface: "PromiseRejectionEvent"): PromiseRejectionEvent;
    createEvent(eventInterface: "PushEvent"): PushEvent;
    createEvent(eventInterface: "RTCDTMFToneChangeEvent"): RTCDTMFToneChangeEvent;
    createEvent(eventInterface: "RTCDataChannelEvent"): RTCDataChannelEvent;
    createEvent(eventInterface: "RTCPeerConnectionIceEvent"): RTCPeerConnectionIceEvent;
    createEvent(eventInterface: "RTCTrackEvent"): RTCTrackEvent;
    createEvent(eventInterface: "RTCTransformEvent"): RTCTransformEvent;
    createEvent(eventInterface: "ScrollAreaEvent"): ScrollAreaEvent;
    createEvent(eventInterface: "ScrollViewChangeEvent"): ScrollViewChangeEvent;
    createEvent(eventInterface: "SecurityPolicyViolationEvent"): SecurityPolicyViolationEvent;
    createEvent(eventInterface: "SimpleGestureEvent"): SimpleGestureEvent;
    createEvent(eventInterface: "SpeechRecognitionEvent"): SpeechRecognitionEvent;
    createEvent(eventInterface: "SpeechSynthesisErrorEvent"): SpeechSynthesisErrorEvent;
    createEvent(eventInterface: "SpeechSynthesisEvent"): SpeechSynthesisEvent;
    createEvent(eventInterface: "StorageEvent"): StorageEvent;
    createEvent(eventInterface: "StreamFilterDataEvent"): StreamFilterDataEvent;
    createEvent(eventInterface: "StyleSheetApplicableStateChangeEvent"): StyleSheetApplicableStateChangeEvent;
    createEvent(eventInterface: "StyleSheetRemovedEvent"): StyleSheetRemovedEvent;
    createEvent(eventInterface: "SubmitEvent"): SubmitEvent;
    createEvent(eventInterface: "TCPServerSocketEvent"): TCPServerSocketEvent;
    createEvent(eventInterface: "TCPSocketErrorEvent"): TCPSocketErrorEvent;
    createEvent(eventInterface: "TCPSocketEvent"): TCPSocketEvent;
    createEvent(eventInterface: "TaskPriorityChangeEvent"): TaskPriorityChangeEvent;
    createEvent(eventInterface: "TimeEvent"): TimeEvent;
    createEvent(eventInterface: "ToggleEvent"): ToggleEvent;
    createEvent(eventInterface: "TouchEvent"): TouchEvent;
    createEvent(eventInterface: "TrackEvent"): TrackEvent;
    createEvent(eventInterface: "TransitionEvent"): TransitionEvent;
    createEvent(eventInterface: "UDPMessageEvent"): UDPMessageEvent;
    createEvent(eventInterface: "UIEvent"): UIEvent;
    createEvent(eventInterface: "UIEvents"): UIEvent;
    createEvent(eventInterface: "UserProximityEvent"): UserProximityEvent;
    createEvent(eventInterface: "VRDisplayEvent"): VRDisplayEvent;
    createEvent(eventInterface: "WebGLContextEvent"): WebGLContextEvent;
    createEvent(eventInterface: "WheelEvent"): WheelEvent;
    createEvent(eventInterface: "XRInputSourceEvent"): XRInputSourceEvent;
    createEvent(eventInterface: "XRInputSourcesChangeEvent"): XRInputSourcesChangeEvent;
    createEvent(eventInterface: "XRReferenceSpaceEvent"): XRReferenceSpaceEvent;
    createEvent(eventInterface: "XRSessionEvent"): XRSessionEvent;
    createEvent(eventInterface: "XULCommandEvent"): XULCommandEvent;
    createEvent(eventInterface: string): Event;
    /**
     * Creates a NodeIterator object that you can use to traverse filtered lists of nodes or elements in a document.
     * @param root The root element or node to start traversing on.
     * @param whatToShow The type of nodes or elements to appear in the node list
     * @param filter A custom NodeFilter function to use. For more information, see filter. Use null for no filter.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createNodeIterator)
     */
    createNodeIterator(root: Node, whatToShow?: number, filter?: NodeFilter | null): NodeIterator;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createProcessingInstruction) */
    createProcessingInstruction(target: string, data: string): ProcessingInstruction;
    /**
     *  Returns an empty range object that has both of its boundary points positioned at the beginning of the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createRange)
     */
    createRange(): Range;
    /**
     * Creates a text string from the specified value.
     * @param data String that specifies the nodeValue property of the text node.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createTextNode)
     */
    createTextNode(data: string): Text;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createTouch)
     */
    createTouch(view?: Window | null, target?: EventTarget | null, identifier?: number, pageX?: number, pageY?: number, screenX?: number, screenY?: number, clientX?: number, clientY?: number, radiusX?: number, radiusY?: number, rotationAngle?: number, force?: number): Touch;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createTouchList)
     */
    createTouchList(touch: Touch, ...touches: Touch[]): TouchList;
    createTouchList(): TouchList;
    createTouchList(touches: Touch[]): TouchList;
    /**
     * Creates a TreeWalker object that you can use to traverse filtered lists of nodes or elements in a document.
     * @param root The root element or node to start traversing on.
     * @param whatToShow The type of nodes or elements to appear in the node list. For more information, see whatToShow.
     * @param filter A custom NodeFilter function to use.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/createTreeWalker)
     */
    createTreeWalker(root: Node, whatToShow?: number, filter?: NodeFilter | null): TreeWalker;
    createXULElement(localName: string, options?: ElementCreationOptions | string): Element;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/enableStyleSheetsForSet)
     */
    enableStyleSheetsForSet(name: string | null): void;
    /**
     * Executes a command on the current document, current selection, or the given range.
     * @param commandId String that specifies the command to execute. This command can be any of the command identifiers that can be executed in script.
     * @param showUI Display the user interface, defaults to false.
     * @param value Value to assign.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/execCommand)
     */
    execCommand(commandId: string, showUI?: boolean, value?: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitFullscreen) */
    exitFullscreen(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitPointerLock) */
    exitPointerLock(): void;
    getConnectedShadowRoots(): ShadowRoot[];
    /**
     * Returns a reference to the first object with the specified value of the ID attribute.
     * @param elementId String that specifies the ID value.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getElementById)
     */
    getElementById(elementId: string): Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getElementsByClassName) */
    getElementsByClassName(classNames: string): HTMLCollection;
    /**
     * Gets a collection of objects based on the value of the NAME or ID attribute.
     * @param elementName Gets a collection of objects based on the value of the NAME or ID attribute.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getElementsByName)
     */
    getElementsByName(elementName: string): NodeList;
    /**
     * Retrieves a collection of objects based on the specified element name.
     * @param name Specifies the name of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getElementsByTagName)
     */
    getElementsByTagName<K extends keyof HTMLElementTagNameMap>(localName: K): HTMLCollectionOf<HTMLElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof SVGElementTagNameMap>(localName: K): HTMLCollectionOf<SVGElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof MathMLElementTagNameMap>(localName: K): HTMLCollectionOf<MathMLElementTagNameMap[K]>;
    /** @deprecated */
    getElementsByTagName<K extends keyof HTMLElementDeprecatedTagNameMap>(localName: K): HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>;
    getElementsByTagName(localName: string): HTMLCollectionOf<Element>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getElementsByTagNameNS) */
    getElementsByTagNameNS(namespace: string | null, localName: string): HTMLCollection;
    getFailedCertSecurityInfo(): FailedCertSecurityInfo;
    getNetErrorInfo(): NetErrorInfo;
    /**
     * Returns an object representing the current selection of the document that is loaded into the object displaying a webpage.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getSelection)
     */
    getSelection(): Selection | null;
    getWireframe(aIncludeNodes?: boolean): Wireframe | null;
    /**
     * Gets a value indicating whether the object currently has focus.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/hasFocus)
     */
    hasFocus(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/hasStorageAccess) */
    hasStorageAccess(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/importNode) */
    importNode(node: Node, deep?: boolean): Node;
    insertAnonymousContent(aForce?: boolean): AnonymousContent;
    isActive(): boolean;
    /**
     * @deprecated This is a legacy alias of `exitFullscreen`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitFullscreen)
     */
    mozCancelFullScreen(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/mozSetImageElement) */
    mozSetImageElement(aImageElementId: string, aImageElement: Element | null): void;
    notifyUserGestureActivation(): void;
    /**
     * Opens a new window and loads a document specified by a given URL. Also, opens a new window that uses the url parameter and the name parameter to collect the output of the write method and the writeln method.
     * @param url Specifies a MIME type for the document.
     * @param name Specifies the name of the window. This name is used as the value for the TARGET attribute on a form or an anchor element.
     * @param features Contains a list of items separated by commas. Each item consists of an option and a value, separated by an equals sign (for example, "fullscreen=yes, toolbar=yes"). The following values are supported.
     * @param replace Specifies whether the existing entry for the document is replaced in the history list.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/open)
     */
    open(unused1?: string, unused2?: string): Document;
    open(url: string | URL, name: string, features: string): WindowProxy | null;
    /**
     * Returns a Boolean value that indicates whether a specified command can be successfully executed using execCommand, given the current state of the document.
     * @param commandId Specifies a command identifier.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/queryCommandEnabled)
     */
    queryCommandEnabled(commandId: string): boolean;
    /**
     * Returns a Boolean value that indicates whether the specified command is in the indeterminate state.
     * @param commandId String that specifies a command identifier.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/queryCommandIndeterm)
     */
    queryCommandIndeterm(commandId: string): boolean;
    /**
     * Returns a Boolean value that indicates the current state of the command.
     * @param commandId String that specifies a command identifier.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/queryCommandState)
     */
    queryCommandState(commandId: string): boolean;
    /**
     * Returns a Boolean value that indicates whether the current command is supported on the current range.
     * @param commandId Specifies a command identifier.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/queryCommandSupported)
     */
    queryCommandSupported(commandId: string): boolean;
    /**
     * Returns the current value of the document, range, or current selection for the given command.
     * @param commandId String that specifies a command identifier.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/queryCommandValue)
     */
    queryCommandValue(commandId: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/querySelector) */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/querySelectorAll) */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/releaseCapture) */
    releaseCapture(): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/releaseEvents)
     */
    releaseEvents(): void;
    reloadWithHttpsOnlyException(): void;
    removeAnonymousContent(aContent: AnonymousContent): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/requestStorageAccess) */
    requestStorageAccess(): Promise<void>;
    requestStorageAccessForOrigin(thirdPartyOrigin: string, requireUserInteraction?: boolean): Promise<void>;
    requestStorageAccessUnderSite(serializedSite: string): Promise<void>;
    setKeyPressEventModel(aKeyPressEventModel: number): void;
    setNotifyFetchSuccess(aShouldNotify: boolean): void;
    setNotifyFormOrPasswordRemoved(aShouldNotify: boolean): void;
    setSuppressedEventListener(aListener: EventListener | null): void;
    userInteractionForTesting(): void;
    /**
     * Writes one or more HTML expressions to a document in the specified window.
     * @param content Specifies the text and HTML tags to write.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/write)
     */
    write(...text: string[]): void;
    /**
     * Writes one or more HTML expressions, followed by a carriage return, to a document in the specified window.
     * @param content The text and HTML tags to write.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/writeln)
     */
    writeln(...text: string[]): void;
    readonly KEYPRESS_EVENT_MODEL_DEFAULT: 0;
    readonly KEYPRESS_EVENT_MODEL_SPLIT: 1;
    readonly KEYPRESS_EVENT_MODEL_CONFLATED: 2;
    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Document: {
    prototype: Document;
    new(): Document;
    readonly KEYPRESS_EVENT_MODEL_DEFAULT: 0;
    readonly KEYPRESS_EVENT_MODEL_SPLIT: 1;
    readonly KEYPRESS_EVENT_MODEL_CONFLATED: 2;
    parseHTMLUnsafe(html: string): Document;
    isInstance(obj): obj is Document;
};

/**
 * A minimal document object that has no parent. It is used as a lightweight version of Document that stores a segment of a document structure comprised of nodes just like a standard document. The key difference is that because the document fragment isn't part of the active document tree structure, changes made to the fragment don't affect the document, cause reflow, or incur any performance impact that can occur when changes are made.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentFragment)
 */
interface DocumentFragment extends Node, ParentNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentFragment/getElementById) */
    getElementById(elementId: string): Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentFragment/querySelector) */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentFragment/querySelectorAll) */
}

declare var DocumentFragment: {
    prototype: DocumentFragment;
    new(): DocumentFragment;
    isInstance(obj): obj is DocumentFragment;
};

interface DocumentL10n extends DOMLocalization {
    readonly ready: Promise<any>;
    connectRoot(aElement: Node, aTranslate?: boolean): void;
}

interface DocumentOrShadowRoot {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/activeElement) */
    readonly activeElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/adoptedStyleSheets) */
    adoptedStyleSheets: CSSStyleSheet[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fullscreenElement) */
    readonly fullscreenElement: Element | null;
    readonly mozFullScreenElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/pointerLockElement) */
    readonly pointerLockElement: Element | null;
    /**
     * Retrieves a collection of styleSheet objects representing the style sheets that correspond to each instance of a link or style object in the document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/styleSheets)
     */
    readonly styleSheets: StyleSheetList;
    /**
     * Returns the element for the specified x coordinate and the specified y coordinate.
     * @param x The x-offset
     * @param y The y-offset
     */
    elementFromPoint(x: number, y: number): Element | null;
    elementsFromPoint(x: number, y: number): Element[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/getAnimations) */
    getAnimations(): Animation[];
    nodeFromPoint(x: number, y: number): Node | null;
    nodesFromPoint(x: number, y: number): Node[];
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentTimeline) */
interface DocumentTimeline extends AnimationTimeline {
}

declare var DocumentTimeline: {
    prototype: DocumentTimeline;
    new(options?: DocumentTimelineOptions): DocumentTimeline;
    isInstance(obj): obj is DocumentTimeline;
};

/**
 * A Node containing a doctype.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentType)
 */
interface DocumentType extends Node, ChildNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentType/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentType/publicId) */
    readonly publicId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DocumentType/systemId) */
    readonly systemId: string;
}

declare var DocumentType: {
    prototype: DocumentType;
    new(): DocumentType;
    isInstance(obj): obj is DocumentType;
};

interface DominatorTree {
    readonly root: NodeId;
    getImmediateDominator(node: NodeId): NodeId | null;
    getImmediatelyDominated(node: NodeId): NodeId[] | null;
    getRetainedSize(node: NodeId): NodeSize | null;
}

declare var DominatorTree: {
    prototype: DominatorTree;
    new(): DominatorTree;
    isInstance(obj): obj is DominatorTree;
};

/**
 * A DOM event that represents a drag and drop interaction. The user initiates a drag by placing a pointer device (such as a mouse) on the touch surface and then dragging the pointer to a new location (such as another DOM element). Applications are free to interpret a drag and drop interaction in an application-specific way.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DragEvent)
 */
interface DragEvent extends MouseEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DragEvent/dataTransfer) */
    readonly dataTransfer: DataTransfer | null;
    initDragEvent(type: string, canBubble?: boolean, cancelable?: boolean, aView?: Window | null, aDetail?: number, aScreenX?: number, aScreenY?: number, aClientX?: number, aClientY?: number, aCtrlKey?: boolean, aAltKey?: boolean, aShiftKey?: boolean, aMetaKey?: boolean, aButton?: number, aRelatedTarget?: EventTarget | null, aDataTransfer?: DataTransfer | null): void;
}

declare var DragEvent: {
    prototype: DragEvent;
    new(type: string, eventInitDict?: DragEventInit): DragEvent;
    isInstance(obj): obj is DragEvent;
};

/**
 * Inherits properties from its parent, AudioNode.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode)
 */
interface DynamicsCompressorNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/attack) */
    readonly attack: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/knee) */
    readonly knee: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/ratio) */
    readonly ratio: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/reduction) */
    readonly reduction: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/release) */
    readonly release: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/DynamicsCompressorNode/threshold) */
    readonly threshold: AudioParam;
}

declare var DynamicsCompressorNode: {
    prototype: DynamicsCompressorNode;
    new(context: BaseAudioContext, options?: DynamicsCompressorOptions): DynamicsCompressorNode;
    isInstance(obj): obj is DynamicsCompressorNode;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_blend_minmax) */
interface EXT_blend_minmax {
    readonly MIN_EXT: 0x8007;
    readonly MAX_EXT: 0x8008;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_float) */
interface EXT_color_buffer_float {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_color_buffer_half_float) */
interface EXT_color_buffer_half_float {
    readonly RGBA16F_EXT: 0x881A;
    readonly RGB16F_EXT: 0x881B;
    readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: 0x8211;
    readonly UNSIGNED_NORMALIZED_EXT: 0x8C17;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query) */
interface EXT_disjoint_timer_query {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/beginQueryEXT) */
    beginQueryEXT(target: GLenum, query: WebGLQuery): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/createQueryEXT) */
    createQueryEXT(): WebGLQuery | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/deleteQueryEXT) */
    deleteQueryEXT(query: WebGLQuery | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/endQueryEXT) */
    endQueryEXT(target: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/getQueryEXT) */
    getQueryEXT(target: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/getQueryObjectEXT) */
    getQueryObjectEXT(query: WebGLQuery, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/isQueryEXT) */
    isQueryEXT(query: WebGLQuery | null): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_disjoint_timer_query/queryCounterEXT) */
    queryCounterEXT(query: WebGLQuery, target: GLenum): void;
    readonly QUERY_COUNTER_BITS_EXT: 0x8864;
    readonly CURRENT_QUERY_EXT: 0x8865;
    readonly QUERY_RESULT_EXT: 0x8866;
    readonly QUERY_RESULT_AVAILABLE_EXT: 0x8867;
    readonly TIME_ELAPSED_EXT: 0x88BF;
    readonly TIMESTAMP_EXT: 0x8E28;
    readonly GPU_DISJOINT_EXT: 0x8FBB;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_float_blend) */
interface EXT_float_blend {
}

/**
 * The EXT_frag_depth extension is part of the WebGL API and enables to set a depth value of a fragment from within the fragment shader.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_frag_depth)
 */
interface EXT_frag_depth {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_sRGB) */
interface EXT_sRGB {
    readonly SRGB_EXT: 0x8C40;
    readonly SRGB_ALPHA_EXT: 0x8C42;
    readonly SRGB8_ALPHA8_EXT: 0x8C43;
    readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT: 0x8210;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_shader_texture_lod) */
interface EXT_shader_texture_lod {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_bptc) */
interface EXT_texture_compression_bptc {
    readonly COMPRESSED_RGBA_BPTC_UNORM_EXT: 0x8E8C;
    readonly COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT: 0x8E8D;
    readonly COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT: 0x8E8E;
    readonly COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT: 0x8E8F;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_compression_rgtc) */
interface EXT_texture_compression_rgtc {
    readonly COMPRESSED_RED_RGTC1_EXT: 0x8DBB;
    readonly COMPRESSED_SIGNED_RED_RGTC1_EXT: 0x8DBC;
    readonly COMPRESSED_RED_GREEN_RGTC2_EXT: 0x8DBD;
    readonly COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: 0x8DBE;
}

/**
 * The EXT_texture_filter_anisotropic extension is part of the WebGL API and exposes two constants for anisotropic filtering (AF).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_filter_anisotropic)
 */
interface EXT_texture_filter_anisotropic {
    readonly TEXTURE_MAX_ANISOTROPY_EXT: 0x84FE;
    readonly MAX_TEXTURE_MAX_ANISOTROPY_EXT: 0x84FF;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EXT_texture_norm16) */
interface EXT_texture_norm16 {
    readonly R16_EXT: 0x822A;
    readonly RG16_EXT: 0x822C;
    readonly RGB16_EXT: 0x8054;
    readonly RGBA16_EXT: 0x805B;
    readonly R16_SNORM_EXT: 0x8F98;
    readonly RG16_SNORM_EXT: 0x8F99;
    readonly RGB16_SNORM_EXT: 0x8F9A;
    readonly RGBA16_SNORM_EXT: 0x8F9B;
}

interface ElementEventMap {
    "fullscreenchange": Event;
    "fullscreenerror": Event;
}

/**
 * Element is the most general base class from which all objects in a Document inherit. It only has methods and properties common to all kinds of elements. More specific classes inherit from Element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element)
 */
interface Element extends Node, AccessibilityRole, Animatable, AriaAttributes, ChildNode, GeometryUtils, NonDocumentTypeChildNode, ParentNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/assignedSlot) */
    readonly assignedSlot: HTMLSlotElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/attributes) */
    readonly attributes: NamedNodeMap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/classList) */
    readonly classList: DOMTokenList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/className) */
    //classNme
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/clientHeight) */
    readonly clientHeight: number;
    readonly clientHeightDouble: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/clientLeft) */
    readonly clientLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/clientTop) */
    readonly clientTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/clientWidth) */
    readonly clientWidth: number;
    readonly clientWidthDouble: number;
    readonly firstLineBoxBSize: number;
    readonly fontSizeInflation: number;
    readonly hasVisibleScrollbars: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/id) */
    id: string;
    readonly implementedPseudoElement: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/innerHTML) */
    innerHTML: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/localName) */
    readonly localName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/namespaceURI) */
    readonly namespaceURI: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/fullscreenchange_event) */
    onfullscreenchange: ((this: Element, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/fullscreenerror_event) */
    onfullscreenerror: ((this: Element, ev: Event) => any) | null;
    readonly openOrClosedAssignedSlot: HTMLSlotElement | null;
    readonly openOrClosedShadowRoot: ShadowRoot | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/outerHTML) */
    outerHTML: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/part) */
    readonly part: DOMTokenList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/prefix) */
    readonly prefix: string | null;
    readonly screen: nsIScreen | null;
    readonly screenX: number;
    readonly screenY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollHeight) */
    readonly scrollHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollLeft) */
    scrollLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollLeftMax) */
    readonly scrollLeftMax: number;
    readonly scrollLeftMin: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollTop) */
    scrollTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollTopMax) */
    readonly scrollTopMax: number;
    readonly scrollTopMin: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollWidth) */
    readonly scrollWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/shadowRoot) */
    readonly shadowRoot: ShadowRoot | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/slot) */
    slot: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/tagName) */
    readonly tagName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/attachShadow) */
    attachShadow(shadowRootInitDict: ShadowRootInit): ShadowRoot;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/checkVisibility) */
    checkVisibility(options?: CheckVisibilityOptions): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/closest) */
    closest(selector: UTF8String): Element | null;
    getAsFlexContainer(): Flex | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAttribute) */
    getAttribute(name: string): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAttributeNS) */
    getAttributeNS(namespace: string | null, localName: string): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAttributeNames) */
    getAttributeNames(): string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAttributeNode) */
    getAttributeNode(name: string): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getAttributeNodeNS) */
    getAttributeNodeNS(namespaceURI: string | null, localName: string): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getBoundingClientRect) */
    getBoundingClientRect(): DOMRect;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getClientRects) */
    getClientRects(): DOMRectList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getElementsByClassName) */
    getElementsByClassName(classNames: string): HTMLCollection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getElementsByTagName) */
    getElementsByTagName<K extends keyof HTMLElementTagNameMap>(localName: K): HTMLCollectionOf<HTMLElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof SVGElementTagNameMap>(localName: K): HTMLCollectionOf<SVGElementTagNameMap[K]>;
    getElementsByTagName<K extends keyof MathMLElementTagNameMap>(localName: K): HTMLCollectionOf<MathMLElementTagNameMap[K]>;
    /** @deprecated */
    getElementsByTagName<K extends keyof HTMLElementDeprecatedTagNameMap>(localName: K): HTMLCollectionOf<HTMLElementDeprecatedTagNameMap[K]>;
    getElementsByTagName(localName: string): HTMLCollectionOf<Element>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/getElementsByTagNameNS) */
    getElementsByTagNameNS(namespace: string | null, localName: string): HTMLCollection;
    getElementsWithGrid(): Element[];
    getGridFragments(): Grid[];
    getTransformToAncestor(ancestor: Element): DOMMatrixReadOnly;
    getTransformToParent(): DOMMatrixReadOnly;
    getTransformToViewport(): DOMMatrixReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/hasAttribute) */
    hasAttribute(name: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/hasAttributeNS) */
    hasAttributeNS(namespace: string | null, localName: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/hasAttributes) */
    hasAttributes(): boolean;
    hasGridFragments(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/hasPointerCapture) */
    hasPointerCapture(pointerId: number): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentElement) */
    insertAdjacentElement(where: string, element: Element): Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentHTML) */
    insertAdjacentHTML(position: string, text: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/insertAdjacentText) */
    insertAdjacentText(where: string, data: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/matches) */
    matches(selector: UTF8String): boolean;
    /**
     * @deprecated This is a legacy alias of `matches`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/matches)
     */
    mozMatchesSelector(selector: UTF8String): boolean;
    /**
     * @deprecated This is a legacy alias of `requestFullscreen`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/requestFullscreen)
     */
    mozRequestFullScreen(): Promise<void>;
    mozScrollSnap(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/querySelector) */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/querySelectorAll) */
    releaseCapture(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture) */
    releasePointerCapture(pointerId: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/removeAttribute) */
    removeAttribute(name: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/removeAttributeNS) */
    removeAttributeNS(namespace: string | null, localName: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/removeAttributeNode) */
    removeAttributeNode(oldAttr: Attr): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/requestFullscreen) */
    requestFullscreen(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/requestPointerLock) */
    requestPointerLock(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scroll) */
    scroll(x: number, y: number): void;
    scroll(options?: ScrollToOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollBy) */
    scrollBy(x: number, y: number): void;
    scrollBy(options?: ScrollToOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollIntoView) */
    scrollIntoView(arg?: boolean | ScrollIntoViewOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/scrollTo) */
    scrollTo(x: number, y: number): void;
    scrollTo(options?: ScrollToOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setAttribute) */
    setAttribute(name: string, value: string): void;
    setAttributeDevtools(name: string, value: string): void;
    setAttributeDevtoolsNS(namespace: string | null, name: string, value: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setAttributeNS) */
    setAttributeNS(namespace: string | null, name: string, value: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setAttributeNode) */
    setAttributeNode(newAttr: Attr): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setAttributeNodeNS) */
    setAttributeNodeNS(newAttr: Attr): Attr | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setCapture)
     */
    setCapture(retargetToElement?: boolean): void;
    setCaptureAlways(retargetToElement?: boolean): void;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setHTML)
     */
    setHTML(aInnerHTML: string, options?: SetHTMLOptions): void;
    setHTMLUnsafe(html: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/setPointerCapture) */
    setPointerCapture(pointerId: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/toggleAttribute) */
    toggleAttribute(name: string, force?: boolean): boolean;
    /**
     * @deprecated This is a legacy alias of `matches`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/matches)
     */
    webkitMatchesSelector(selector: UTF8String): boolean;
    addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Element: {
    prototype: Element;
    new(): Element;
    isInstance(obj): obj is Element;
};

interface ElementCSSInlineStyle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/style) */
    readonly style: CSSStyleDeclaration;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals) */
interface ElementInternals extends AccessibilityRole, AriaAttributes {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/form) */
    readonly form: HTMLFormElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/labels) */
    readonly labels: NodeList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/shadowRoot) */
    readonly shadowRoot: ShadowRoot | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/states) */
    readonly states: CustomStateSet;
    readonly validationAnchor: HTMLElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/validationMessage) */
    readonly validationMessage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/validity) */
    readonly validity: ValidityState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/willValidate) */
    readonly willValidate: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/checkValidity) */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/reportValidity) */
    reportValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/setFormValue) */
    setFormValue(value: File | string | FormData | null, state?: File | string | FormData | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ElementInternals/setValidity) */
    setValidity(flags?: ValidityStateFlags, message?: string, anchor?: HTMLElement): void;
}

declare var ElementInternals: {
    prototype: ElementInternals;
    new(): ElementInternals;
    isInstance(obj): obj is ElementInternals;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk) */
interface EncodedVideoChunk {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/byteLength) */
    readonly byteLength: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/duration) */
    readonly duration: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/timestamp) */
    readonly timestamp: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/type) */
    readonly type: EncodedVideoChunkType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EncodedVideoChunk/copyTo) */
    copyTo(destination: ArrayBufferView | ArrayBuffer): void;
}

declare var EncodedVideoChunk: {
    prototype: EncodedVideoChunk;
    new(init: EncodedVideoChunkInit): EncodedVideoChunk;
    isInstance(obj): obj is EncodedVideoChunk;
};

/**
 * Events providing information related to errors in scripts or in files.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent)
 */
interface ErrorEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent/colno) */
    readonly colno: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent/error) */
    "error": ErrorEvent;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent/filename) */
    readonly filename: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent/lineno) */
    readonly lineno: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ErrorEvent/message) */
    readonly message: string;
}

declare var ErrorEvent: {
    prototype: ErrorEvent;
    new(type: string, eventInitDict?: ErrorEventInit): ErrorEvent;
    isInstance(obj): obj is ErrorEvent;
};

/**
 * An event which takes place in the DOM.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event)
 */
interface Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/bubbles) */
    readonly bubbles: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/cancelBubble)
     */
    cancelBubble: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/cancelable) */
    readonly cancelable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/composed) */
    readonly composed: boolean;
    readonly composedTarget: EventTarget | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/currentTarget) */
    readonly currentTarget: EventTarget | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/defaultPrevented) */
    readonly defaultPrevented: boolean;
    readonly defaultPreventedByChrome: boolean;
    readonly defaultPreventedByContent: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/eventPhase) */
    readonly eventPhase: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/explicitOriginalTarget) */
    readonly explicitOriginalTarget: EventTarget | null;
    readonly isReplyEventFromRemoteContent: boolean;
    readonly isSynthesized: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/isTrusted) */
    readonly isTrusted: boolean;
    readonly isWaitingReplyFromRemoteContent: boolean;
    readonly multipleActionsPrevented: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/originalTarget) */
    readonly originalTarget: EventTarget | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/returnValue)
     */
    returnValue: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/target) */
    readonly target: EventTarget | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/timeStamp) */
    readonly timeStamp: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/type) */
    readonly type: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/composedPath) */
    composedPath(): EventTarget[];
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/initEvent)
     */
    initEvent(type: string, bubbles?: boolean, cancelable?: boolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/preventDefault) */
    preventDefault(): void;
    preventMultipleActions(): void;
    requestReplyFromRemoteContent(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/stopImmediatePropagation) */
    stopImmediatePropagation(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Event/stopPropagation) */
    stopPropagation(): void;
    readonly NONE: 0;
    readonly CAPTURING_PHASE: 1;
    readonly AT_TARGET: 2;
    readonly BUBBLING_PHASE: 3;
    readonly ALT_MASK: 0x00000001;
    readonly CONTROL_MASK: 0x00000002;
    readonly SHIFT_MASK: 0x00000004;
    readonly META_MASK: 0x00000008;
}

declare var Event: {
    prototype: Event;
    new(type: string, eventInitDict?: EventInit): Event;
    readonly NONE: 0;
    readonly CAPTURING_PHASE: 1;
    readonly AT_TARGET: 2;
    readonly BUBBLING_PHASE: 3;
    readonly ALT_MASK: 0x00000001;
    readonly CONTROL_MASK: 0x00000002;
    readonly SHIFT_MASK: 0x00000004;
    readonly META_MASK: 0x00000008;
    isInstance(obj): obj is Event;
};

interface EventCallbackDebuggerNotification extends CallbackDebuggerNotification {
    readonly event: Event;
    readonly targetType: EventCallbackDebuggerNotificationType;
}

declare var EventCallbackDebuggerNotification: {
    prototype: EventCallbackDebuggerNotification;
    new(): EventCallbackDebuggerNotification;
    isInstance(obj): obj is EventCallbackDebuggerNotification;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventCounts) */
interface EventCounts {
    forEach(callbackfn: (value: number, key: string, parent: EventCounts) => void, thisArg?: any): void;
}

declare var EventCounts: {
    prototype: EventCounts;
    new(): EventCounts;
    isInstance(obj): obj is EventCounts;
};

interface EventSourceEventMap {
    "error": ErrorEvent;
    "message": Event;
    "open": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource) */
interface EventSource extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/message_event) */
    onmessage: ((this: EventSource, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/open_event) */
    onopen: ((this: EventSource, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/readyState) */
    readonly readyState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/withCredentials) */
    readonly withCredentials: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventSource/close) */
    close(): void;
    readonly CONNECTING: 0;
    readonly OPEN: 1;
    readonly CLOSED: 2;
    addEventListener<K extends keyof EventSourceEventMap>(type: K, listener: (this: EventSource, ev: EventSourceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: (this: EventSource, event: MessageEvent) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof EventSourceEventMap>(type: K, listener: (this: EventSource, ev: EventSourceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: (this: EventSource, event: MessageEvent) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var EventSource: {
    prototype: EventSource;
    new(url: string | URL, eventSourceInitDict?: EventSourceInit): EventSource;
    readonly CONNECTING: 0;
    readonly OPEN: 1;
    readonly CLOSED: 2;
    isInstance(obj): obj is EventSource;
};

/**
 * EventTarget is a DOM interface implemented by objects that can receive events and may have listeners for them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventTarget)
 */
interface EventTarget {
    readonly ownerGlobal: WindowProxy | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventTarget/addEventListener) */
    addEventListener(type: string, listener: EventListener | null, options?: AddEventListenerOptions | boolean, wantsUntrusted?: boolean | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventTarget/dispatchEvent) */
    dispatchEvent(event: Event): boolean;
    getEventHandler(type: string): EventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/EventTarget/removeEventListener) */
    removeEventListener(type: string, listener: EventListener | null, options?: EventListenerOptions | boolean): void;
    setEventHandler(type: string, handler: EventHandler): void;
}

declare var EventTarget: {
    prototype: EventTarget;
    new(): EventTarget;
    isInstance(obj): obj is EventTarget;
};

interface Exception extends ExceptionMembers {
    readonly message: string;
    readonly name: string;
    toString(): string;
}

interface ExceptionMembers {
    readonly columnNumber: number;
    readonly data: nsISupports | null;
    readonly filename: string;
    readonly lineNumber: number;
    readonly location: StackFrame | null;
    readonly result: number;
    stack?: string;
}

/**
 * Extends the lifetime of the install and activate events dispatched on the global scope as part of the service worker lifecycle. This ensures that any functional events (like FetchEvent) are not dispatched until it upgrades database schemas and deletes the outdated cache entries.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableEvent)
 */
interface ExtendableEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableEvent/waitUntil) */
    waitUntil(p: any): void;
}

declare var ExtendableEvent: {
    prototype: ExtendableEvent;
    new(type: string, eventInitDict?: ExtendableEventInit): ExtendableEvent;
    isInstance(obj): obj is ExtendableEvent;
};

/**
 * This ServiceWorker API interface represents the event object of a message event fired on a service worker (when a channel message is received on the ServiceWorkerGlobalScope from another context) — extends the lifetime of such events.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent)
 */
interface ExtendableMessageEvent extends ExtendableEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/data) */
    readonly data: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/lastEventId) */
    readonly lastEventId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/ports) */
    readonly ports: MessagePort[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ExtendableMessageEvent/source) */
    readonly source: Client | ServiceWorker | MessagePort | null;
}

declare var ExtendableMessageEvent: {
    prototype: ExtendableMessageEvent;
    new(type: string, eventInitDict?: ExtendableMessageEventInit): ExtendableMessageEvent;
    isInstance(obj): obj is ExtendableMessageEvent;
};

interface ExtensionAlarms {
    readonly onAlarm: ExtensionEventManager;
    clear(name: string, callback?: Function): any;
    clear(callback?: Function): any;
    clearAll(callback?: Function): any;
    create(name: string, alarmInfo: any): void;
    create(alarmInfo: any): void;
    get(name: string, callback?: Function): any;
    get(callback?: Function): any;
    getAll(callback?: Function): any;
}

interface ExtensionBrowser {
    readonly alarms: ExtensionAlarms;
    readonly browserSettings: ExtensionBrowserSettings;
    readonly dns: ExtensionDns;
    readonly mockExtensionAPI: ExtensionMockAPI;
    readonly proxy: ExtensionProxy;
    readonly runtime: ExtensionRuntime;
    readonly scripting: ExtensionScripting;
    readonly test: ExtensionTest;
}

interface ExtensionBrowserSettings {
    readonly allowPopupsForUserEvents: ExtensionSetting;
    readonly cacheEnabled: ExtensionSetting;
    readonly closeTabsByDoubleClick: ExtensionSetting;
    readonly colorManagement: ExtensionBrowserSettingsColorManagement;
    readonly contextMenuShowEvent: ExtensionSetting;
    readonly ftpProtocolEnabled: ExtensionSetting;
    readonly homepageOverride: ExtensionSetting;
    readonly imageAnimationBehavior: ExtensionSetting;
    readonly newTabPageOverride: ExtensionSetting;
    readonly newTabPosition: ExtensionSetting;
    readonly openBookmarksInNewTabs: ExtensionSetting;
    readonly openSearchResultsInNewTabs: ExtensionSetting;
    readonly openUrlbarResultsInNewTabs: ExtensionSetting;
    readonly overrideContentColorScheme: ExtensionSetting;
    readonly overrideDocumentColors: ExtensionSetting;
    readonly useDocumentFonts: ExtensionSetting;
    readonly webNotificationsDisabled: ExtensionSetting;
    readonly zoomFullPage: ExtensionSetting;
    readonly zoomSiteSpecific: ExtensionSetting;
}

interface ExtensionBrowserSettingsColorManagement {
    readonly mode: ExtensionSetting;
    readonly useNativeSRGB: ExtensionSetting;
    readonly useWebRenderCompositor: ExtensionSetting;
}

interface ExtensionDns {
    resolve(...args: any[]): any;
}

interface ExtensionEventManager {
    addListener(callback: Function, listenerOptions?: any): void;
    hasListener(callback: Function): boolean;
    hasListeners(): boolean;
    removeListener(callback: Function): void;
}

interface ExtensionGlobalsMixin {
    readonly browser: ExtensionBrowser;
}

interface ExtensionMockAPI {
    readonly onTestEvent: ExtensionEventManager;
    readonly propertyAsErrorObject: any;
    readonly propertyAsString: string;
    methodAmbiguousArgsAsync(...args: any[]): any;
    methodAsync(arg0: any, cb?: Function): any;
    methodNoReturn(...args: any[]): void;
    methodReturnsPort(testName: string): ExtensionPort;
    methodSyncWithReturn(...args: any[]): any;
}

interface ExtensionPort {
    "error": ErrorEvent;
    readonly name: string;
    readonly onDisconnect: ExtensionEventManager;
    readonly onMessage: ExtensionEventManager;
    readonly sender: any;
    disconnect(): void;
    postMessage(message: any): void;
}

interface ExtensionProxy {
    readonly onError: ExtensionEventManager;
    readonly onRequest: ExtensionEventManager;
    readonly settings: ExtensionSetting;
}

interface ExtensionRuntime {
    readonly id: string;
    readonly lastError: any;
    readonly onConnect: ExtensionEventManager;
    readonly onConnectExternal: ExtensionEventManager;
    readonly onInstalled: ExtensionEventManager;
    readonly onMessage: ExtensionEventManager;
    readonly onMessageExternal: ExtensionEventManager;
    readonly onStartup: ExtensionEventManager;
    readonly onUpdateAvailable: ExtensionEventManager;
    connect(extensionId: string, connectInfo: any): ExtensionPort;
    connect(connectInfo: any): ExtensionPort;
    connect(): ExtensionPort;
    connectNative(application: string): ExtensionPort;
    getBrowserInfo(callback?: Function): any;
    getManifest(): any;
    getPlatformInfo(callback?: Function): any;
    getURL(path: string): string;
    openOptionsPage(callback?: Function): any;
    reload(): void;
    sendMessage(...args: any[]): any;
    sendNativeMessage(application: string, message: any, responseCallback?: Function): any;
    setUninstallURL(url: string, callback?: Function): any;
    setUninstallURL(callback?: Function): any;
}

interface ExtensionScripting {
    executeScript(injection: any, callback?: Function): any;
    getRegisteredContentScripts(...args: any[]): any;
    insertCSS(injection: any, callback?: Function): any;
    registerContentScripts(scripts: any, callback?: Function): any;
    removeCSS(injection: any, callback?: Function): any;
    unregisterContentScripts(...args: any[]): any;
    updateContentScripts(scripts: any, callback?: Function): any;
}

interface ExtensionSetting {
    readonly onChange: ExtensionEventManager;
    clear(details: any, callback?: Function): any;
    get(details: any, callback?: Function): any;
    set(details: any, callback?: Function): any;
}

interface ExtensionTest {
    readonly onMessage: ExtensionEventManager;
    assertDeepEq(...args: any[]): void;
    assertEq(...args: any[]): void;
    assertFalse(...args: any[]): void;
    assertRejects(promise: any, expectedError: any, message: string, callback?: Function): any;
    assertRejects(promise: any, expectedError: any, callback?: Function): any;
    assertThrows(func: Function, expectedError: any, message: string): void;
    assertThrows(func: Function, expectedError: any): void;
    assertTrue(...args: any[]): void;
    fail(message: any): void;
    fail(): void;
    log(message: string): void;
    notifyFail(message: string): void;
    notifyPass(message: string): void;
    notifyPass(): void;
    sendMessage(...args: any[]): void;
    succeed(message: any): void;
    succeed(): void;
    withHandlingUserInput(callback: Function): void;
}

/**
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/External)
 */
interface External {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/External/AddSearchProvider)
     */
    AddSearchProvider(): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/External/IsSearchProviderInstalled)
     */
    IsSearchProviderInstalled(): void;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FeaturePolicy) */
interface FeaturePolicy {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FeaturePolicy/allowedFeatures) */
    allowedFeatures(): string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FeaturePolicy/allowsFeature) */
    allowsFeature(feature: string, origin?: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FeaturePolicy/features) */
    features(): string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FeaturePolicy/getAllowlistForFeature) */
    getAllowlistForFeature(feature: string): string[];
}

interface FeaturePolicyViolationReportBody extends ReportBody {
    readonly columnNumber: number | null;
    readonly disposition: string;
    readonly featureId: string;
    readonly lineNumber: number | null;
    readonly sourceFile: string | null;
}

declare var FeaturePolicyViolationReportBody: {
    prototype: FeaturePolicyViolationReportBody;
    new(): FeaturePolicyViolationReportBody;
    isInstance(obj): obj is FeaturePolicyViolationReportBody;
};

/**
 * This is the event type for fetch events dispatched on the service worker global scope. It contains information about the fetch, including the request and how the receiver will treat the response. It provides the event.respondWith() method, which allows us to provide a response to this fetch.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent)
 */
interface FetchEvent extends ExtendableEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/clientId) */
    readonly clientId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/handled) */
    readonly handled: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/preloadResponse) */
    readonly preloadResponse: Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/request) */
    readonly request: Request;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/resultingClientId) */
    readonly resultingClientId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FetchEvent/respondWith) */
    respondWith(r: Response | PromiseLike<Response>): void;
}

declare var FetchEvent: {
    prototype: FetchEvent;
    new(type: string, eventInitDict: FetchEventInit): FetchEvent;
    isInstance(obj): obj is FetchEvent;
};

interface FetchObserverEventMap {
    "requestprogress": Event;
    "responseprogress": Event;
    "statechange": Event;
}

interface FetchObserver extends EventTarget {
    onrequestprogress: ((this: FetchObserver, ev: Event) => any) | null;
    onresponseprogress: ((this: FetchObserver, ev: Event) => any) | null;
    onstatechange: ((this: FetchObserver, ev: Event) => any) | null;
    readonly state: FetchState;
    addEventListener<K extends keyof FetchObserverEventMap>(type: K, listener: (this: FetchObserver, ev: FetchObserverEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof FetchObserverEventMap>(type: K, listener: (this: FetchObserver, ev: FetchObserverEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var FetchObserver: {
    prototype: FetchObserver;
    new(): FetchObserver;
    isInstance(obj): obj is FetchObserver;
};

/**
 * Provides information about files and allows JavaScript in a web page to access their content.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/File)
 */
interface File extends Blob {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/File/lastModified) */
    readonly lastModified: number;
    readonly mozFullPath: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/File/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/File/webkitRelativePath) */
    readonly webkitRelativePath: string;
}

declare var File: {
    prototype: File;
    new(fileBits: BlobPart[], fileName: string, options?: FilePropertyBag): File;
    createFromFileName(fileName: string, options?: ChromeFilePropertyBag): Promise<File>;
    createFromNsIFile(file: nsIFile, options?: ChromeFilePropertyBag): Promise<File>;
    isInstance(obj): obj is File;
};

/**
 * An object of this type is returned by the files property of the HTML <input> element; this lets you access the list of files selected with the <input type="file"> element. It's also used for a list of files dropped into web content when using the drag and drop API; see the DataTransfer object for details on this usage.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileList)
 */
interface FileList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileList/item) */
    item(index: number): File | null;
    [index: number]: File;
}

declare var FileList: {
    prototype: FileList;
    new(): FileList;
    isInstance(obj): obj is FileList;
};

interface FileReaderEventMap {
    "abort": Event;
    "error": ErrorEvent;
    "load": Event;
    "loadend": Event;
    "loadstart": Event;
    "progress": Event;
}

/**
 * Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader)
 */
interface FileReader extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/error) */
    "error": ErrorEvent;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/abort_event) */
    onabort: ((this: FileReader, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/load_event) */
    onload: ((this: FileReader, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/loadend_event) */
    onloadend: ((this: FileReader, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/loadstart_event) */
    onloadstart: ((this: FileReader, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/progress_event) */
    onprogress: ((this: FileReader, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/readyState) */
    readonly readyState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/result) */
    readonly result: string | ArrayBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/abort) */
    abort(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/readAsArrayBuffer) */
    readAsArrayBuffer(blob: Blob): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/readAsBinaryString)
     */
    readAsBinaryString(filedata: Blob): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/readAsDataURL) */
    readAsDataURL(blob: Blob): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReader/readAsText) */
    readAsText(blob: Blob, label?: string): void;
    readonly EMPTY: 0;
    readonly LOADING: 1;
    readonly DONE: 2;
    addEventListener<K extends keyof FileReaderEventMap>(type: K, listener: (this: FileReader, ev: FileReaderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof FileReaderEventMap>(type: K, listener: (this: FileReader, ev: FileReaderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var FileReader: {
    prototype: FileReader;
    new(): FileReader;
    readonly EMPTY: 0;
    readonly LOADING: 1;
    readonly DONE: 2;
    isInstance(obj): obj is FileReader;
};

/**
 * Allows to read File or Blob objects in a synchronous way.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReaderSync)
 */
interface FileReaderSync {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReaderSync/readAsArrayBuffer) */
    readAsArrayBuffer(blob: Blob): ArrayBuffer;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReaderSync/readAsBinaryString)
     */
    readAsBinaryString(blob: Blob): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReaderSync/readAsDataURL) */
    readAsDataURL(blob: Blob): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileReaderSync/readAsText) */
    readAsText(blob: Blob, encoding?: string): string;
}

declare var FileReaderSync: {
    prototype: FileReaderSync;
    new(): FileReaderSync;
    isInstance(obj): obj is FileReaderSync;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystem) */
interface FileSystem {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystem/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystem/root) */
    readonly root: FileSystemDirectoryEntry;
}

declare var FileSystem: {
    prototype: FileSystem;
    new(): FileSystem;
    isInstance(obj): obj is FileSystem;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryEntry) */
interface FileSystemDirectoryEntry extends FileSystemEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryEntry/createReader) */
    createReader(): FileSystemDirectoryReader;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryEntry/getDirectory) */
    getDirectory(path?: string | null, options?: FileSystemFlags, successCallback?: FileSystemEntryCallback, errorCallback?: ErrorCallback): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryEntry/getFile) */
    getFile(path?: string | null, options?: FileSystemFlags, successCallback?: FileSystemEntryCallback, errorCallback?: ErrorCallback): void;
}

declare var FileSystemDirectoryEntry: {
    prototype: FileSystemDirectoryEntry;
    new(): FileSystemDirectoryEntry;
    isInstance(obj): obj is FileSystemDirectoryEntry;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryHandle)
 */
interface FileSystemDirectoryHandle extends FileSystemHandle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryHandle/getDirectoryHandle) */
    getDirectoryHandle(name: string, options?: FileSystemGetDirectoryOptions): Promise<FileSystemDirectoryHandle>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryHandle/getFileHandle) */
    getFileHandle(name: string, options?: FileSystemGetFileOptions): Promise<FileSystemFileHandle>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryHandle/removeEntry) */
    removeEntry(name: string, options?: FileSystemRemoveOptions): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryHandle/resolve) */
    resolve(possibleDescendant: FileSystemHandle): Promise<string[] | null>;
}

declare var FileSystemDirectoryHandle: {
    prototype: FileSystemDirectoryHandle;
    new(): FileSystemDirectoryHandle;
    isInstance(obj): obj is FileSystemDirectoryHandle;
};

/** Available only in secure contexts. */
interface FileSystemDirectoryIterator {
    next(): Promise<any>;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryReader) */
interface FileSystemDirectoryReader {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemDirectoryReader/readEntries) */
    readEntries(successCallback: FileSystemEntriesCallback, errorCallback?: ErrorCallback): void;
}

declare var FileSystemDirectoryReader: {
    prototype: FileSystemDirectoryReader;
    new(): FileSystemDirectoryReader;
    isInstance(obj): obj is FileSystemDirectoryReader;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry) */
interface FileSystemEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/filesystem) */
    readonly filesystem: FileSystem;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/fullPath) */
    readonly fullPath: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/isDirectory) */
    readonly isDirectory: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/isFile) */
    readonly isFile: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemEntry/getParent) */
    getParent(successCallback?: FileSystemEntryCallback, errorCallback?: ErrorCallback): void;
}

declare var FileSystemEntry: {
    prototype: FileSystemEntry;
    new(): FileSystemEntry;
    isInstance(obj): obj is FileSystemEntry;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileEntry) */
interface FileSystemFileEntry extends FileSystemEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileEntry/file) */
    file(successCallback: FileCallback, errorCallback?: ErrorCallback): void;
}

declare var FileSystemFileEntry: {
    prototype: FileSystemFileEntry;
    new(): FileSystemFileEntry;
    isInstance(obj): obj is FileSystemFileEntry;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileHandle)
 */
interface FileSystemFileHandle extends FileSystemHandle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileHandle/createSyncAccessHandle) */
    createSyncAccessHandle(): Promise<FileSystemSyncAccessHandle>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileHandle/createWritable) */
    createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemFileHandle/getFile) */
    getFile(): Promise<File>;
}

declare var FileSystemFileHandle: {
    prototype: FileSystemFileHandle;
    new(): FileSystemFileHandle;
    isInstance(obj): obj is FileSystemFileHandle;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemHandle)
 */
interface FileSystemHandle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemHandle/kind) */
    readonly kind: FileSystemHandleKind;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemHandle/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemHandle/isSameEntry) */
    isSameEntry(other: FileSystemHandle): Promise<boolean>;
    move(name: string): Promise<void>;
    move(parent: FileSystemDirectoryHandle): Promise<void>;
    move(parent: FileSystemDirectoryHandle, name: string): Promise<void>;
}

declare var FileSystemHandle: {
    prototype: FileSystemHandle;
    new(): FileSystemHandle;
    isInstance(obj): obj is FileSystemHandle;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle)
 */
interface FileSystemSyncAccessHandle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/flush) */
    flush(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/getSize) */
    getSize(): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/read) */
    read(buffer: ArrayBufferView | ArrayBuffer, options?: FileSystemReadWriteOptions): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/truncate) */
    truncate(size: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemSyncAccessHandle/write) */
    write(buffer: ArrayBufferView | ArrayBuffer, options?: FileSystemReadWriteOptions): number;
}

declare var FileSystemSyncAccessHandle: {
    prototype: FileSystemSyncAccessHandle;
    new(): FileSystemSyncAccessHandle;
    isInstance(obj): obj is FileSystemSyncAccessHandle;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream)
 */
interface FileSystemWritableFileStream extends WritableStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/seek) */
    seek(position: number): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/truncate) */
    truncate(size: number): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FileSystemWritableFileStream/write) */
    write(data: FileSystemWriteChunkType): Promise<void>;
}

declare var FileSystemWritableFileStream: {
    prototype: FileSystemWritableFileStream;
    new(): FileSystemWritableFileStream;
    isInstance(obj): obj is FileSystemWritableFileStream;
};

interface Flex {
    readonly crossAxisDirection: FlexPhysicalDirection;
    readonly mainAxisDirection: FlexPhysicalDirection;
    getLines(): FlexLineValues[];
}

declare var Flex: {
    prototype: Flex;
    new(): Flex;
    isInstance(obj): obj is Flex;
};

interface FlexItemValues {
    readonly clampState: FlexItemClampState;
    readonly crossMaxSize: number;
    readonly crossMinSize: number;
    readonly frameRect: DOMRectReadOnly;
    readonly mainBaseSize: number;
    readonly mainDeltaSize: number;
    readonly mainMaxSize: number;
    readonly mainMinSize: number;
    readonly node: Node | null;
}

declare var FlexItemValues: {
    prototype: FlexItemValues;
    new(): FlexItemValues;
    isInstance(obj): obj is FlexItemValues;
};

interface FlexLineValues {
    readonly crossSize: number;
    readonly crossStart: number;
    readonly firstBaselineOffset: number;
    readonly growthState: FlexLineGrowthState;
    readonly lastBaselineOffset: number;
    getItems(): FlexItemValues[];
}

declare var FlexLineValues: {
    prototype: FlexLineValues;
    new(): FlexLineValues;
    isInstance(obj): obj is FlexLineValues;
};

interface FluentBundle {
    readonly locales: UTF8String[];
    addResource(aResource: FluentResource, aOptions?: FluentBundleAddResourceOptions): void;
    formatPattern(pattern: FluentPattern, aArgs?: L10nArgs | null, aErrors?: any): UTF8String;
    getMessage(id: UTF8String): FluentMessage | null;
    hasMessage(id: UTF8String): boolean;
}

declare var FluentBundle: {
    prototype: FluentBundle;
    new(aLocales: UTF8String | UTF8String[], aOptions?: FluentBundleOptions): FluentBundle;
    isInstance(obj): obj is FluentBundle;
};

interface FluentBundleAsyncIterator {
    next(): Promise<FluentBundleIteratorResult>;
    values(): FluentBundleAsyncIterator;
}

interface FluentBundleIterator {
    next(): FluentBundleIteratorResult;
    values(): FluentBundleIterator;
}

interface FluentPattern {
}

declare var FluentPattern: {
    prototype: FluentPattern;
    new(): FluentPattern;
    isInstance(obj): obj is FluentPattern;
};

interface FluentResource {
    textElements(): FluentTextElementItem[];
}

declare var FluentResource: {
    prototype: FluentResource;
    new(source: UTF8String): FluentResource;
    isInstance(obj): obj is FluentResource;
};

/**
 * Focus-related events like focus, blur, focusin, or focusout.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FocusEvent)
 */
interface FocusEvent extends UIEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FocusEvent/relatedTarget) */
    readonly relatedTarget: EventTarget | null;
}

declare var FocusEvent: {
    prototype: FocusEvent;
    new(typeArg: string, focusEventInitDict?: FocusEventInit): FocusEvent;
    isInstance(obj): obj is FocusEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace) */
interface FontFace {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/ascentOverride) */
    ascentOverride: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/descentOverride) */
    descentOverride: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/display) */
    display: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/family) */
    family: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/featureSettings) */
    featureSettings: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/lineGapOverride) */
    lineGapOverride: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/loaded) */
    readonly loaded: Promise<FontFace>;
    sizeAdjust: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/status) */
    readonly status: FontFaceLoadStatus;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/stretch) */
    stretch: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/style) */
    style: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/unicodeRange) */
    unicodeRange: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/variant) */
    variant: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/variationSettings) */
    variationSettings: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/weight) */
    weight: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFace/load) */
    load(): Promise<FontFace>;
}

declare var FontFace: {
    prototype: FontFace;
    new(family: UTF8String, source: UTF8String | BinaryData, descriptors?: FontFaceDescriptors): FontFace;
    isInstance(obj): obj is FontFace;
};

interface FontFaceSetEventMap {
    "loading": Event;
    "loadingdone": Event;
    "loadingerror": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet) */
interface FontFaceSet extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/loading_event) */
    onloading: ((this: FontFaceSet, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/loadingdone_event) */
    onloadingdone: ((this: FontFaceSet, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/loadingerror_event) */
    onloadingerror: ((this: FontFaceSet, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/ready) */
    readonly ready: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/size) */
    readonly size: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/status) */
    readonly status: FontFaceSetLoadStatus;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/add) */
    add(font: FontFace): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/check) */
    check(font: UTF8String, text?: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/clear) */
    clear(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/delete) */
    delete(font: FontFace): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/entries) */
    entries(): FontFaceSetIterator;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/forEach) */
    forEach(cb: FontFaceSetForEachCallback, thisArg?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/has) */
    has(font: FontFace): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/load) */
    load(font: UTF8String, text?: string): Promise<FontFace[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSet/values) */
    values(): FontFaceSetIterator;
    addEventListener<K extends keyof FontFaceSetEventMap>(type: K, listener: (this: FontFaceSet, ev: FontFaceSetEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof FontFaceSetEventMap>(type: K, listener: (this: FontFaceSet, ev: FontFaceSetEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var FontFaceSet: {
    prototype: FontFaceSet;
    new(): FontFaceSet;
    isInstance(obj): obj is FontFaceSet;
};

interface FontFaceSetIterator {
    next(): FontFaceSetIteratorResult;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSetLoadEvent) */
interface FontFaceSetLoadEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FontFaceSetLoadEvent/fontfaces) */
    readonly fontfaces: FontFace[];
}

declare var FontFaceSetLoadEvent: {
    prototype: FontFaceSetLoadEvent;
    new(type: string, eventInitDict?: FontFaceSetLoadEventInit): FontFaceSetLoadEvent;
    isInstance(obj): obj is FontFaceSetLoadEvent;
};

interface FontFaceSource {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/fonts) */
    readonly fonts: FontFaceSet;
}

/**
 * Provides a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest.send() method. It uses the same format a form would use if the encoding type were set to "multipart/form-data".
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData)
 */
interface FormData {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/append) */
    append(name: string, value: Blob, filename?: string): void;
    append(name: string, value: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/delete) */
    delete(name: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/get) */
    get(name: string): FormDataEntryValue | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/getAll) */
    getAll(name: string): FormDataEntryValue[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/has) */
    has(name: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormData/set) */
    set(name: string, value: Blob, filename?: string): void;
    set(name: string, value: string): void;
    forEach(callbackfn: (value: FormDataEntryValue, key: string, parent: FormData) => void, thisArg?: any): void;
}

declare var FormData: {
    prototype: FormData;
    new(form?: HTMLFormElement, submitter?: HTMLElement | null): FormData;
    isInstance(obj): obj is FormData;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormDataEvent) */
interface FormDataEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/FormDataEvent/formData) */
    readonly formData: FormData;
}

declare var FormDataEvent: {
    prototype: FormDataEvent;
    new(type: string, eventInitDict?: FormDataEventInit): FormDataEvent;
    isInstance(obj): obj is FormDataEvent;
};

interface FrameCrashedEvent extends Event {
    readonly browsingContextId: number;
    readonly childID: number;
    readonly isTopFrame: boolean;
}

declare var FrameCrashedEvent: {
    prototype: FrameCrashedEvent;
    new(type: string, eventInitDict?: FrameCrashedEventInit): FrameCrashedEvent;
    isInstance(obj): obj is FrameCrashedEvent;
};

interface FrameLoader extends WebBrowserPersistable {
    readonly browsingContext: BrowsingContext | null;
    readonly childID: number;
    readonly depthTooGreat: boolean;
    readonly docShell: nsIDocShell | null;
    readonly isDead: boolean;
    readonly isRemoteFrame: boolean;
    readonly lazyHeight: number;
    readonly lazyWidth: number;
    readonly loadContext: LoadContext | null;
    readonly messageManager: MessageSender | null;
    readonly ownerElement: Element | null;
    readonly ownerIsMozBrowserFrame: boolean;
    readonly remoteTab: RemoteTab | null;
    exitPrintPreview(): void;
    printPreview(aPrintSettings: nsIPrintSettings, aSourceBrowsingContext: BrowsingContext | null): Promise<number>;
    requestEpochUpdate(aEpoch: number): void;
    requestSHistoryUpdate(): void;
    requestTabStateFlush(): Promise<void>;
    requestUpdatePosition(): void;
}

declare var FrameLoader: {
    prototype: FrameLoader;
    new(): FrameLoader;
    isInstance(obj): obj is FrameLoader;
};

interface FrameScriptLoader {
    getDelayedFrameScripts(): any[][];
    loadFrameScript(url: string, allowDelayedLoad: boolean, runInGlobalScope?: boolean): void;
    removeDelayedFrameScript(url: string): void;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPU)
 */
interface GPU {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPU/getPreferredCanvasFormat) */
    getPreferredCanvasFormat(): GPUTextureFormat;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPU/requestAdapter) */
    requestAdapter(options?: GPURequestAdapterOptions): Promise<GPUAdapter | null>;
}

declare var GPU: {
    prototype: GPU;
    new(): GPU;
    isInstance(obj): obj is GPU;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter)
 */
interface GPUAdapter {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter/features) */
    readonly features: GPUSupportedFeatures;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter/isFallbackAdapter) */
    readonly isFallbackAdapter: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter/limits) */
    readonly limits: GPUSupportedLimits;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter/requestAdapterInfo) */
    requestAdapterInfo(unmaskHints?: string[]): Promise<GPUAdapterInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapter/requestDevice) */
    requestDevice(descriptor?: GPUDeviceDescriptor): Promise<GPUDevice>;
}

declare var GPUAdapter: {
    prototype: GPUAdapter;
    new(): GPUAdapter;
    isInstance(obj): obj is GPUAdapter;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapterInfo)
 */
interface GPUAdapterInfo {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapterInfo/architecture) */
    readonly architecture: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapterInfo/description) */
    readonly description: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapterInfo/device) */
    readonly device: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUAdapterInfo/vendor) */
    readonly vendor: string;
    readonly wgpuBackend: string;
    readonly wgpuDevice: number;
    readonly wgpuDeviceType: string;
    readonly wgpuDriver: string;
    readonly wgpuDriverInfo: string;
    readonly wgpuName: string;
    readonly wgpuVendor: number;
}

declare var GPUAdapterInfo: {
    prototype: GPUAdapterInfo;
    new(): GPUAdapterInfo;
    isInstance(obj): obj is GPUAdapterInfo;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBindGroup)
 */
interface GPUBindGroup extends GPUObjectBase {
}

declare var GPUBindGroup: {
    prototype: GPUBindGroup;
    new(): GPUBindGroup;
    isInstance(obj): obj is GPUBindGroup;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBindGroupLayout)
 */
interface GPUBindGroupLayout extends GPUObjectBase {
}

declare var GPUBindGroupLayout: {
    prototype: GPUBindGroupLayout;
    new(): GPUBindGroupLayout;
    isInstance(obj): obj is GPUBindGroupLayout;
};

interface GPUBindingCommandsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder/setBindGroup) */
    setBindGroup(index: GPUIndex32, bindGroup: GPUBindGroup, dynamicOffsets?: GPUBufferDynamicOffset[]): void;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer)
 */
interface GPUBuffer extends GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/mapState) */
    readonly mapState: GPUBufferMapState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/size) */
    readonly size: GPUSize64Out;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/usage) */
    readonly usage: GPUFlagsConstant;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/destroy) */
    destroy(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/getMappedRange) */
    getMappedRange(offset?: GPUSize64, size?: GPUSize64): ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/mapAsync) */
    mapAsync(mode: GPUMapModeFlags, offset?: GPUSize64, size?: GPUSize64): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBuffer/unmap) */
    unmap(): void;
}

declare var GPUBuffer: {
    prototype: GPUBuffer;
    new(): GPUBuffer;
    isInstance(obj): obj is GPUBuffer;
};

/** Available only in secure contexts. */
interface GPUBufferUsage {
    readonly MAP_READ: 0x0001;
    readonly MAP_WRITE: 0x0002;
    readonly COPY_SRC: 0x0004;
    readonly COPY_DST: 0x0008;
    readonly INDEX: 0x0010;
    readonly VERTEX: 0x0020;
    readonly UNIFORM: 0x0040;
    readonly STORAGE: 0x0080;
    readonly INDIRECT: 0x0100;
    readonly QUERY_RESOLVE: 0x0200;
}

declare var GPUBufferUsage: {
    prototype: GPUBufferUsage;
    new(): GPUBufferUsage;
    readonly MAP_READ: 0x0001;
    readonly MAP_WRITE: 0x0002;
    readonly COPY_SRC: 0x0004;
    readonly COPY_DST: 0x0008;
    readonly INDEX: 0x0010;
    readonly VERTEX: 0x0020;
    readonly UNIFORM: 0x0040;
    readonly STORAGE: 0x0080;
    readonly INDIRECT: 0x0100;
    readonly QUERY_RESOLVE: 0x0200;
    isInstance(obj): obj is GPUBufferUsage;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCanvasContext)
 */
interface GPUCanvasContext {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCanvasContext/canvas) */
    readonly canvas: HTMLCanvasElement | OffscreenCanvas;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCanvasContext/configure) */
    configure(configuration: GPUCanvasConfiguration): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCanvasContext/getCurrentTexture) */
    getCurrentTexture(): GPUTexture;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCanvasContext/unconfigure) */
    unconfigure(): void;
}

declare var GPUCanvasContext: {
    prototype: GPUCanvasContext;
    new(): GPUCanvasContext;
    isInstance(obj): obj is GPUCanvasContext;
};

/** Available only in secure contexts. */
interface GPUColorWrite {
    readonly RED: 0x1;
    readonly GREEN: 0x2;
    readonly BLUE: 0x4;
    readonly ALPHA: 0x8;
    readonly ALL: 0xF;
}

declare var GPUColorWrite: {
    prototype: GPUColorWrite;
    new(): GPUColorWrite;
    readonly RED: 0x1;
    readonly GREEN: 0x2;
    readonly BLUE: 0x4;
    readonly ALPHA: 0x8;
    readonly ALL: 0xF;
    isInstance(obj): obj is GPUColorWrite;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandBuffer)
 */
interface GPUCommandBuffer extends GPUObjectBase {
}

declare var GPUCommandBuffer: {
    prototype: GPUCommandBuffer;
    new(): GPUCommandBuffer;
    isInstance(obj): obj is GPUCommandBuffer;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder)
 */
interface GPUCommandEncoder extends GPUDebugCommandsMixin, GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/beginComputePass) */
    beginComputePass(descriptor?: GPUComputePassDescriptor): GPUComputePassEncoder;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/beginRenderPass) */
    beginRenderPass(descriptor: GPURenderPassDescriptor): GPURenderPassEncoder;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/clearBuffer) */
    clearBuffer(buffer: GPUBuffer, offset?: GPUSize64, size?: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/copyBufferToBuffer) */
    copyBufferToBuffer(source: GPUBuffer, sourceOffset: GPUSize64, destination: GPUBuffer, destinationOffset: GPUSize64, size: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/copyBufferToTexture) */
    copyBufferToTexture(source: GPUImageCopyBuffer, destination: GPUImageCopyTexture, copySize: GPUExtent3D): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/copyTextureToBuffer) */
    copyTextureToBuffer(source: GPUImageCopyTexture, destination: GPUImageCopyBuffer, copySize: GPUExtent3D): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/copyTextureToTexture) */
    copyTextureToTexture(source: GPUImageCopyTexture, destination: GPUImageCopyTexture, copySize: GPUExtent3D): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/finish) */
    finish(descriptor?: GPUCommandBufferDescriptor): GPUCommandBuffer;
}

declare var GPUCommandEncoder: {
    prototype: GPUCommandEncoder;
    new(): GPUCommandEncoder;
    isInstance(obj): obj is GPUCommandEncoder;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationInfo)
 */
interface GPUCompilationInfo {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationInfo/messages) */
    readonly messages: GPUCompilationMessage[];
}

declare var GPUCompilationInfo: {
    prototype: GPUCompilationInfo;
    new(): GPUCompilationInfo;
    isInstance(obj): obj is GPUCompilationInfo;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage)
 */
interface GPUCompilationMessage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/lineNum) */
    readonly lineNum: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/linePos) */
    readonly linePos: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/message) */
    readonly message: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/offset) */
    readonly offset: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCompilationMessage/type) */
    readonly type: GPUCompilationMessageType;
}

declare var GPUCompilationMessage: {
    prototype: GPUCompilationMessage;
    new(): GPUCompilationMessage;
    isInstance(obj): obj is GPUCompilationMessage;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder)
 */
interface GPUComputePassEncoder extends GPUBindingCommandsMixin, GPUDebugCommandsMixin, GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder/dispatchWorkgroups) */
    dispatchWorkgroups(workgroupCountX: GPUSize32, workgroupCountY?: GPUSize32, workgroupCountZ?: GPUSize32): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder/dispatchWorkgroupsIndirect) */
    dispatchWorkgroupsIndirect(indirectBuffer: GPUBuffer, indirectOffset: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder/end) */
    end(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePassEncoder/setPipeline) */
    setPipeline(pipeline: GPUComputePipeline): void;
}

declare var GPUComputePassEncoder: {
    prototype: GPUComputePassEncoder;
    new(): GPUComputePassEncoder;
    isInstance(obj): obj is GPUComputePassEncoder;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePipeline)
 */
interface GPUComputePipeline extends GPUObjectBase, GPUPipelineBase {
}

declare var GPUComputePipeline: {
    prototype: GPUComputePipeline;
    new(): GPUComputePipeline;
    isInstance(obj): obj is GPUComputePipeline;
};

interface GPUDebugCommandsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/insertDebugMarker) */
    insertDebugMarker(markerLabel: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/popDebugGroup) */
    popDebugGroup(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUCommandEncoder/pushDebugGroup) */
    pushDebugGroup(groupLabel: string): void;
}

interface GPUDeviceEventMap {
    "uncapturederror": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice)
 */
interface GPUDevice extends EventTarget, GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/features) */
    readonly features: GPUSupportedFeatures;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/limits) */
    readonly limits: GPUSupportedLimits;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/lost) */
    readonly lost: Promise<GPUDeviceLostInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/uncapturederror_event) */
    onuncapturederror: ((this: GPUDevice, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/queue) */
    readonly queue: GPUQueue;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createBindGroup) */
    createBindGroup(descriptor: GPUBindGroupDescriptor): GPUBindGroup;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createBindGroupLayout) */
    createBindGroupLayout(descriptor: GPUBindGroupLayoutDescriptor): GPUBindGroupLayout;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createBuffer) */
    createBuffer(descriptor: GPUBufferDescriptor): GPUBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createCommandEncoder) */
    createCommandEncoder(descriptor?: GPUCommandEncoderDescriptor): GPUCommandEncoder;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createComputePipeline) */
    createComputePipeline(descriptor: GPUComputePipelineDescriptor): GPUComputePipeline;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createComputePipelineAsync) */
    createComputePipelineAsync(descriptor: GPUComputePipelineDescriptor): Promise<GPUComputePipeline>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createPipelineLayout) */
    createPipelineLayout(descriptor: GPUPipelineLayoutDescriptor): GPUPipelineLayout;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createRenderBundleEncoder) */
    createRenderBundleEncoder(descriptor: GPURenderBundleEncoderDescriptor): GPURenderBundleEncoder;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createRenderPipeline) */
    createRenderPipeline(descriptor: GPURenderPipelineDescriptor): GPURenderPipeline;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createRenderPipelineAsync) */
    createRenderPipelineAsync(descriptor: GPURenderPipelineDescriptor): Promise<GPURenderPipeline>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createSampler) */
    createSampler(descriptor?: GPUSamplerDescriptor): GPUSampler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createShaderModule) */
    createShaderModule(descriptor: GPUShaderModuleDescriptor): GPUShaderModule;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/createTexture) */
    createTexture(descriptor: GPUTextureDescriptor): GPUTexture;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/destroy) */
    destroy(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/popErrorScope) */
    popErrorScope(): Promise<GPUError | null>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDevice/pushErrorScope) */
    pushErrorScope(filter: GPUErrorFilter): void;
    addEventListener<K extends keyof GPUDeviceEventMap>(type: K, listener: (this: GPUDevice, ev: GPUDeviceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof GPUDeviceEventMap>(type: K, listener: (this: GPUDevice, ev: GPUDeviceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var GPUDevice: {
    prototype: GPUDevice;
    new(): GPUDevice;
    isInstance(obj): obj is GPUDevice;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDeviceLostInfo)
 */
interface GPUDeviceLostInfo {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDeviceLostInfo/message) */
    readonly message: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUDeviceLostInfo/reason) */
    readonly reason: any;
}

declare var GPUDeviceLostInfo: {
    prototype: GPUDeviceLostInfo;
    new(): GPUDeviceLostInfo;
    isInstance(obj): obj is GPUDeviceLostInfo;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUError)
 */
interface GPUError {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUError/message) */
    readonly message: string;
}

declare var GPUError: {
    prototype: GPUError;
    new(): GPUError;
    isInstance(obj): obj is GPUError;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUInternalError)
 */
interface GPUInternalError extends GPUError {
}

declare var GPUInternalError: {
    prototype: GPUInternalError;
    new(message: string): GPUInternalError;
    isInstance(obj): obj is GPUInternalError;
};

/** Available only in secure contexts. */
interface GPUMapMode {
    readonly READ: 0x0001;
    readonly WRITE: 0x0002;
}

declare var GPUMapMode: {
    prototype: GPUMapMode;
    new(): GPUMapMode;
    readonly READ: 0x0001;
    readonly WRITE: 0x0002;
    isInstance(obj): obj is GPUMapMode;
};

interface GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUBindGroup/label) */
    label: string | null;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUOutOfMemoryError)
 */
interface GPUOutOfMemoryError extends GPUError {
}

declare var GPUOutOfMemoryError: {
    prototype: GPUOutOfMemoryError;
    new(message: string): GPUOutOfMemoryError;
    isInstance(obj): obj is GPUOutOfMemoryError;
};

interface GPUPipelineBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUComputePipeline/getBindGroupLayout) */
    getBindGroupLayout(index: number): GPUBindGroupLayout;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUPipelineLayout)
 */
interface GPUPipelineLayout extends GPUObjectBase {
}

declare var GPUPipelineLayout: {
    prototype: GPUPipelineLayout;
    new(): GPUPipelineLayout;
    isInstance(obj): obj is GPUPipelineLayout;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQuerySet)
 */
interface GPUQuerySet extends GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQuerySet/destroy) */
    destroy(): void;
}

declare var GPUQuerySet: {
    prototype: GPUQuerySet;
    new(): GPUQuerySet;
    isInstance(obj): obj is GPUQuerySet;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue)
 */
interface GPUQueue extends GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue/copyExternalImageToTexture) */
    copyExternalImageToTexture(source: GPUImageCopyExternalImage, destination: GPUImageCopyTextureTagged, copySize: GPUExtent3D): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue/onSubmittedWorkDone) */
    onSubmittedWorkDone(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue/submit) */
    submit(buffers: GPUCommandBuffer[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue/writeBuffer) */
    writeBuffer(buffer: GPUBuffer, bufferOffset: GPUSize64, data: BufferSource, dataOffset?: GPUSize64, size?: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUQueue/writeTexture) */
    writeTexture(destination: GPUImageCopyTexture, data: BufferSource, dataLayout: GPUImageDataLayout, size: GPUExtent3D): void;
}

declare var GPUQueue: {
    prototype: GPUQueue;
    new(): GPUQueue;
    isInstance(obj): obj is GPUQueue;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundle)
 */
interface GPURenderBundle extends GPUObjectBase {
}

declare var GPURenderBundle: {
    prototype: GPURenderBundle;
    new(): GPURenderBundle;
    isInstance(obj): obj is GPURenderBundle;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder)
 */
interface GPURenderBundleEncoder extends GPUBindingCommandsMixin, GPUDebugCommandsMixin, GPUObjectBase, GPURenderCommandsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/finish) */
    finish(descriptor?: GPURenderBundleDescriptor): GPURenderBundle;
}

declare var GPURenderBundleEncoder: {
    prototype: GPURenderBundleEncoder;
    new(): GPURenderBundleEncoder;
    isInstance(obj): obj is GPURenderBundleEncoder;
};

interface GPURenderCommandsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/draw) */
    draw(vertexCount: GPUSize32, instanceCount?: GPUSize32, firstVertex?: GPUSize32, firstInstance?: GPUSize32): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/drawIndexed) */
    drawIndexed(indexCount: GPUSize32, instanceCount?: GPUSize32, firstIndex?: GPUSize32, baseVertex?: GPUSignedOffset32, firstInstance?: GPUSize32): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/drawIndexedIndirect) */
    drawIndexedIndirect(indirectBuffer: GPUBuffer, indirectOffset: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/drawIndirect) */
    drawIndirect(indirectBuffer: GPUBuffer, indirectOffset: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/setIndexBuffer) */
    setIndexBuffer(buffer: GPUBuffer, indexFormat: GPUIndexFormat, offset?: GPUSize64, size?: GPUSize64): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/setPipeline) */
    setPipeline(pipeline: GPURenderPipeline): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderBundleEncoder/setVertexBuffer) */
    setVertexBuffer(slot: GPUIndex32, buffer: GPUBuffer, offset?: GPUSize64, size?: GPUSize64): void;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder)
 */
interface GPURenderPassEncoder extends GPUBindingCommandsMixin, GPUDebugCommandsMixin, GPUObjectBase, GPURenderCommandsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/end) */
    end(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/executeBundles) */
    executeBundles(bundles: GPURenderBundle[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/setBlendConstant) */
    setBlendConstant(color: GPUColor): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/setScissorRect) */
    setScissorRect(x: GPUIntegerCoordinate, y: GPUIntegerCoordinate, width: GPUIntegerCoordinate, height: GPUIntegerCoordinate): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/setStencilReference) */
    setStencilReference(reference: GPUStencilValue): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPassEncoder/setViewport) */
    setViewport(x: number, y: number, width: number, height: number, minDepth: number, maxDepth: number): void;
}

declare var GPURenderPassEncoder: {
    prototype: GPURenderPassEncoder;
    new(): GPURenderPassEncoder;
    isInstance(obj): obj is GPURenderPassEncoder;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPURenderPipeline)
 */
interface GPURenderPipeline extends GPUObjectBase, GPUPipelineBase {
}

declare var GPURenderPipeline: {
    prototype: GPURenderPipeline;
    new(): GPURenderPipeline;
    isInstance(obj): obj is GPURenderPipeline;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUSampler)
 */
interface GPUSampler extends GPUObjectBase {
}

declare var GPUSampler: {
    prototype: GPUSampler;
    new(): GPUSampler;
    isInstance(obj): obj is GPUSampler;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUShaderModule)
 */
interface GPUShaderModule extends GPUObjectBase {
    compilationInfo(): Promise<GPUCompilationInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUShaderModule/getCompilationInfo) */
    getCompilationInfo(): Promise<GPUCompilationInfo>;
}

declare var GPUShaderModule: {
    prototype: GPUShaderModule;
    new(): GPUShaderModule;
    isInstance(obj): obj is GPUShaderModule;
};

/** Available only in secure contexts. */
interface GPUShaderStage {
    readonly VERTEX: 0x1;
    readonly FRAGMENT: 0x2;
    readonly COMPUTE: 0x4;
}

declare var GPUShaderStage: {
    prototype: GPUShaderStage;
    new(): GPUShaderStage;
    readonly VERTEX: 0x1;
    readonly FRAGMENT: 0x2;
    readonly COMPUTE: 0x4;
    isInstance(obj): obj is GPUShaderStage;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUSupportedFeatures)
 */
interface GPUSupportedFeatures {
    forEach(callbackfn: (value: string, key: string, parent: GPUSupportedFeatures) => void, thisArg?: any): void;
}

declare var GPUSupportedFeatures: {
    prototype: GPUSupportedFeatures;
    new(): GPUSupportedFeatures;
    isInstance(obj): obj is GPUSupportedFeatures;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUSupportedLimits)
 */
interface GPUSupportedLimits {
    readonly maxBindGroups: number;
    readonly maxBindGroupsPlusVertexBuffers: number;
    readonly maxBindingsPerBindGroup: number;
    readonly maxBufferSize: number;
    readonly maxColorAttachmentBytesPerSample: number;
    readonly maxColorAttachments: number;
    readonly maxComputeInvocationsPerWorkgroup: number;
    readonly maxComputeWorkgroupSizeX: number;
    readonly maxComputeWorkgroupSizeY: number;
    readonly maxComputeWorkgroupSizeZ: number;
    readonly maxComputeWorkgroupStorageSize: number;
    readonly maxComputeWorkgroupsPerDimension: number;
    readonly maxDynamicStorageBuffersPerPipelineLayout: number;
    readonly maxDynamicUniformBuffersPerPipelineLayout: number;
    readonly maxInterStageShaderComponents: number;
    readonly maxInterStageShaderVariables: number;
    readonly maxSampledTexturesPerShaderStage: number;
    readonly maxSamplersPerShaderStage: number;
    readonly maxStorageBufferBindingSize: number;
    readonly maxStorageBuffersPerShaderStage: number;
    readonly maxStorageTexturesPerShaderStage: number;
    readonly maxTextureArrayLayers: number;
    readonly maxTextureDimension1D: number;
    readonly maxTextureDimension2D: number;
    readonly maxTextureDimension3D: number;
    readonly maxUniformBufferBindingSize: number;
    readonly maxUniformBuffersPerShaderStage: number;
    readonly maxVertexAttributes: number;
    readonly maxVertexBufferArrayStride: number;
    readonly maxVertexBuffers: number;
    readonly minStorageBufferOffsetAlignment: number;
    readonly minUniformBufferOffsetAlignment: number;
}

declare var GPUSupportedLimits: {
    prototype: GPUSupportedLimits;
    new(): GPUSupportedLimits;
    isInstance(obj): obj is GPUSupportedLimits;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture)
 */
interface GPUTexture extends GPUObjectBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/depthOrArrayLayers) */
    readonly depthOrArrayLayers: GPUIntegerCoordinateOut;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/dimension) */
    readonly dimension: GPUTextureDimension;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/format) */
    readonly format: GPUTextureFormat;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/height) */
    readonly height: GPUIntegerCoordinateOut;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/mipLevelCount) */
    readonly mipLevelCount: GPUIntegerCoordinateOut;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/sampleCount) */
    readonly sampleCount: GPUSize32Out;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/usage) */
    readonly usage: GPUFlagsConstant;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/width) */
    readonly width: GPUIntegerCoordinateOut;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/createView) */
    createView(descriptor?: GPUTextureViewDescriptor): GPUTextureView;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTexture/destroy) */
    destroy(): void;
}

declare var GPUTexture: {
    prototype: GPUTexture;
    new(): GPUTexture;
    isInstance(obj): obj is GPUTexture;
};

/** Available only in secure contexts. */
interface GPUTextureUsage {
    readonly COPY_SRC: 0x01;
    readonly COPY_DST: 0x02;
    readonly TEXTURE_BINDING: 0x04;
    readonly STORAGE_BINDING: 0x08;
    readonly RENDER_ATTACHMENT: 0x10;
}

declare var GPUTextureUsage: {
    prototype: GPUTextureUsage;
    new(): GPUTextureUsage;
    readonly COPY_SRC: 0x01;
    readonly COPY_DST: 0x02;
    readonly TEXTURE_BINDING: 0x04;
    readonly STORAGE_BINDING: 0x08;
    readonly RENDER_ATTACHMENT: 0x10;
    isInstance(obj): obj is GPUTextureUsage;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUTextureView)
 */
interface GPUTextureView extends GPUObjectBase {
}

declare var GPUTextureView: {
    prototype: GPUTextureView;
    new(): GPUTextureView;
    isInstance(obj): obj is GPUTextureView;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUUncapturedErrorEvent)
 */
interface GPUUncapturedErrorEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUUncapturedErrorEvent/error) */
    "error": ErrorEvent;
}

declare var GPUUncapturedErrorEvent: {
    prototype: GPUUncapturedErrorEvent;
    new(type: string, gpuUncapturedErrorEventInitDict: GPUUncapturedErrorEventInit): GPUUncapturedErrorEvent;
    isInstance(obj): obj is GPUUncapturedErrorEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GPUValidationError)
 */
interface GPUValidationError extends GPUError {
}

declare var GPUValidationError: {
    prototype: GPUValidationError;
    new(message: string): GPUValidationError;
    isInstance(obj): obj is GPUValidationError;
};

/**
 * A change in volume. It is an AudioNode audio-processing module that causes a given gain to be applied to the input data before its propagation to the output. A GainNode always has exactly one input and one output, both with the same number of channels.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GainNode)
 */
interface GainNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GainNode/gain) */
    readonly gain: AudioParam;
}

declare var GainNode: {
    prototype: GainNode;
    new(context: BaseAudioContext, options?: GainOptions): GainNode;
    isInstance(obj): obj is GainNode;
};

/**
 * This Gamepad API interface defines an individual gamepad or other controller, allowing access to information such as button presses, axis positions, and id.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad)
 */
interface Gamepad {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/axes) */
    readonly axes: number[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/buttons) */
    readonly buttons: GamepadButton[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/connected) */
    readonly connected: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/displayId)
     */
    readonly displayId: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/hand) */
    readonly hand: GamepadHand;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/hapticActuators) */
    readonly hapticActuators: GamepadHapticActuator[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/index) */
    readonly index: number;
    readonly lightIndicators: GamepadLightIndicator[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/mapping) */
    readonly mapping: GamepadMappingType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/pose) */
    readonly pose: GamepadPose | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Gamepad/timestamp) */
    readonly timestamp: DOMHighResTimeStamp;
    readonly touchEvents: GamepadTouch[];
}

declare var Gamepad: {
    prototype: Gamepad;
    new(): Gamepad;
    isInstance(obj): obj is Gamepad;
};

/** Available only in secure contexts. */
interface GamepadAxisMoveEvent extends GamepadEvent {
    readonly axis: number;
    readonly value: number;
}

declare var GamepadAxisMoveEvent: {
    prototype: GamepadAxisMoveEvent;
    new(type: string, eventInitDict?: GamepadAxisMoveEventInit): GamepadAxisMoveEvent;
    isInstance(obj): obj is GamepadAxisMoveEvent;
};

/**
 * An individual button of a gamepad or other controller, allowing access to the current state of different types of buttons available on the control device.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadButton)
 */
interface GamepadButton {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadButton/pressed) */
    readonly pressed: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadButton/touched) */
    readonly touched: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadButton/value) */
    readonly value: number;
}

declare var GamepadButton: {
    prototype: GamepadButton;
    new(): GamepadButton;
    isInstance(obj): obj is GamepadButton;
};

/** Available only in secure contexts. */
interface GamepadButtonEvent extends GamepadEvent {
    readonly button: number;
}

declare var GamepadButtonEvent: {
    prototype: GamepadButtonEvent;
    new(type: string, eventInitDict?: GamepadButtonEventInit): GamepadButtonEvent;
    isInstance(obj): obj is GamepadButtonEvent;
};

/**
 * This Gamepad API interface contains references to gamepads connected to the system, which is what the gamepad events Window.gamepadconnected and Window.gamepaddisconnected are fired in response to.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadEvent)
 */
interface GamepadEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadEvent/gamepad) */
    readonly gamepad: Gamepad | null;
}

declare var GamepadEvent: {
    prototype: GamepadEvent;
    new(type: string, eventInitDict?: GamepadEventInit): GamepadEvent;
    isInstance(obj): obj is GamepadEvent;
};

/**
 * This Gamepad API interface represents hardware in the controller designed to provide haptic feedback to the user (if available), most commonly vibration hardware.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadHapticActuator)
 */
interface GamepadHapticActuator {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadHapticActuator/type) */
    readonly type: GamepadHapticActuatorType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadHapticActuator/pulse) */
    pulse(value: number, duration: number): Promise<boolean>;
}

declare var GamepadHapticActuator: {
    prototype: GamepadHapticActuator;
    new(): GamepadHapticActuator;
    isInstance(obj): obj is GamepadHapticActuator;
};

/** Available only in secure contexts. */
interface GamepadLightIndicator {
    readonly type: GamepadLightIndicatorType;
    setColor(color: GamepadLightColor): Promise<boolean>;
}

declare var GamepadLightIndicator: {
    prototype: GamepadLightIndicator;
    new(): GamepadLightIndicator;
    isInstance(obj): obj is GamepadLightIndicator;
};

/**
 * This Gamepad API interface represents the pose of a WebVR controller at a given timestamp (which includes orientation, position, velocity, and acceleration information.)
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose)
 */
interface GamepadPose {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/angularAcceleration) */
    readonly angularAcceleration: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/angularVelocity) */
    readonly angularVelocity: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/hasOrientation) */
    readonly hasOrientation: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/hasPosition) */
    readonly hasPosition: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/linearAcceleration) */
    readonly linearAcceleration: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/linearVelocity) */
    readonly linearVelocity: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/orientation) */
    readonly orientation: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GamepadPose/position) */
    readonly position: Float32Array | null;
}

declare var GamepadPose: {
    prototype: GamepadPose;
    new(): GamepadPose;
    isInstance(obj): obj is GamepadPose;
};

interface GamepadServiceTest {
    readonly leftHand: GamepadHand;
    readonly noHand: GamepadHand;
    readonly noMapping: GamepadMappingType;
    readonly rightHand: GamepadHand;
    readonly standardMapping: GamepadMappingType;
    addGamepad(id: string, mapping: GamepadMappingType, hand: GamepadHand, numButtons: number, numAxes: number, numHaptics: number, numLightIndicator: number, numTouchEvents: number): Promise<number>;
    newAxisMoveEvent(index: number, axis: number, value: number): Promise<number>;
    newButtonEvent(index: number, button: number, pressed: boolean, touched: boolean): Promise<number>;
    newButtonValueEvent(index: number, button: number, pressed: boolean, touched: boolean, value: number): Promise<number>;
    newPoseMove(index: number, orient: Float32Array | null, pos: Float32Array | null, angVelocity: Float32Array | null, angAcceleration: Float32Array | null, linVelocity: Float32Array | null, linAcceleration: Float32Array | null): Promise<number>;
    newTouch(index: number, aTouchArrayIndex: number, touchId: number, surfaceId: number, position: Float32Array, surfaceDimension: Float32Array | null): Promise<number>;
    removeGamepad(index: number): Promise<number>;
}

declare var GamepadServiceTest: {
    prototype: GamepadServiceTest;
    new(): GamepadServiceTest;
    isInstance(obj): obj is GamepadServiceTest;
};

/** Available only in secure contexts. */
interface GamepadTouch {
    readonly position: Float32Array;
    readonly surfaceDimensions: Uint32Array | null;
    readonly surfaceId: number;
    readonly touchId: number;
}

declare var GamepadTouch: {
    prototype: GamepadTouch;
    new(): GamepadTouch;
    isInstance(obj): obj is GamepadTouch;
};

interface GenericTransformStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompressionStream/readable) */
    readonly readable: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CompressionStream/writable) */
    readonly writable: WritableStream;
}

/**
 * An object able to programmatically obtain the position of the device. It gives Web content access to the location of the device. This allows a Web site or app to offer customized results based on the user's location.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Geolocation)
 */
interface Geolocation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Geolocation/clearWatch) */
    clearWatch(watchId: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Geolocation/getCurrentPosition) */
    getCurrentPosition(successCallback: PositionCallback, errorCallback?: PositionErrorCallback | null, options?: PositionOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Geolocation/watchPosition) */
    watchPosition(successCallback: PositionCallback, errorCallback?: PositionErrorCallback | null, options?: PositionOptions): number;
}

declare var Geolocation: {
    prototype: Geolocation;
    new(): Geolocation;
    isInstance(obj): obj is Geolocation;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates)
 */
interface GeolocationCoordinates {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/accuracy) */
    readonly accuracy: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/altitude) */
    readonly altitude: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/altitudeAccuracy) */
    readonly altitudeAccuracy: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/heading) */
    readonly heading: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/latitude) */
    readonly latitude: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/longitude) */
    readonly longitude: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationCoordinates/speed) */
    readonly speed: number | null;
}

declare var GeolocationCoordinates: {
    prototype: GeolocationCoordinates;
    new(): GeolocationCoordinates;
    isInstance(obj): obj is GeolocationCoordinates;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPosition)
 */
interface GeolocationPosition {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPosition/coords) */
    readonly coords: GeolocationCoordinates;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPosition/timestamp) */
    readonly timestamp: EpochTimeStamp;
}

declare var GeolocationPosition: {
    prototype: GeolocationPosition;
    new(): GeolocationPosition;
    isInstance(obj): obj is GeolocationPosition;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPositionError) */
interface GeolocationPositionError {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPositionError/code) */
    readonly code: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/GeolocationPositionError/message) */
    readonly message: string;
    readonly PERMISSION_DENIED: 1;
    readonly POSITION_UNAVAILABLE: 2;
    readonly TIMEOUT: 3;
}

declare var GeolocationPositionError: {
    prototype: GeolocationPositionError;
    new(): GeolocationPositionError;
    readonly PERMISSION_DENIED: 1;
    readonly POSITION_UNAVAILABLE: 2;
    readonly TIMEOUT: 3;
    isInstance(obj): obj is GeolocationPositionError;
};

interface GeometryUtils {
    convertPointFromNode(point: DOMPointInit, from: GeometryNode, options?: ConvertCoordinateOptions): DOMPoint;
    convertQuadFromNode(quad: DOMQuad, from: GeometryNode, options?: ConvertCoordinateOptions): DOMQuad;
    convertRectFromNode(rect: DOMRectReadOnly, from: GeometryNode, options?: ConvertCoordinateOptions): DOMQuad;
    getBoxQuads(options?: BoxQuadOptions): DOMQuad[];
    getBoxQuadsFromWindowOrigin(options?: BoxQuadOptions): DOMQuad[];
}

interface GetUserMediaRequest {
    readonly callID: string;
    readonly devices: nsIMediaDevice[];
    readonly innerWindowID: number;
    readonly isHandlingUserInput: boolean;
    readonly isSecure: boolean;
    readonly mediaSource: string;
    readonly rawID: string;
    readonly type: GetUserMediaRequestType;
    readonly windowID: number;
    getAudioOutputOptions(): AudioOutputOptions;
    getConstraints(): MediaStreamConstraints;
}

interface GleanBoolean extends GleanMetric {
    set(value: boolean): void;
    testGetValue(aPingName?: UTF8String): boolean | null;
}

declare var GleanBoolean: {
    prototype: GleanBoolean;
    new(): GleanBoolean;
    isInstance(obj): obj is GleanBoolean;
};

interface GleanCategory {
    [identifier: string]: GleanMetric;
}

declare var GleanCategory: {
    prototype: GleanCategory;
    new(): GleanCategory;
    isInstance(obj): obj is GleanCategory;
};

interface GleanCounter extends GleanMetric {
    add(aAmount?: number): void;
    testGetValue(aPingName?: UTF8String): number | null;
}

declare var GleanCounter: {
    prototype: GleanCounter;
    new(): GleanCounter;
    isInstance(obj): obj is GleanCounter;
};

interface GleanCustomDistribution extends GleanMetric {
    accumulateSamples(aSamples: number[]): void;
    testGetValue(aPingName?: UTF8String): GleanDistributionData | null;
}

declare var GleanCustomDistribution: {
    prototype: GleanCustomDistribution;
    new(): GleanCustomDistribution;
    isInstance(obj): obj is GleanCustomDistribution;
};

interface GleanDatetime extends GleanMetric {
    set(aValue?: number): void;
    testGetValue(aPingName?: UTF8String): any;
}

declare var GleanDatetime: {
    prototype: GleanDatetime;
    new(): GleanDatetime;
    isInstance(obj): obj is GleanDatetime;
};

interface GleanDenominator extends GleanMetric {
    add(aAmount?: number): void;
    testGetValue(aPingName?: UTF8String): number | null;
}

declare var GleanDenominator: {
    prototype: GleanDenominator;
    new(): GleanDenominator;
    isInstance(obj): obj is GleanDenominator;
};

interface GleanEvent extends GleanMetric {
    record(aExtra?: Record<UTF8String, UTF8String | null>): void;
    testGetValue(aPingName?: UTF8String): GleanEventRecord[] | null;
}

declare var GleanEvent: {
    prototype: GleanEvent;
    new(): GleanEvent;
    isInstance(obj): obj is GleanEvent;
};

interface GleanImpl {
    [identifier: string]: GleanCategory;
}

declare var GleanImpl: {
    prototype: GleanImpl;
    new(): GleanImpl;
    isInstance(obj): obj is GleanImpl;
};

interface GleanLabeled {
    [identifier: string]: GleanMetric;
}

declare var GleanLabeled: {
    prototype: GleanLabeled;
    new(): GleanLabeled;
    isInstance(obj): obj is GleanLabeled;
};

interface GleanMemoryDistribution extends GleanMetric {
    accumulate(aSample: number): void;
    testGetValue(aPingName?: UTF8String): GleanDistributionData | null;
}

declare var GleanMemoryDistribution: {
    prototype: GleanMemoryDistribution;
    new(): GleanMemoryDistribution;
    isInstance(obj): obj is GleanMemoryDistribution;
};

interface GleanMetric {
}

declare var GleanMetric: {
    prototype: GleanMetric;
    new(): GleanMetric;
    isInstance(obj): obj is GleanMetric;
};

interface GleanNumerator extends GleanMetric {
    addToNumerator(aAmount?: number): void;
    testGetValue(aPingName?: UTF8String): GleanRateData | null;
}

declare var GleanNumerator: {
    prototype: GleanNumerator;
    new(): GleanNumerator;
    isInstance(obj): obj is GleanNumerator;
};

interface GleanPingsImpl {
    [identifier: string]: nsIGleanPing;
}

declare var GleanPingsImpl: {
    prototype: GleanPingsImpl;
    new(): GleanPingsImpl;
    isInstance(obj): obj is GleanPingsImpl;
};

interface GleanQuantity extends GleanMetric {
    set(aValue: number): void;
    testGetValue(aPingName?: UTF8String): number | null;
}

declare var GleanQuantity: {
    prototype: GleanQuantity;
    new(): GleanQuantity;
    isInstance(obj): obj is GleanQuantity;
};

interface GleanRate extends GleanMetric {
    addToDenominator(aAmount?: number): void;
    addToNumerator(aAmount?: number): void;
    testGetValue(aPingName?: UTF8String): GleanRateData | null;
}

declare var GleanRate: {
    prototype: GleanRate;
    new(): GleanRate;
    isInstance(obj): obj is GleanRate;
};

interface GleanString extends GleanMetric {
    set(aValue: UTF8String | null): void;
    testGetValue(aPingName?: UTF8String): UTF8String | null;
}

declare var GleanString: {
    prototype: GleanString;
    new(): GleanString;
    isInstance(obj): obj is GleanString;
};

interface GleanStringList extends GleanMetric {
    add(value: UTF8String): void;
    set(aValue: UTF8String[]): void;
    testGetValue(aPingName?: UTF8String): UTF8String[] | null;
}

declare var GleanStringList: {
    prototype: GleanStringList;
    new(): GleanStringList;
    isInstance(obj): obj is GleanStringList;
};

interface GleanText extends GleanMetric {
    set(aValue: UTF8String): void;
    testGetValue(aPingName?: UTF8String): UTF8String | null;
}

declare var GleanText: {
    prototype: GleanText;
    new(): GleanText;
    isInstance(obj): obj is GleanText;
};

interface GleanTimespan extends GleanMetric {
    cancel(): void;
    setRaw(aDuration: number): void;
    start(): void;
    stop(): void;
    testGetValue(aPingName?: UTF8String): number | null;
}

declare var GleanTimespan: {
    prototype: GleanTimespan;
    new(): GleanTimespan;
    isInstance(obj): obj is GleanTimespan;
};

interface GleanTimingDistribution extends GleanMetric {
    cancel(aId: number): void;
    start(): number;
    stopAndAccumulate(aId: number): void;
    testAccumulateRawMillis(aSample: number): void;
    testGetValue(aPingName?: UTF8String): GleanDistributionData | null;
}

declare var GleanTimingDistribution: {
    prototype: GleanTimingDistribution;
    new(): GleanTimingDistribution;
    isInstance(obj): obj is GleanTimingDistribution;
};

interface GleanUrl extends GleanMetric {
    set(aValue: UTF8String): void;
    testGetValue(aPingName?: UTF8String): UTF8String | null;
}

declare var GleanUrl: {
    prototype: GleanUrl;
    new(): GleanUrl;
    isInstance(obj): obj is GleanUrl;
};

interface GleanUuid extends GleanMetric {
    generateAndSet(): void;
    set(aValue: UTF8String): void;
    testGetValue(aPingName?: UTF8String): UTF8String | null;
}

declare var GleanUuid: {
    prototype: GleanUuid;
    new(): GleanUuid;
    isInstance(obj): obj is GleanUuid;
};

interface GlobalCrypto {
    readonly crypto: Crypto;
}

interface GlobalEventHandlersEventMap {
    "abort": Event;
    "animationcancel": Event;
    "animationend": Event;
    "animationiteration": Event;
    "animationstart": Event;
    "auxclick": Event;
    "beforeinput": Event;
    "beforetoggle": Event;
    "blur": Event;
    "cancel": Event;
    "canplay": Event;
    "canplaythrough": Event;
    "change": Event;
    "click": Event;
    "close": Event;
    "contextmenu": Event;
    "copy": Event;
    "cuechange": Event;
    "cut": Event;
    "dblclick": Event;
    "drag": Event;
    "dragend": Event;
    "dragenter": Event;
    "dragexit": Event;
    "dragleave": Event;
    "dragover": Event;
    "dragstart": Event;
    "drop": Event;
    "durationchange": Event;
    "emptied": Event;
    "ended": Event;
    "focus": Event;
    "formdata": Event;
    "gotpointercapture": Event;
    "input": Event;
    "invalid": Event;
    "keydown": Event;
    "keypress": Event;
    "keyup": Event;
    "load": Event;
    "loadeddata": Event;
    "loadedmetadata": Event;
    "loadstart": Event;
    "lostpointercapture": Event;
    "mousedown": Event;
    "mouseenter": Event;
    "mouseleave": Event;
    "mousemove": Event;
    "mouseout": Event;
    "mouseover": Event;
    "mouseup": Event;
    "mozfullscreenchange": Event;
    "mozfullscreenerror": Event;
    "paste": Event;
    "pause": Event;
    "play": Event;
    "playing": Event;
    "pointercancel": Event;
    "pointerdown": Event;
    "pointerenter": Event;
    "pointerleave": Event;
    "pointermove": Event;
    "pointerout": Event;
    "pointerover": Event;
    "pointerup": Event;
    "progress": Event;
    "ratechange": Event;
    "reset": Event;
    "resize": Event;
    "scroll": Event;
    "scrollend": Event;
    "securitypolicyviolation": Event;
    "seeked": Event;
    "seeking": Event;
    "select": Event;
    "selectionchange": Event;
    "selectstart": Event;
    "slotchange": Event;
    "stalled": Event;
    "submit": Event;
    "suspend": Event;
    "timeupdate": Event;
    "toggle": Event;
    "transitioncancel": Event;
    "transitionend": Event;
    "transitionrun": Event;
    "transitionstart": Event;
    "volumechange": Event;
    "waiting": Event;
    "webkitanimationend": Event;
    "webkitanimationiteration": Event;
    "webkitanimationstart": Event;
    "webkittransitionend": Event;
    "wheel": Event;
}

interface GlobalEventHandlers {
    /**
     * Fires when the user aborts the download.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/abort_event)
     */
    onabort: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationcancel_event) */
    onanimationcancel: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationend_event) */
    onanimationend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationiteration_event) */
    onanimationiteration: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationstart_event) */
    onanimationstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/auxclick_event) */
    onauxclick: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
    onbeforeinput: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
    onbeforetoggle: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the object loses the input focus.
     * @param ev The focus event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/blur_event)
     */
    onblur: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/cancel_event) */
    oncancel: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when playback is possible, but would require further buffering.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canplay_event)
     */
    oncanplay: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canplaythrough_event) */
    oncanplaythrough: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the contents of the object or selection have changed.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/change_event)
     */
    onchange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user clicks the left mouse button on the object
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/click_event)
     */
    onclick: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/close_event) */
    onclose: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user clicks the right mouse button in the client area, opening the context menu.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/contextmenu_event)
     */
    oncontextmenu: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/copy_event) */
    oncopy: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/cuechange_event) */
    oncuechange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/cut_event) */
    oncut: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user double-clicks the object.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/dblclick_event)
     */
    ondblclick: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the source object continuously during a drag operation.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/drag_event)
     */
    ondrag: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the source object when the user releases the mouse at the close of a drag operation.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dragend_event)
     */
    ondragend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the target element when the user drags the object to a valid drop target.
     * @param ev The drag event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dragenter_event)
     */
    ondragenter: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    ondragexit: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.
     * @param ev The drag event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dragleave_event)
     */
    ondragleave: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the target element continuously while the user drags the object over a valid drop target.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dragover_event)
     */
    ondragover: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires on the source object when the user starts to drag a text selection or selected object.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dragstart_event)
     */
    ondragstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/drop_event) */
    ondrop: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the duration attribute is updated.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/durationchange_event)
     */
    ondurationchange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the media element is reset to its initial state.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/emptied_event)
     */
    onemptied: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the end of playback is reached.
     * @param ev The event
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/ended_event)
     */
    onended: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when an error occurs during object loading.
     * @param ev The event.
     */
    onerror: OnErrorEventHandler;
    /**
     * Fires when the object receives focus.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/focus_event)
     */
    onfocus: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/formdata_event) */
    onformdata: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/gotpointercapture_event) */
    ongotpointercapture: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/input_event) */
    oninput: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/invalid_event) */
    oninvalid: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user presses a key.
     * @param ev The keyboard event
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/keydown_event)
     */
    onkeydown: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user presses an alphanumeric key.
     * @param ev The event.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/keypress_event)
     */
    onkeypress: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user releases a key.
     * @param ev The keyboard event
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/keyup_event)
     */
    onkeyup: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires immediately after the browser loads the object.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGElement/load_event)
     */
    onload: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when media data is loaded at the current playback position.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadeddata_event)
     */
    onloadeddata: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the duration and dimensions of the media have been determined.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadedmetadata_event)
     */
    onloadedmetadata: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when Internet Explorer begins looking for media data.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loadstart_event)
     */
    onloadstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lostpointercapture_event) */
    onlostpointercapture: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user clicks the object with either mouse button.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mousedown_event)
     */
    onmousedown: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mouseenter_event) */
    onmouseenter: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mouseleave_event) */
    onmouseleave: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user moves the mouse over the object.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mousemove_event)
     */
    onmousemove: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user moves the mouse pointer outside the boundaries of the object.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mouseout_event)
     */
    onmouseout: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user moves the mouse pointer into the object.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mouseover_event)
     */
    onmouseover: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user releases a mouse button while the mouse is over the object.
     * @param ev The mouse event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/mouseup_event)
     */
    onmouseup: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    onmozfullscreenchange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    onmozfullscreenerror: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/paste_event) */
    onpaste: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when playback is paused.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/pause_event)
     */
    onpause: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the play method is requested.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/play_event)
     */
    onplay: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the audio or video has started playing.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/playing_event)
     */
    onplaying: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointercancel_event) */
    onpointercancel: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerdown_event) */
    onpointerdown: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerenter_event) */
    onpointerenter: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerleave_event) */
    onpointerleave: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointermove_event) */
    onpointermove: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerout_event) */
    onpointerout: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerover_event) */
    onpointerover: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/pointerup_event) */
    onpointerup: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs to indicate progress while downloading media data.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/progress_event)
     */
    onprogress: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the playback rate is increased or decreased.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/ratechange_event)
     */
    onratechange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user resets a form.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/reset_event)
     */
    onreset: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/resize_event) */
    onresize: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the user repositions the scroll box in the scroll bar on the object.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/scroll_event)
     */
    onscroll: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/scrollend_event) */
    onscrollend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/securitypolicyviolation_event) */
    onsecuritypolicyviolation: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the seek operation ends.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seeked_event)
     */
    onseeked: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the current playback position is moved.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seeking_event)
     */
    onseeking: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Fires when the current selection changes.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/select_event)
     */
    onselect: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/selectionchange_event) */
    onselectionchange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/selectstart_event) */
    onselectstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/slotchange_event) */
    onslotchange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the download has stopped.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/stalled_event)
     */
    onstalled: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/submit_event) */
    onsubmit: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs if the load operation has been intentionally halted.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/suspend_event)
     */
    onsuspend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs to indicate the current playback position.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/timeupdate_event)
     */
    ontimeupdate: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDetailsElement/toggle_event) */
    ontoggle: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/transitioncancel_event) */
    ontransitioncancel: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/transitionend_event) */
    ontransitionend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/transitionrun_event) */
    ontransitionrun: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/transitionstart_event) */
    ontransitionstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when the volume is changed, or playback is muted or unmuted.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/volumechange_event)
     */
    onvolumechange: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * Occurs when playback stops because the next frame of a video resource is not available.
     * @param ev The event.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/waiting_event)
     */
    onwaiting: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `onanimationend`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationend_event)
     */
    onwebkitanimationend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `onanimationiteration`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationiteration_event)
     */
    onwebkitanimationiteration: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `onanimationstart`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/animationstart_event)
     */
    onwebkitanimationstart: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `ontransitionend`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/transitionend_event)
     */
    onwebkittransitionend: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/wheel_event) */
    onwheel: ((this: GlobalEventHandlers, ev: Event) => any) | null;
    addEventListener<K extends keyof GlobalEventHandlersEventMap>(type: K, listener: (this: GlobalEventHandlers, ev: GlobalEventHandlersEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof GlobalEventHandlersEventMap>(type: K, listener: (this: GlobalEventHandlers, ev: GlobalEventHandlersEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

interface GlobalPrivacyControl {
    readonly globalPrivacyControl: boolean;
}

interface GlobalProcessScriptLoader {
    readonly initialProcessData: any;
    readonly sharedData: MozWritableSharedMap;
}

interface Grid {
    readonly areas: GridArea[];
    readonly cols: GridDimension;
    readonly rows: GridDimension;
}

declare var Grid: {
    prototype: Grid;
    new(): Grid;
    isInstance(obj): obj is Grid;
};

interface GridArea {
    readonly columnEnd: number;
    readonly columnStart: number;
    readonly name: string;
    readonly rowEnd: number;
    readonly rowStart: number;
    readonly type: GridDeclaration;
}

declare var GridArea: {
    prototype: GridArea;
    new(): GridArea;
    isInstance(obj): obj is GridArea;
};

interface GridDimension {
    readonly lines: GridLines;
    readonly tracks: GridTracks;
}

declare var GridDimension: {
    prototype: GridDimension;
    new(): GridDimension;
    isInstance(obj): obj is GridDimension;
};

interface GridLine {
    readonly breadth: number;
    readonly names: string[];
    readonly negativeNumber: number;
    readonly number: number;
    readonly start: number;
    readonly type: GridDeclaration;
}

declare var GridLine: {
    prototype: GridLine;
    new(): GridLine;
    isInstance(obj): obj is GridLine;
};

interface GridLines {
    readonly length: number;
    item(index: number): GridLine | null;
    [index: number]: GridLine;
}

declare var GridLines: {
    prototype: GridLines;
    new(): GridLines;
    isInstance(obj): obj is GridLines;
};

interface GridTrack {
    readonly breadth: number;
    readonly start: number;
    readonly state: GridTrackState;
    readonly type: GridDeclaration;
}

declare var GridTrack: {
    prototype: GridTrack;
    new(): GridTrack;
    isInstance(obj): obj is GridTrack;
};

interface GridTracks {
    readonly length: number;
    item(index: number): GridTrack | null;
    [index: number]: GridTrack;
}

declare var GridTracks: {
    prototype: GridTracks;
    new(): GridTracks;
    isInstance(obj): obj is GridTracks;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAllCollection) */
interface HTMLAllCollection {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAllCollection/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAllCollection/item) */
    item(nameOrIndex?: string): HTMLCollection | Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAllCollection/namedItem) */
    namedItem(name: string): HTMLCollection | Element | null;
    [index: number]: Element;
}

declare var HTMLAllCollection: {
    prototype: HTMLAllCollection;
    new(): HTMLAllCollection;
    isInstance(obj): obj is HTMLAllCollection;
};

/**
 * Hyperlink elements and provides special properties and methods (beyond those of the regular HTMLElement object interface that they inherit from) for manipulating the layout and presentation of such elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement)
 */
interface HTMLAnchorElement extends HTMLElement, HTMLHyperlinkElementUtils {
    /**
     * Sets or retrieves the character set used to encode the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/charset)
     */
    charset: string;
    /**
     * Sets or retrieves the coordinates of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/coords)
     */
    coords: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/download) */
    download: string;
    /**
     * Sets or retrieves the language code of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/hreflang)
     */
    hreflang: string;
    /**
     * Sets or retrieves the shape of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/name)
     */
    name: string;
    ping: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/referrerPolicy) */
    referrerPolicy: string;
    /**
     * Sets or retrieves the relationship between the object and the destination of the link.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/rel)
     */
    rel: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/relList) */
    readonly relList: DOMTokenList;
    /**
     * Sets or retrieves the relationship between the object and the destination of the link.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/rev)
     */
    rev: string;
    /**
     * Sets or retrieves the shape of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/shape)
     */
    shape: string;
    /**
     * Sets or retrieves the window or frame at which to target content.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/target)
     */
    target: string;
    /**
     * Retrieves or sets the text of the object as a string.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/text)
     */
    text: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/type) */
    type: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLAnchorElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLAnchorElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLAnchorElement: {
    prototype: HTMLAnchorElement;
    new(): HTMLAnchorElement;
    isInstance(obj): obj is HTMLAnchorElement;
};

/**
 * Provides special properties and methods (beyond those of the regular object HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of <area> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement)
 */
interface HTMLAreaElement extends HTMLElement, HTMLHyperlinkElementUtils {
    /**
     * Sets or retrieves a text alternative to the graphic.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/alt)
     */
    alt: string;
    /**
     * Sets or retrieves the coordinates of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/coords)
     */
    coords: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/download) */
    download: string;
    /**
     * Sets or gets whether clicks in this region cause action.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/noHref)
     */
    noHref: boolean;
    ping: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/referrerPolicy) */
    referrerPolicy: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/rel) */
    rel: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/relList) */
    readonly relList: DOMTokenList;
    /**
     * Sets or retrieves the shape of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/shape)
     */
    shape: string;
    /**
     * Sets or retrieves the window or frame at which to target content.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAreaElement/target)
     */
    target: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLAreaElement: {
    prototype: HTMLAreaElement;
    new(): HTMLAreaElement;
    isInstance(obj): obj is HTMLAreaElement;
};

/**
 * Provides access to the properties of <audio> elements, as well as methods to manipulate them. It derives from the HTMLMediaElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAudioElement)
 */
interface HTMLAudioElement extends HTMLMediaElement {
    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLAudioElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLAudioElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLAudioElement: {
    prototype: HTMLAudioElement;
    new(): HTMLAudioElement;
    isInstance(obj): obj is HTMLAudioElement;
};

/**
 * A HTML line break element (<br>). It inherits from HTMLElement.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBRElement)
 */
interface HTMLBRElement extends HTMLElement {
    /**
     * Sets or retrieves the side on which floating objects are not to be positioned when any IHTMLBlockElement is inserted into the document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBRElement/clear)
     */
    clear: string;
    readonly isPaddingForEmptyEditor: boolean;
    readonly isPaddingForEmptyLastLine: boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLBRElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLBRElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLBRElement: {
    prototype: HTMLBRElement;
    new(): HTMLBRElement;
    isInstance(obj): obj is HTMLBRElement;
};

/**
 * Contains the base URI for a document. This object inherits all of the properties and methods as described in the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBaseElement)
 */
interface HTMLBaseElement extends HTMLElement {
    /**
     * Gets or sets the baseline URL on which relative links are based.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBaseElement/href)
     */
    href: string;
    /**
     * Sets or retrieves the window or frame at which to target content.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBaseElement/target)
     */
    target: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLBaseElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLBaseElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLBaseElement: {
    prototype: HTMLBaseElement;
    new(): HTMLBaseElement;
    isInstance(obj): obj is HTMLBaseElement;
};

interface HTMLBodyElementEventMap extends HTMLElementEventMap, WindowEventHandlersEventMap {
}

/**
 * Provides special properties (beyond those inherited from the regular HTMLElement interface) for manipulating <body> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement)
 */
interface HTMLBodyElement extends HTMLElement, WindowEventHandlers {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/aLink)
     */
    aLink: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/background)
     */
    background: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/bgColor)
     */
    bgColor: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/link)
     */
    link: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/text)
     */
    text: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLBodyElement/vLink)
     */
    vLink: string;
    addEventListener<K extends keyof HTMLBodyElementEventMap>(type: K, listener: (this: HTMLBodyElement, ev: HTMLBodyElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLBodyElementEventMap>(type: K, listener: (this: HTMLBodyElement, ev: HTMLBodyElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLBodyElement: {
    prototype: HTMLBodyElement;
    new(): HTMLBodyElement;
    isInstance(obj): obj is HTMLBodyElement;
};

/**
 * Provides properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <button> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement)
 */
interface HTMLButtonElement extends HTMLElement, InvokerElement, PopoverInvokerElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/disabled) */
    disabled: boolean;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/form)
     */
    readonly form: HTMLFormElement | null;
    /**
     * Overrides the action attribute (where the data on a form is sent) on the parent form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formAction)
     */
    formAction: string;
    /**
     * Used to override the encoding (formEnctype attribute) specified on the form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formEnctype)
     */
    formEnctype: string;
    /**
     * Overrides the submit method attribute previously specified on a form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formMethod)
     */
    formMethod: string;
    /**
     * Overrides any validation or required attributes on a form or form elements to allow it to be submitted without validation. This can be used to create a "save draft"-type submit option.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formNoValidate)
     */
    formNoValidate: boolean;
    /**
     * Overrides the target attribute on a form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/formTarget)
     */
    formTarget: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/labels) */
    readonly labels: NodeList;
    /**
     * Sets or retrieves the name of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/name)
     */
    name: string;
    /**
     * Gets the classification and default behavior of the button.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/type)
     */
    type: string;
    /**
     * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/validationMessage)
     */
    readonly validationMessage: string;
    /**
     * Returns a  ValidityState object that represents the validity states of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/validity)
     */
    readonly validity: ValidityState;
    /**
     * Sets or retrieves the default or selected value of the control.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/value)
     */
    value: string;
    /**
     * Returns whether an element will successfully validate based on forms validation rules and constraints.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/willValidate)
     */
    readonly willValidate: boolean;
    /** Returns whether a form will validate when it is submitted, without having to submit it. */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/reportValidity) */
    reportValidity(): boolean;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     */
    setCustomValidity(error: string): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLButtonElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLButtonElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLButtonElement: {
    prototype: HTMLButtonElement;
    new(): HTMLButtonElement;
    isInstance(obj): obj is HTMLButtonElement;
};

/**
 * Provides properties and methods for manipulating the layout and presentation of <canvas> elements. The HTMLCanvasElement interface also inherits the properties and methods of the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement)
 */
interface HTMLCanvasElement extends HTMLElement {
    /**
     * Gets or sets the height of a canvas element on a document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/height)
     */
    height: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/mozOpaque)
     */
    mozOpaque: boolean;
    mozPrintCallback: PrintCallback | null;
    /**
     * Gets or sets the width of a canvas element on a document.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/width)
     */
    width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/captureStream) */
    captureStream(frameRate?: number): CanvasCaptureMediaStream;
    /**
     * Returns an object that provides methods and properties for drawing and manipulating images and graphics on a canvas element in a document. A context object includes information about colors, line widths, fonts, and other graphic parameters that can be drawn on a canvas.
     * @param contextId The identifier (ID) of the type of canvas to create. Internet Explorer 9 and Internet Explorer 10 support only a 2-D context using canvas.getContext("2d"); IE11 Preview also supports 3-D or WebGL context using canvas.getContext("experimental-webgl");
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/getContext)
     */
    getContext(contextId: string, contextOptions?: any): nsISupports | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/toBlob) */
    toBlob(callback: BlobCallback, type?: string, encoderOptions?: any): void;
    /**
     * Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.
     * @param type The standard MIME type for the image format to return. If you do not specify this parameter, the default value is a PNG format image.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/toDataURL)
     */
    toDataURL(type?: string, encoderOptions?: any): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/transferControlToOffscreen) */
    transferControlToOffscreen(): OffscreenCanvas;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLCanvasElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLCanvasElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLCanvasElement: {
    prototype: HTMLCanvasElement;
    new(): HTMLCanvasElement;
    isInstance(obj): obj is HTMLCanvasElement;
};

/**
 * A generic collection (array-like object similar to arguments) of elements (in document order) and offers methods and properties for selecting from the list.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCollection)
 */
interface HTMLCollectionBase {
    /**
     * Sets or retrieves the number of objects in a collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCollection/length)
     */
    readonly length: number;
    /**
     * Retrieves an object from various collections.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCollection/item)
     */
    item(index: number): Element | null;
    [index: number]: Element;
}

interface HTMLCollection extends HTMLCollectionBase {
    /**
     * Retrieves a select object or an object from an options collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLCollection/namedItem)
     */
    namedItem(name: string): Element | null;
}

declare var HTMLCollection: {
    prototype: HTMLCollection;
    new(): HTMLCollection;
    isInstance(obj): obj is HTMLCollection;
};

/**
 * Provides special properties (beyond those of the regular HTMLElement interface it also has available to it by inheritance) for manipulating definition list (<dl>) elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDListElement)
 */
interface HTMLDListElement extends HTMLElement {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDListElement/compact)
     */
    compact: boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDListElement: {
    prototype: HTMLDListElement;
    new(): HTMLDListElement;
    isInstance(obj): obj is HTMLDListElement;
};

/**
 * Provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <data> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDataElement)
 */
interface HTMLDataElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDataElement/value) */
    value: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDataElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDataElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDataElement: {
    prototype: HTMLDataElement;
    new(): HTMLDataElement;
    isInstance(obj): obj is HTMLDataElement;
};

/**
 * Provides special properties (beyond the HTMLElement object interface it also has available to it by inheritance) to manipulate <datalist> elements and their content.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDataListElement)
 */
interface HTMLDataListElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDataListElement/options) */
    readonly options: HTMLCollection;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDataListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDataListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDataListElement: {
    prototype: HTMLDataListElement;
    new(): HTMLDataListElement;
    isInstance(obj): obj is HTMLDataListElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDetailsElement) */
interface HTMLDetailsElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDetailsElement/open) */
    open: boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDetailsElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDetailsElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDetailsElement: {
    prototype: HTMLDetailsElement;
    new(): HTMLDetailsElement;
    isInstance(obj): obj is HTMLDetailsElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement) */
interface HTMLDialogElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/open) */
    open: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/returnValue) */
    returnValue: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/close) */
    close(returnValue?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/show) */
    show(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDialogElement/showModal) */
    showModal(): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDialogElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDialogElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDialogElement: {
    prototype: HTMLDialogElement;
    new(): HTMLDialogElement;
    isInstance(obj): obj is HTMLDialogElement;
};

/** @deprecated */
interface HTMLDirectoryElement extends HTMLElement {
    /** @deprecated */
    compact: boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDirectoryElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDirectoryElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLDirectoryElement: {
    prototype: HTMLDirectoryElement;
    new(): HTMLDirectoryElement;
    isInstance(obj): obj is HTMLDirectoryElement;
};

/**
 * Provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <div> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDivElement)
 */
interface HTMLDivElement extends HTMLElement {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDivElement/align)
     */
    align: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDivElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLDivElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLDivElement: {
    prototype: HTMLDivElement;
    new(): HTMLDivElement;
    isInstance(obj): obj is HTMLDivElement;
};

/**
 * The HTMLDocument property of Window objects is an alias that browsers expose for the Document interface object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLDocument)
 */
interface HTMLDocument extends Document {
    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: HTMLDocument, ev: DocumentEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: HTMLDocument, ev: DocumentEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [name: string]: any;
}

declare var HTMLDocument: {
    prototype: HTMLDocument;
    new(): HTMLDocument;
    isInstance(obj): obj is HTMLDocument;
};

interface HTMLElementEventMap extends ElementEventMap, GlobalEventHandlersEventMap, OnErrorEventHandlerForNodesEventMap, TouchEventHandlersEventMap {
}

/**
 * Any HTML element. Some elements directly implement this interface, while others implement it via an interface that inherits it.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement)
 */
interface HTMLElement extends Element, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement, OnErrorEventHandlerForNodes, TouchEventHandlers {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/accessKey) */
    accessKey: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/accessKeyLabel) */
    readonly accessKeyLabel: string;
    autocapitalize: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/contentEditable) */
    contentEditable: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/dir) */
    dir: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/draggable) */
    draggable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/enterKeyHint) */
    enterKeyHint: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/hidden) */
    hidden: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/inert) */
    inert: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/innerText) */
    innerText: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/inputMode) */
    inputMode: string;
    readonly internals: ElementInternals | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/isContentEditable) */
    readonly isContentEditable: boolean;
    readonly isFormAssociatedCustomElements: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lang) */
    lang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/nonce) */
    nonce: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetHeight) */
    readonly offsetHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetLeft) */
    readonly offsetLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetParent) */
    readonly offsetParent: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetTop) */
    readonly offsetTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/offsetWidth) */
    readonly offsetWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/outerText) */
    outerText: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/popover) */
    popover: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/spellcheck) */
    spellcheck: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/title) */
    title: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/translate) */
    translate: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/attachInternals) */
    attachInternals(): ElementInternals;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/click) */
    click(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/hidePopover) */
    hidePopover(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/showPopover) */
    showPopover(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/togglePopover) */
    togglePopover(force?: boolean): boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLElement: {
    prototype: HTMLElement;
    new(): HTMLElement;
    isInstance(obj): obj is HTMLElement;
};

/**
 * Provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <embed> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLEmbedElement)
 */
interface HTMLEmbedElement extends HTMLElement, MozFrameLoaderOwner, MozImageLoadingContent, MozObjectLoadingContent {
    /** @deprecated */
    align: string;
    /** Sets or retrieves the height of the object. */
    height: string;
    /**
     * Sets or retrieves the name of the object.
     * @deprecated
     */
    name: string;
    /** Sets or retrieves a URL to be loaded by the object. */
    src: string;
    type: string;
    /** Sets or retrieves the width of the object. */
    width: string;
    getSVGDocument(): Document | null;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLEmbedElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLEmbedElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLEmbedElement: {
    prototype: HTMLEmbedElement;
    new(): HTMLEmbedElement;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
    readonly TYPE_LOADING: 0;
    readonly TYPE_IMAGE: 1;
    readonly TYPE_FALLBACK: 2;
    readonly TYPE_FAKE_PLUGIN: 3;
    readonly TYPE_DOCUMENT: 4;
    readonly TYPE_NULL: 5;
    isInstance(obj): obj is HTMLEmbedElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFencedFrameElement) */
interface HTMLFencedFrameElement {
}

declare var HTMLFencedFrameElement: {
    prototype: HTMLFencedFrameElement;
    new(): HTMLFencedFrameElement;
    isInstance(obj): obj is HTMLFencedFrameElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of <fieldset> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement)
 */
interface HTMLFieldSetElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/disabled) */
    disabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/elements) */
    readonly elements: HTMLCollection;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/form)
     */
    readonly form: HTMLFormElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/type) */
    readonly type: string;
    /**
     * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validationMessage)
     */
    readonly validationMessage: string;
    /**
     * Returns a  ValidityState object that represents the validity states of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/validity)
     */
    readonly validity: ValidityState;
    /**
     * Returns whether an element will successfully validate based on forms validation rules and constraints.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/willValidate)
     */
    readonly willValidate: boolean;
    /** Returns whether a form will validate when it is submitted, without having to submit it. */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFieldSetElement/reportValidity) */
    reportValidity(): boolean;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     */
    setCustomValidity(error: string): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFieldSetElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFieldSetElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLFieldSetElement: {
    prototype: HTMLFieldSetElement;
    new(): HTMLFieldSetElement;
    isInstance(obj): obj is HTMLFieldSetElement;
};

/**
 * Implements the document object model (DOM) representation of the font element. The HTML Font Element <font> defines the font size, font face and color of text.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFontElement)
 */
interface HTMLFontElement extends HTMLElement {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFontElement/color)
     */
    color: string;
    /**
     * Sets or retrieves the current typeface family.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFontElement/face)
     */
    face: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFontElement/size)
     */
    size: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFontElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFontElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLFontElement: {
    prototype: HTMLFontElement;
    new(): HTMLFontElement;
    isInstance(obj): obj is HTMLFontElement;
};

/**
 * A collection of HTML form control elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormControlsCollection)
 */
interface HTMLFormControlsCollection extends HTMLCollectionBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormControlsCollection/namedItem) */
    namedItem(name: string): RadioNodeList | Element | null;
}

declare var HTMLFormControlsCollection: {
    prototype: HTMLFormControlsCollection;
    new(): HTMLFormControlsCollection;
    isInstance(obj): obj is HTMLFormControlsCollection;
};

/**
 * A <form> element in the DOM; it allows access to and in some cases modification of aspects of the form, as well as access to its component elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement)
 */
interface HTMLFormElement extends HTMLElement {
    /**
     * Sets or retrieves a list of character encodings for input data that must be accepted by the server processing the form.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/acceptCharset)
     */
    acceptCharset: string;
    /**
     * Sets or retrieves the URL to which the form content is sent for processing.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/action)
     */
    action: string;
    /**
     * Specifies whether autocomplete is applied to an editable text field.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/autocomplete)
     */
    autocomplete: string;
    /**
     * Retrieves a collection, in source order, of all controls in a given form.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/elements)
     */
    readonly elements: HTMLFormControlsCollection;
    /**
     * Sets or retrieves the MIME encoding for the form.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/encoding)
     */
    encoding: string;
    /**
     * Sets or retrieves the encoding type for the form.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/enctype)
     */
    enctype: string;
    /**
     * Sets or retrieves the number of objects in a collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/length)
     */
    readonly length: number;
    /**
     * Sets or retrieves how to send the form data to the server.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/method)
     */
    method: string;
    /**
     * Sets or retrieves the name of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/name)
     */
    name: string;
    /**
     * Designates a form that is not validated when submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/noValidate)
     */
    noValidate: boolean;
    rel: string;
    readonly relList: DOMTokenList;
    /**
     * Sets or retrieves the window or frame at which to target content.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/target)
     */
    target: string;
    /**
     * Returns whether a form will validate when it is submitted, without having to submit it.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/checkValidity)
     */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/reportValidity) */
    reportValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/requestSubmit) */
    requestSubmit(submitter?: HTMLElement | null): void;
    /**
     * Fires when the user resets a form.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/reset)
     */
    reset(): void;
    /**
     * Fires when a FORM is about to be submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFormElement/submit)
     */
    submit(): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFormElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFormElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: Element;
}

declare var HTMLFormElement: {
    prototype: HTMLFormElement;
    new(): HTMLFormElement;
    isInstance(obj): obj is HTMLFormElement;
};

/**
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement)
 */
interface HTMLFrameElement extends HTMLElement, MozFrameLoaderOwner {
    /**
     * Retrieves the document object of the page or frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/contentDocument)
     */
    readonly contentDocument: Document | null;
    /**
     * Retrieves the object of the specified.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/contentWindow)
     */
    readonly contentWindow: WindowProxy | null;
    /**
     * Sets or retrieves whether to display a border for the frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/frameBorder)
     */
    frameBorder: string;
    /**
     * Sets or retrieves a URI to a long description of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/longDesc)
     */
    longDesc: string;
    /**
     * Sets or retrieves the top and bottom margin heights before displaying the text in a frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/marginHeight)
     */
    marginHeight: string;
    /**
     * Sets or retrieves the left and right margin widths before displaying the text in a frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/marginWidth)
     */
    marginWidth: string;
    /**
     * Sets or retrieves the frame name.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/name)
     */
    name: string;
    /**
     * Sets or retrieves whether the user can resize the frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/noResize)
     */
    noResize: boolean;
    /**
     * Sets or retrieves whether the frame can be scrolled.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/scrolling)
     */
    scrolling: string;
    /**
     * Sets or retrieves a URL to be loaded by the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameElement/src)
     */
    src: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFrameElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLFrameElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLFrameElement: {
    prototype: HTMLFrameElement;
    new(): HTMLFrameElement;
    isInstance(obj): obj is HTMLFrameElement;
};

interface HTMLFrameSetElementEventMap extends HTMLElementEventMap, WindowEventHandlersEventMap {
}

/**
 * Provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating <frameset> elements.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLFrameSetElement)
 */
interface HTMLFrameSetElement extends HTMLElement, WindowEventHandlers {
    /**
     * Sets or retrieves the frame widths of the object.
     * @deprecated
     */
    cols: string;
    /**
     * Sets or retrieves the frame heights of the object.
     * @deprecated
     */
    rows: string;
    addEventListener<K extends keyof HTMLFrameSetElementEventMap>(type: K, listener: (this: HTMLFrameSetElement, ev: HTMLFrameSetElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLFrameSetElementEventMap>(type: K, listener: (this: HTMLFrameSetElement, ev: HTMLFrameSetElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLFrameSetElement: {
    prototype: HTMLFrameSetElement;
    new(): HTMLFrameSetElement;
    isInstance(obj): obj is HTMLFrameSetElement;
};

/**
 * Provides special properties (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating <hr> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHRElement)
 */
interface HTMLHRElement extends HTMLElement {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     */
    align: string;
    /** @deprecated */
    color: string;
    /**
     * Sets or retrieves whether the horizontal rule is drawn with 3-D shading.
     * @deprecated
     */
    noShade: boolean;
    /** @deprecated */
    size: string;
    /**
     * Sets or retrieves the width of the object.
     * @deprecated
     */
    width: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHRElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHRElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLHRElement: {
    prototype: HTMLHRElement;
    new(): HTMLHRElement;
    isInstance(obj): obj is HTMLHRElement;
};

/**
 * Contains the descriptive information, or metadata, for a document. This object inherits all of the properties and methods described in the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHeadElement)
 */
interface HTMLHeadElement extends HTMLElement {
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHeadElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHeadElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLHeadElement: {
    prototype: HTMLHeadElement;
    new(): HTMLHeadElement;
    isInstance(obj): obj is HTMLHeadElement;
};

/**
 * The different heading elements. It inherits methods and properties from the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHeadingElement)
 */
interface HTMLHeadingElement extends HTMLElement {
    /**
     * Sets or retrieves a value that indicates the table alignment.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHeadingElement/align)
     */
    align: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHeadingElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHeadingElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLHeadingElement: {
    prototype: HTMLHeadingElement;
    new(): HTMLHeadingElement;
    isInstance(obj): obj is HTMLHeadingElement;
};

/**
 * Serves as the root node for a given HTML document. This object inherits the properties and methods described in the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHtmlElement)
 */
interface HTMLHtmlElement extends HTMLElement {
    /**
     * Sets or retrieves the DTD version that governs the current document.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLHtmlElement/version)
     */
    version: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHtmlElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLHtmlElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLHtmlElement: {
    prototype: HTMLHtmlElement;
    new(): HTMLHtmlElement;
    isInstance(obj): obj is HTMLHtmlElement;
};

interface HTMLHyperlinkElementUtils {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/hash) */
    hash: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/host) */
    host: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/hostname) */
    hostname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/href) */
    href: string;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/password) */
    password: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/pathname) */
    pathname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/port) */
    port: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/protocol) */
    protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/search) */
    search: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLAnchorElement/username) */
    username: string;
}

/**
 * Provides special properties and methods (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of inline frame elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement)
 */
interface HTMLIFrameElement extends HTMLElement, MozFrameLoaderOwner {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/align)
     */
    align: string;
    allow: string;
    allowFullscreen: boolean;
    /**
     * Retrieves the document object of the page or frame.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/contentDocument)
     */
    readonly contentDocument: Document | null;
    /**
     * Retrieves the object of the specified.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/contentWindow)
     */
    readonly contentWindow: WindowProxy | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/featurePolicy) */
    readonly featurePolicy: FeaturePolicy;
    /**
     * Sets or retrieves whether to display a border for the frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/frameBorder)
     */
    frameBorder: string;
    /**
     * Sets or retrieves the height of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/height)
     */
    height: string;
    loading: string;
    /**
     * Sets or retrieves a URI to a long description of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/longDesc)
     */
    longDesc: string;
    /**
     * Sets or retrieves the top and bottom margin heights before displaying the text in a frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/marginHeight)
     */
    marginHeight: string;
    /**
     * Sets or retrieves the left and right margin widths before displaying the text in a frame.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/marginWidth)
     */
    marginWidth: string;
    /**
     * Sets or retrieves the frame name.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/name)
     */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/referrerPolicy) */
    referrerPolicy: string;
    readonly sandbox: DOMTokenList;
    /**
     * Sets or retrieves whether the frame can be scrolled.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/scrolling)
     */
    scrolling: string;
    /**
     * Sets or retrieves a URL to be loaded by the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/src)
     */
    src: string;
    /**
     * Sets or retrives the content of the page that is to contain.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/srcdoc)
     */
    srcdoc: string;
    /**
     * Sets or retrieves the width of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLIFrameElement/width)
     */
    width: string;
    getSVGDocument(): Document | null;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLIFrameElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLIFrameElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLIFrameElement: {
    prototype: HTMLIFrameElement;
    new(): HTMLIFrameElement;
    isInstance(obj): obj is HTMLIFrameElement;
};

/**
 * Provides special properties and methods for manipulating <img> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement)
 */
interface HTMLImageElement extends HTMLElement, MozImageLoadingContent {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/align)
     */
    align: string;
    /**
     * Sets or retrieves a text alternative to the graphic.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/alt)
     */
    alt: string;
    /**
     * Specifies the properties of a border drawn around an object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/border)
     */
    border: string;
    /**
     * Retrieves whether the object is fully loaded.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/complete)
     */
    readonly complete: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/crossOrigin) */
    crossOrigin: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/currentSrc) */
    readonly currentSrc: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/decoding) */
    decoding: string;
    /**
     * Sets or retrieves the height of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/height)
     */
    height: number;
    /**
     * Sets or retrieves the width of the border to draw around the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/hspace)
     */
    hspace: number;
    /**
     * Sets or retrieves whether the image is a server-side image map.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/isMap)
     */
    isMap: boolean;
    /**
     * Sets or retrieves the policy for loading image elements that are outside the viewport.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/loading)
     */
    loading: string;
    /**
     * Sets or retrieves a Uniform Resource Identifier (URI) to a long description of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/longDesc)
     */
    longDesc: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/lowsrc)
     */
    lowsrc: string;
    /**
     * Sets or retrieves the name of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/name)
     */
    name: string;
    /**
     * The original height of the image resource before sizing.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/naturalHeight)
     */
    readonly naturalHeight: number;
    /**
     * The original width of the image resource before sizing.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/naturalWidth)
     */
    readonly naturalWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/referrerPolicy) */
    referrerPolicy: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/sizes) */
    sizes: string;
    /**
     * The address or URL of the a media resource that is to be considered.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/src)
     */
    src: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/srcset) */
    srcset: string;
    /**
     * Sets or retrieves the URL, often with a bookmark extension (#name), to use as a client-side image map.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/useMap)
     */
    useMap: string;
    /**
     * Sets or retrieves the vertical margin for the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/vspace)
     */
    vspace: number;
    /**
     * Sets or retrieves the width of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/width)
     */
    width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/x) */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/y) */
    readonly y: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLImageElement/decode) */
    decode(): Promise<void>;
    recognizeCurrentImageText(): Promise<ImageText[]>;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLImageElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLImageElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLImageElement: {
    prototype: HTMLImageElement;
    new(): HTMLImageElement;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
    isInstance(obj): obj is HTMLImageElement;
};

/**
 * Provides special properties and methods for manipulating the options, layout, and presentation of <input> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement)
 */
interface HTMLInputElement extends HTMLElement, InvokerElement, MozEditableElement, MozImageLoadingContent, PopoverInvokerElement {
    /** Sets or retrieves a comma-separated list of content types. */
    accept: string;
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     */
    align: string;
    /** Sets or retrieves a text alternative to the graphic. */
    alt: string;
    /**
     * Specifies whether autocomplete is applied to an editable text field.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/autocomplete)
     */
    autocomplete: string;
    capture: string;
    /** Sets or retrieves the state of the check box or radio button. */
    checked: boolean;
    readonly controllers: XULControllers | null;
    readonly dateTimeBoxElement: Element | null;
    /** Sets or retrieves the state of the check box or radio button. */
    defaultChecked: boolean;
    /** Sets or retrieves the initial contents of the object. */
    defaultValue: string;
    dirName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/disabled) */
    disabled: boolean;
    /**
     * Returns a FileList object on a file type input object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/files)
     */
    files: FileList | null;
    /** Retrieves a reference to the form that the object is embedded in. */
    readonly form: HTMLFormElement | null;
    /**
     * Overrides the action attribute (where the data on a form is sent) on the parent form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formAction)
     */
    formAction: string;
    /**
     * Used to override the encoding (formEnctype attribute) specified on the form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formEnctype)
     */
    formEnctype: string;
    /**
     * Overrides the submit method attribute previously specified on a form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formMethod)
     */
    formMethod: string;
    /**
     * Overrides any validation or required attributes on a form or form elements to allow it to be submitted without validation. This can be used to create a "save draft"-type submit option.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formNoValidate)
     */
    formNoValidate: boolean;
    /**
     * Overrides the target attribute on a form element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/formTarget)
     */
    formTarget: string;
    readonly hasBeenTypePassword: boolean;
    /**
     * Sets or retrieves the height of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/height)
     */
    height: number;
    indeterminate: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/labels) */
    readonly labels: NodeList | null;
    readonly lastInteractiveValue: string;
    /**
     * Specifies the ID of a pre-defined datalist of options for an input element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/list)
     */
    readonly list: HTMLDataListElement | null;
    /** Defines the maximum acceptable value for an input element with type="number".When used with the min and step attributes, lets you control the range and increment (such as only even numbers) that the user can enter into an input field. */
    max: string;
    /** Sets or retrieves the maximum number of characters that the user can enter in a text control. */
    maxLength: number;
    /** Defines the minimum acceptable value for an input element with type="number". When used with the max and step attributes, lets you control the range and increment (such as even numbers only) that the user can enter into an input field. */
    min: string;
    minLength: number;
    /**
     * Sets or retrieves the Boolean value indicating whether multiple items can be selected from a list.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/multiple)
     */
    multiple: boolean;
    /** Sets or retrieves the name of the object. */
    name: string;
    /**
     * Gets or sets a string containing a regular expression that the user's input must match.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/pattern)
     */
    pattern: string;
    /**
     * Gets or sets a text string that is displayed in an input field as a hint or prompt to users as the format or type of information they need to enter.The text appears in an input field until the user puts focus on the field.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/placeholder)
     */
    placeholder: string;
    previewValue: string;
    readOnly: boolean;
    /**
     * When present, marks an element that can't be submitted without a value.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/required)
     */
    required: boolean;
    revealPassword: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/selectionDirection) */
    selectionDirection: string | null;
    /** Gets or sets the end position or offset of a text selection. */
    selectionEnd: number | null;
    /** Gets or sets the starting position or offset of a text selection. */
    selectionStart: number | null;
    size: number;
    /** The address or URL of the a media resource that is to be considered. */
    src: string;
    /** Defines an increment or jump between values that you want to allow the user to enter. When used with the max and min attributes, lets you control the range and increment (for example, allow only even numbers) that the user can enter into an input field. */
    step: string;
    readonly textLength: number;
    /** Returns the content type of the object. */
    type: string;
    /**
     * Sets or retrieves the URL, often with a bookmark extension (#name), to use as a client-side image map.
     * @deprecated
     */
    useMap: string;
    /**
     * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/validationMessage)
     */
    readonly validationMessage: string;
    /**
     * Returns a  ValidityState object that represents the validity states of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/validity)
     */
    readonly validity: ValidityState;
    /** Returns the value of the data at the cursor's current position. */
    value: string;
    /** Returns a Date object representing the form control's value, if applicable; otherwise, returns null. Can be set, to change the value. Throws an "InvalidStateError" DOMException if the control isn't date- or time-based. */
    valueAsDate: any;
    /** Returns the input field value as a number. */
    valueAsNumber: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/webkitEntries) */
    readonly webkitEntries: FileSystemEntry[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/webkitdirectory) */
    webkitdirectory: boolean;
    /**
     * Sets or retrieves the width of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/width)
     */
    width: number;
    /**
     * Returns whether an element will successfully validate based on forms validation rules and constraints.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/willValidate)
     */
    readonly willValidate: boolean;
    /**
     * Returns whether a form will validate when it is submitted, without having to submit it.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/checkValidity)
     */
    checkValidity(): boolean;
    closeDateTimePicker(): void;
    getAutocompleteInfo(): AutocompleteInfo | null;
    getDateTimeInputBoxValue(): DateTimeValue;
    getFilesAndDirectories(): Promise<(File | Directory)[]>;
    getMaximum(): number;
    getMinimum(): number;
    getStep(): number;
    getStepBase(): number;
    mozGetFileNameArray(): string[];
    mozIsTextField(aExcludePassword: boolean): boolean;
    mozSetDirectory(directoryPath: string): void;
    mozSetDndFilesAndDirectories(list: (File | Directory)[]): void;
    mozSetFileArray(files: File[]): void;
    mozSetFileNameArray(fileNames: string[]): void;
    openDateTimePicker(initialValue?: DateTimeValue): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/reportValidity) */
    reportValidity(): boolean;
    /**
     * Makes the selection equal to the current object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/select)
     */
    select(): void;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/setCustomValidity)
     */
    setCustomValidity(error: string): void;
    setFocusState(aIsFocused: boolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/setRangeText) */
    setRangeText(replacement: string): void;
    setRangeText(replacement: string, start: number, end: number, selectionMode?: SelectionMode): void;
    /**
     * Sets the start and end positions of a selection in a text field.
     * @param start The offset into the text field for the start of the selection.
     * @param end The offset into the text field for the end of the selection.
     * @param direction The direction in which the selection is performed.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/setSelectionRange)
     */
    setSelectionRange(start: number, end: number, direction?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/showPicker) */
    showPicker(): void;
    /**
     * Decrements a range input control's value by the value given by the Step attribute. If the optional parameter is used, it will decrement the input control's step value multiplied by the parameter's value.
     * @param n Value to decrement the value by.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/stepDown)
     */
    stepDown(n?: number): void;
    /**
     * Increments a range input control's value by the value given by the Step attribute. If the optional parameter is used, will increment the input control's value by that value.
     * @param n Value to increment the value by.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLInputElement/stepUp)
     */
    stepUp(n?: number): void;
    updateDateTimePicker(value?: DateTimeValue): void;
    updateValidityState(): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLInputElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLInputElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLInputElement: {
    prototype: HTMLInputElement;
    new(): HTMLInputElement;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
    isInstance(obj): obj is HTMLInputElement;
};

/**
 * Exposes specific properties and methods (beyond those defined by regular HTMLElement interface it also has available to it by inheritance) for manipulating list elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLIElement)
 */
interface HTMLLIElement extends HTMLElement {
    /** @deprecated */
    type: string;
    /** Sets or retrieves the value of a list item. */
    value: number;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLIElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLIElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLLIElement: {
    prototype: HTMLLIElement;
    new(): HTMLLIElement;
    isInstance(obj): obj is HTMLLIElement;
};

/**
 * Gives access to properties specific to <label> elements. It inherits methods and properties from the base HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement)
 */
interface HTMLLabelElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/control) */
    readonly control: HTMLElement | null;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form)
     */
    readonly form: HTMLFormElement | null;
    /**
     * Sets or retrieves the object to which the given label object is assigned.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/htmlFor)
     */
    htmlFor: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLabelElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLabelElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLLabelElement: {
    prototype: HTMLLabelElement;
    new(): HTMLLabelElement;
    isInstance(obj): obj is HTMLLabelElement;
};

/**
 * The HTMLLegendElement is an interface allowing to access properties of the <legend> elements. It inherits properties and methods from the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLegendElement)
 */
interface HTMLLegendElement extends HTMLElement {
    /** @deprecated */
    align: string;
    /** Retrieves a reference to the form that the object is embedded in. */
    readonly form: HTMLFormElement | null;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLegendElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLegendElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLLegendElement: {
    prototype: HTMLLegendElement;
    new(): HTMLLegendElement;
    isInstance(obj): obj is HTMLLegendElement;
};

/**
 * Reference information for external resources and the relationship of those resources to a document and vice-versa. This object inherits all of the properties and methods of the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement)
 */
interface HTMLLinkElement extends HTMLElement, LinkStyle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/as) */
    as: string;
    /**
     * Sets or retrieves the character set used to encode the object.
     * @deprecated
     */
    charset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/crossOrigin) */
    crossOrigin: string | null;
    disabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/fetchPriority) */
    fetchPriority: string;
    /**
     * Sets or retrieves a destination URL or an anchor point.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/href)
     */
    href: string;
    /**
     * Sets or retrieves the language code of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/hreflang)
     */
    hreflang: string;
    imageSizes: string;
    imageSrcset: string;
    integrity: string;
    /** Sets or retrieves the media type. */
    media: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/referrerPolicy) */
    referrerPolicy: string;
    /**
     * Sets or retrieves the relationship between the object and the destination of the link.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/rel)
     */
    rel: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/relList) */
    readonly relList: DOMTokenList;
    /**
     * Sets or retrieves the relationship between the object and the destination of the link.
     * @deprecated
     */
    rev: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/sizes) */
    readonly sizes: DOMTokenList;
    /**
     * Sets or retrieves the window or frame at which to target content.
     * @deprecated
     */
    target: string;
    /** Sets or retrieves the MIME type of the object. */
    type: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLinkElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLLinkElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLLinkElement: {
    prototype: HTMLLinkElement;
    new(): HTMLLinkElement;
    isInstance(obj): obj is HTMLLinkElement;
};

/**
 * Provides special properties and methods (beyond those of the regular object HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of map elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMapElement)
 */
interface HTMLMapElement extends HTMLElement {
    /**
     * Retrieves a collection of the area objects defined for the given map object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMapElement/areas)
     */
    readonly areas: HTMLCollection;
    /**
     * Sets or retrieves the name of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMapElement/name)
     */
    name: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMapElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMapElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLMapElement: {
    prototype: HTMLMapElement;
    new(): HTMLMapElement;
    isInstance(obj): obj is HTMLMapElement;
};

interface HTMLMarqueeElementEventMap extends HTMLElementEventMap {
    "bounce": Event;
    "finish": Event;
    "start": Event;
}

/**
 * Provides methods to manipulate <marquee> elements.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMarqueeElement)
 */
interface HTMLMarqueeElement extends HTMLElement {
    /** @deprecated */
    behavior: string;
    /** @deprecated */
    bgColor: string;
    /** @deprecated */
    direction: string;
    /** @deprecated */
    height: string;
    /** @deprecated */
    hspace: number;
    /** @deprecated */
    loop: number;
    /** @deprecated */
    onbounce: ((this: HTMLMarqueeElement, ev: Event) => any) | null;
    /** @deprecated */
    onfinish: ((this: HTMLMarqueeElement, ev: Event) => any) | null;
    /** @deprecated */
    onstart: ((this: HTMLMarqueeElement, ev: Event) => any) | null;
    /** @deprecated */
    scrollAmount: number;
    /** @deprecated */
    scrollDelay: number;
    /** @deprecated */
    trueSpeed: boolean;
    /** @deprecated */
    vspace: number;
    /** @deprecated */
    width: string;
    /** @deprecated */
    start(): void;
    /** @deprecated */
    stop(): void;
    addEventListener<K extends keyof HTMLMarqueeElementEventMap>(type: K, listener: (this: HTMLMarqueeElement, ev: HTMLMarqueeElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLMarqueeElementEventMap>(type: K, listener: (this: HTMLMarqueeElement, ev: HTMLMarqueeElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLMarqueeElement: {
    prototype: HTMLMarqueeElement;
    new(): HTMLMarqueeElement;
    isInstance(obj): obj is HTMLMarqueeElement;
};

interface HTMLMediaElementEventMap extends HTMLElementEventMap {
    "encrypted": Event;
    "waitingforkey": Event;
}

/**
 * Adds to HTMLElement the properties and methods needed to support basic media-related capabilities that are common to audio and video.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement)
 */
interface HTMLMediaElement extends HTMLElement {
    readonly allowedToPlay: boolean;
    readonly audiblePlayTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/audioTracks) */
    readonly audioTracks: AudioTrackList;
    /**
     * Gets or sets a value that indicates whether to start playing the media automatically.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/autoplay)
     */
    autoplay: boolean;
    /**
     * Gets a collection of buffered time ranges.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/buffered)
     */
    readonly buffered: TimeRanges;
    readonly computedMuted: boolean;
    readonly computedVolume: number;
    /**
     * Gets or sets a flag that indicates whether the client provides a set of controls for the media (in case the developer does not include controls for the player).
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/controls)
     */
    controls: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/crossOrigin) */
    crossOrigin: string | null;
    /**
     * Gets the address or URL of the current media resource that is selected by IHTMLMediaElement.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/currentSrc)
     */
    readonly currentSrc: string;
    /**
     * Gets or sets the current playback position, in seconds.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/currentTime)
     */
    currentTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/defaultMuted) */
    defaultMuted: boolean;
    /**
     * Gets or sets the default playback rate when the user is not using fast forward or reverse for a video or audio resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/defaultPlaybackRate)
     */
    defaultPlaybackRate: number;
    /**
     * Returns the duration in seconds of the current media resource. A NaN value is returned if duration is not available, or Infinity if the media resource is streaming.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/duration)
     */
    readonly duration: number;
    /**
     * Gets information about whether the playback has ended or not.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/ended)
     */
    readonly ended: boolean;
    /**
     * Returns an object representing the current error state of the audio or video element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/error)
     */
    "error": ErrorEvent;
    readonly inaudiblePlayTime: number;
    readonly invisiblePlayTime: number;
    readonly isEncrypted: boolean;
    readonly isInViewPort: boolean;
    readonly isSuspendedByInactiveDocOrDocShell: boolean;
    readonly isVideoDecodingSuspended: boolean;
    /**
     * Gets or sets a flag to specify whether playback should restart after it completes.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/loop)
     */
    loop: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/mediaKeys) */
    readonly mediaKeys: MediaKeys | null;
    mozAllowCasting: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/mozAudioCaptured)
     */
    readonly mozAudioCaptured: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/mozFragmentEnd)
     */
    readonly mozFragmentEnd: number;
    mozIsCasting: boolean;
    readonly mozMediaSourceObject: MediaSource | null;
    /**
     * Gets or sets a flag that indicates whether the audio (either audio or the audio track on video media) is muted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/muted)
     */
    muted: boolean;
    readonly mutedPlayTime: number;
    /**
     * Gets the current network activity for the element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/networkState)
     */
    readonly networkState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/encrypted_event) */
    onencrypted: ((this: HTMLMediaElement, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/waitingforkey_event) */
    onwaitingforkey: ((this: HTMLMediaElement, ev: Event) => any) | null;
    /**
     * Gets a flag that specifies whether playback is paused.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/paused)
     */
    readonly paused: boolean;
    /**
     * Gets or sets the current rate of speed for the media resource to play. This speed is expressed as a multiple of the normal speed of the media resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/playbackRate)
     */
    playbackRate: number;
    /**
     * Gets TimeRanges for the current media resource that has been played.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/played)
     */
    readonly played: TimeRanges;
    /**
     * Gets or sets a value indicating what data should be preloaded, if any.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/preload)
     */
    preload: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/preservesPitch) */
    preservesPitch: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/readyState) */
    readonly readyState: number;
    /**
     * Returns a TimeRanges object that represents the ranges of the current media resource that can be seeked.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seekable)
     */
    readonly seekable: TimeRanges;
    /**
     * Gets a flag that indicates whether the client is currently moving to a new playback position in the media resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seeking)
     */
    readonly seeking: boolean;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/sinkId)
     */
    readonly sinkId: string;
    /**
     * The address or URL of the a media resource that is to be considered.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/src)
     */
    src: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/srcObject) */
    srcObject: MediaStream | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/textTracks) */
    readonly textTracks: TextTrackList | null;
    readonly totalAudioPlayTime: number;
    readonly totalVideoHDRPlayTime: number;
    readonly totalVideoPlayTime: number;
    readonly videoDecodeSuspendedTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/videoTracks) */
    readonly videoTracks: VideoTrackList;
    readonly visiblePlayTime: number;
    /**
     * Gets or sets the volume level for audio portions of the media element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/volume)
     */
    volume: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/addTextTrack) */
    addTextTrack(kind: TextTrackKind, label?: string, language?: string): TextTrack;
    /**
     * Returns a string that specifies whether the client can play a given media resource type.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/canPlayType)
     */
    canPlayType(type: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/fastSeek) */
    fastSeek(time: number): void;
    hasSuspendTaint(): boolean;
    /**
     * Resets the audio or video object and loads a new media resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/load)
     */
    load(): void;
    /**
     * @deprecated This is a legacy alias of `captureStream`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/captureStream)
     */
    mozCaptureStream(): MediaStream;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/mozCaptureStreamUntilEnded)
     */
    mozCaptureStreamUntilEnded(): MediaStream;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/mozGetMetadata)
     */
    mozGetMetadata(): any;
    mozRequestDebugInfo(): Promise<HTMLMediaElementDebugInfo>;
    mozRequestDebugLog(): Promise<string>;
    /**
     * Pauses the current playback and sets paused to TRUE.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/pause)
     */
    pause(): void;
    /**
     * Loads and starts playback of a media resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/play)
     */
    play(): Promise<void>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/seekToNextFrame)
     */
    seekToNextFrame(): Promise<void>;
    setAudioSinkFailedStartup(): void;
    setDecodeError(error: string): void;
    setFormatDiagnosticsReportForMimeType(mimeType: string, error: DecoderDoctorReportType): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/setMediaKeys) */
    setMediaKeys(mediaKeys: MediaKeys | null): Promise<void>;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement/setSinkId)
     */
    setSinkId(sinkId: string): Promise<void>;
    setVisible(aVisible: boolean): void;
    readonly NETWORK_EMPTY: 0;
    readonly NETWORK_IDLE: 1;
    readonly NETWORK_LOADING: 2;
    readonly NETWORK_NO_SOURCE: 3;
    readonly HAVE_NOTHING: 0;
    readonly HAVE_METADATA: 1;
    readonly HAVE_CURRENT_DATA: 2;
    readonly HAVE_FUTURE_DATA: 3;
    readonly HAVE_ENOUGH_DATA: 4;
    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLMediaElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLMediaElement: {
    prototype: HTMLMediaElement;
    new(): HTMLMediaElement;
    readonly NETWORK_EMPTY: 0;
    readonly NETWORK_IDLE: 1;
    readonly NETWORK_LOADING: 2;
    readonly NETWORK_NO_SOURCE: 3;
    readonly HAVE_NOTHING: 0;
    readonly HAVE_METADATA: 1;
    readonly HAVE_CURRENT_DATA: 2;
    readonly HAVE_FUTURE_DATA: 3;
    readonly HAVE_ENOUGH_DATA: 4;
    mozEnableDebugLog(): void;
    isInstance(obj): obj is HTMLMediaElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMenuElement) */
interface HTMLMenuElement extends HTMLElement {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMenuElement/compact)
     */
    compact: boolean;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMenuElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMenuElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLMenuElement: {
    prototype: HTMLMenuElement;
    new(): HTMLMenuElement;
    isInstance(obj): obj is HTMLMenuElement;
};

/**
 * Contains descriptive metadata about a document. It inherits all of the properties and methods described in the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMetaElement)
 */
interface HTMLMetaElement extends HTMLElement {
    /** Gets or sets meta-information to associate with httpEquiv or name. */
    content: string;
    /** Gets or sets information used to bind the value of a content attribute of a meta element to an HTTP response header. */
    httpEquiv: string;
    media: string;
    /** Sets or retrieves the value specified in the content attribute of the meta object. */
    name: string;
    /**
     * Sets or retrieves a scheme to be used in interpreting the value of a property specified for the object.
     * @deprecated
     */
    scheme: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMetaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMetaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLMetaElement: {
    prototype: HTMLMetaElement;
    new(): HTMLMetaElement;
    isInstance(obj): obj is HTMLMetaElement;
};

/**
 * The HTML <meter> elements expose the HTMLMeterElement interface, which provides special properties and methods (beyond the HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of <meter> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement)
 */
interface HTMLMeterElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/high) */
    high: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/labels) */
    readonly labels: NodeList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/low) */
    low: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/max) */
    max: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/min) */
    min: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/optimum) */
    optimum: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLMeterElement/value) */
    value: number;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMeterElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLMeterElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLMeterElement: {
    prototype: HTMLMeterElement;
    new(): HTMLMeterElement;
    isInstance(obj): obj is HTMLMeterElement;
};

/**
 * Provides special properties (beyond the regular methods and properties available through the HTMLElement interface they also have available to them by inheritance) for manipulating modification elements, that is <del> and <ins>.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLModElement)
 */
interface HTMLModElement extends HTMLElement {
    /**
     * Sets or retrieves reference information about the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLModElement/cite)
     */
    cite: string;
    /**
     * Sets or retrieves the date and time of a modification to the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLModElement/dateTime)
     */
    dateTime: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLModElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLModElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLModElement: {
    prototype: HTMLModElement;
    new(): HTMLModElement;
    isInstance(obj): obj is HTMLModElement;
};

interface HTMLModelElement {
}

declare var HTMLModelElement: {
    prototype: HTMLModelElement;
    new(): HTMLModelElement;
    isInstance(obj): obj is HTMLModelElement;
};

/**
 * Provides special properties (beyond those defined on the regular HTMLElement interface it also has available to it by inheritance) for manipulating ordered list elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOListElement)
 */
interface HTMLOListElement extends HTMLElement {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOListElement/compact)
     */
    compact: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOListElement/reversed) */
    reversed: boolean;
    /**
     * The starting number.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOListElement/start)
     */
    start: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOListElement/type) */
    type: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLOListElement: {
    prototype: HTMLOListElement;
    new(): HTMLOListElement;
    isInstance(obj): obj is HTMLOListElement;
};

/**
 * Provides special properties and methods (beyond those on the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of <object> element, representing external resources.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement)
 */
interface HTMLObjectElement extends HTMLElement, MozFrameLoaderOwner, MozImageLoadingContent, MozObjectLoadingContent {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/align)
     */
    align: string;
    /**
     * Sets or retrieves a character string that can be used to implement your own archive functionality for the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/archive)
     */
    archive: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/border)
     */
    border: string;
    /**
     * Sets or retrieves the URL of the file containing the compiled Java class.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/code)
     */
    code: string;
    /**
     * Sets or retrieves the URL of the component.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/codeBase)
     */
    codeBase: string;
    /**
     * Sets or retrieves the Internet media type for the code associated with the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/codeType)
     */
    codeType: string;
    /**
     * Retrieves the document object of the page or frame.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/contentDocument)
     */
    readonly contentDocument: Document | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/contentWindow) */
    readonly contentWindow: WindowProxy | null;
    /**
     * Sets or retrieves the URL that references the data of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/data)
     */
    data: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/declare)
     */
    declare: boolean;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/form)
     */
    readonly form: HTMLFormElement | null;
    /**
     * Sets or retrieves the height of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/height)
     */
    height: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/hspace)
     */
    hspace: number;
    /**
     * Sets or retrieves the name of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/name)
     */
    name: string;
    /**
     * Sets or retrieves a message to be displayed while an object is loading.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/standby)
     */
    standby: string;
    /**
     * Sets or retrieves the MIME type of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/type)
     */
    type: string;
    /**
     * Sets or retrieves the URL, often with a bookmark extension (#name), to use as a client-side image map.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/useMap)
     */
    useMap: string;
    /**
     * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/validationMessage)
     */
    readonly validationMessage: string;
    /**
     * Returns a  ValidityState object that represents the validity states of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/validity)
     */
    readonly validity: ValidityState;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/vspace)
     */
    vspace: number;
    /**
     * Sets or retrieves the width of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/width)
     */
    width: string;
    /**
     * Returns whether an element will successfully validate based on forms validation rules and constraints.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/willValidate)
     */
    readonly willValidate: boolean;
    /**
     * Returns whether a form will validate when it is submitted, without having to submit it.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/checkValidity)
     */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/getSVGDocument) */
    getSVGDocument(): Document | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/reportValidity) */
    reportValidity(): boolean;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLObjectElement/setCustomValidity)
     */
    setCustomValidity(error: string): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLObjectElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLObjectElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLObjectElement: {
    prototype: HTMLObjectElement;
    new(): HTMLObjectElement;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
    readonly TYPE_LOADING: 0;
    readonly TYPE_IMAGE: 1;
    readonly TYPE_FALLBACK: 2;
    readonly TYPE_FAKE_PLUGIN: 3;
    readonly TYPE_DOCUMENT: 4;
    readonly TYPE_NULL: 5;
    isInstance(obj): obj is HTMLObjectElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of <optgroup> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptGroupElement)
 */
interface HTMLOptGroupElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptGroupElement/disabled) */
    disabled: boolean;
    /**
     * Sets or retrieves a value that you can use to implement your own label functionality for the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptGroupElement/label)
     */
    label: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOptGroupElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOptGroupElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLOptGroupElement: {
    prototype: HTMLOptGroupElement;
    new(): HTMLOptGroupElement;
    isInstance(obj): obj is HTMLOptGroupElement;
};

/**
 * <option> elements and inherits all classes and methods of the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement)
 */
interface HTMLOptionElement extends HTMLElement {
    /**
     * Sets or retrieves the status of an option.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/defaultSelected)
     */
    defaultSelected: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/disabled) */
    disabled: boolean;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/form)
     */
    readonly form: HTMLFormElement | null;
    /**
     * Sets or retrieves the ordinal position of an option in a list box.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/index)
     */
    readonly index: number;
    /**
     * Sets or retrieves a value that you can use to implement your own label functionality for the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/label)
     */
    label: string;
    /**
     * Sets or retrieves whether the option in the list box is the default item.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/selected)
     */
    selected: boolean;
    /**
     * Sets or retrieves the text string specified by the option tag.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/text)
     */
    text: string;
    /**
     * Sets or retrieves the value which is returned to the server when the form control is submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionElement/value)
     */
    value: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOptionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOptionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLOptionElement: {
    prototype: HTMLOptionElement;
    new(): HTMLOptionElement;
    isInstance(obj): obj is HTMLOptionElement;
};

/**
 * HTMLOptionsCollection is an interface representing a collection of HTML option elements (in document order) and offers methods and properties for traversing the list as well as optionally altering its items. This type is returned solely by the "options" property of select.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection)
 */
interface HTMLOptionsCollection extends HTMLCollectionBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/length) */
    length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/selectedIndex) */
    selectedIndex: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/add) */
    add(element: HTMLOptionElement | HTMLOptGroupElement, before?: HTMLElement | number | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOptionsCollection/remove) */
    remove(index: number): void;
}

declare var HTMLOptionsCollection: {
    prototype: HTMLOptionsCollection;
    new(): HTMLOptionsCollection;
    isInstance(obj): obj is HTMLOptionsCollection;
};

interface HTMLOrForeignElement {
    autofocus: boolean;
    readonly dataset: DOMStringMap;
    tabIndex: number;
    blur(): void;
    focus(options?: FocusOptions): void;
}

/**
 * Provides properties and methods (beyond those inherited from HTMLElement) for manipulating the layout and presentation of <output> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement)
 */
interface HTMLOutputElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/defaultValue) */
    defaultValue: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/form) */
    readonly form: HTMLFormElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/htmlFor) */
    readonly htmlFor: DOMTokenList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/labels) */
    readonly labels: NodeList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/type) */
    readonly type: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/validationMessage) */
    readonly validationMessage: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/validity) */
    readonly validity: ValidityState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/value) */
    value: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/willValidate) */
    readonly willValidate: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/checkValidity) */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/reportValidity) */
    reportValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLOutputElement/setCustomValidity) */
    setCustomValidity(error: string): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOutputElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLOutputElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLOutputElement: {
    prototype: HTMLOutputElement;
    new(): HTMLOutputElement;
    isInstance(obj): obj is HTMLOutputElement;
};

/**
 * Provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating <p> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParagraphElement)
 */
interface HTMLParagraphElement extends HTMLElement {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParagraphElement/align)
     */
    align: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLParagraphElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLParagraphElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLParagraphElement: {
    prototype: HTMLParagraphElement;
    new(): HTMLParagraphElement;
    isInstance(obj): obj is HTMLParagraphElement;
};

/**
 * Provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating <param> elements, representing a pair of a key and a value that acts as a parameter for an <object> element.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParamElement)
 */
interface HTMLParamElement extends HTMLElement {
    /**
     * Sets or retrieves the name of an input parameter for an element.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParamElement/name)
     */
    name: string;
    /**
     * Sets or retrieves the content type of the resource designated by the value attribute.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParamElement/type)
     */
    type: string;
    /**
     * Sets or retrieves the value of an input parameter for an element.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParamElement/value)
     */
    value: string;
    /**
     * Sets or retrieves the data type of the value attribute.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLParamElement/valueType)
     */
    valueType: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLParamElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLParamElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var HTMLParamElement: {
    prototype: HTMLParamElement;
    new(): HTMLParamElement;
    isInstance(obj): obj is HTMLParamElement;
};

/**
 * A <picture> HTML element. It doesn't implement specific properties or methods.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLPictureElement)
 */
interface HTMLPictureElement extends HTMLElement {
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLPictureElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLPictureElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLPictureElement: {
    prototype: HTMLPictureElement;
    new(): HTMLPictureElement;
    isInstance(obj): obj is HTMLPictureElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLPortalElement) */
interface HTMLPortalElement {
}

declare var HTMLPortalElement: {
    prototype: HTMLPortalElement;
    new(): HTMLPortalElement;
    isInstance(obj): obj is HTMLPortalElement;
};

/**
 * Exposes specific properties and methods (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating a block of preformatted text (<pre>).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLPreElement)
 */
interface HTMLPreElement extends HTMLElement {
    /**
     * Sets or gets a value that you can use to implement your own width functionality for the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLPreElement/width)
     */
    width: number;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLPreElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLPreElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLPreElement: {
    prototype: HTMLPreElement;
    new(): HTMLPreElement;
    isInstance(obj): obj is HTMLPreElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of <progress> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLProgressElement)
 */
interface HTMLProgressElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLProgressElement/labels) */
    readonly labels: NodeList;
    /**
     * Defines the maximum, or "done" value for a progress element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLProgressElement/max)
     */
    max: number;
    /**
     * Returns the quotient of value/max when the value attribute is set (determinate progress bar), or -1 when the value attribute is missing (indeterminate progress bar).
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLProgressElement/position)
     */
    readonly position: number;
    /**
     * Sets or gets the current value of a progress element. The value must be a non-negative number between 0 and the max value.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLProgressElement/value)
     */
    value: number;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLProgressElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLProgressElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLProgressElement: {
    prototype: HTMLProgressElement;
    new(): HTMLProgressElement;
    isInstance(obj): obj is HTMLProgressElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating quoting elements, like <blockquote> and <q>, but not the <cite> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLQuoteElement)
 */
interface HTMLQuoteElement extends HTMLElement {
    /**
     * Sets or retrieves reference information about the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLQuoteElement/cite)
     */
    cite: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLQuoteElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLQuoteElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLQuoteElement: {
    prototype: HTMLQuoteElement;
    new(): HTMLQuoteElement;
    isInstance(obj): obj is HTMLQuoteElement;
};

/**
 * HTML <script> elements expose the HTMLScriptElement interface, which provides special properties and methods for manipulating the behavior and execution of <script> elements (beyond the inherited HTMLElement interface).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement)
 */
interface HTMLScriptElement extends HTMLElement {
    async: boolean;
    /**
     * Sets or retrieves the character set used to encode the object.
     * @deprecated
     */
    charset: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/crossOrigin) */
    crossOrigin: string | null;
    /** Sets or retrieves the status of the script. */
    defer: boolean;
    /**
     * Sets or retrieves the event for which the script is written.
     * @deprecated
     */
    event: string;
    fetchPriority: string;
    /**
     * Sets or retrieves the object that is bound to the event script.
     * @deprecated
     */
    htmlFor: string;
    integrity: string;
    noModule: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/referrerPolicy) */
    referrerPolicy: string;
    /** Retrieves the URL to an external file that contains the source code or data. */
    src: string;
    /** Retrieves or sets the text of the object as a string. */
    text: string;
    /** Sets or retrieves the MIME type for the associated scripting engine. */
    type: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLScriptElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLScriptElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLScriptElement: {
    prototype: HTMLScriptElement;
    new(): HTMLScriptElement;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/supports_static) */
    supports(type: string): boolean;
    isInstance(obj): obj is HTMLScriptElement;
};

/**
 * A <select> HTML Element. These elements also share all of the properties and methods of other HTML elements via the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement)
 */
interface HTMLSelectElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/autocomplete) */
    autocomplete: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/disabled) */
    disabled: boolean;
    /**
     * Retrieves a reference to the form that the object is embedded in.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/form)
     */
    readonly form: HTMLFormElement | null;
    readonly isCombobox: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/labels) */
    readonly labels: NodeList;
    /**
     * Sets or retrieves the number of objects in a collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/length)
     */
    length: number;
    /**
     * Sets or retrieves the Boolean value indicating whether multiple items can be selected from a list.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/multiple)
     */
    multiple: boolean;
    /**
     * Sets or retrieves the name of the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/name)
     */
    name: string;
    openInParentProcess: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/options) */
    readonly options: HTMLOptionsCollection;
    previewValue: string;
    /**
     * When present, marks an element that can't be submitted without a value.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/required)
     */
    required: boolean;
    /**
     * Sets or retrieves the index of the selected option in a select object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/selectedIndex)
     */
    selectedIndex: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/selectedOptions) */
    readonly selectedOptions: HTMLCollection;
    /**
     * Sets or retrieves the number of rows in the list box.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/size)
     */
    size: number;
    /**
     * Retrieves the type of select control based on the value of the MULTIPLE attribute.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/type)
     */
    readonly type: string;
    /**
     * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/validationMessage)
     */
    readonly validationMessage: string;
    /**
     * Returns a  ValidityState object that represents the validity states of an element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/validity)
     */
    readonly validity: ValidityState;
    /**
     * Sets or retrieves the value which is returned to the server when the form control is submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/value)
     */
    value: string;
    /**
     * Returns whether an element will successfully validate based on forms validation rules and constraints.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/willValidate)
     */
    readonly willValidate: boolean;
    /**
     * Adds an element to the areas, controlRange, or options collection.
     * @param element Variant of type Number that specifies the index position in the collection where the element is placed. If no value is given, the method places the element at the end of the collection.
     * @param before Variant of type Object that specifies an element to insert before, or null to append the object to the collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/add)
     */
    add(element: HTMLOptionElement | HTMLOptGroupElement, before?: HTMLElement | number | null): void;
    /**
     * Returns whether a form will validate when it is submitted, without having to submit it.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/checkValidity)
     */
    checkValidity(): boolean;
    getAutocompleteInfo(): AutocompleteInfo;
    /**
     * Retrieves a select object or an object from an options collection.
     * @param name Variant of type Number or String that specifies the object or collection to retrieve. If this parameter is an integer, it is the zero-based index of the object. If this parameter is a string, all objects with matching name or id properties are retrieved, and a collection is returned if more than one match is made.
     * @param index Variant of type Number that specifies the zero-based index of the object to retrieve when a collection is returned.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/item)
     */
    item(index: number): Element | null;
    /**
     * Retrieves a select object or an object from an options collection.
     * @param namedItem A String that specifies the name or id property of the object to retrieve. A collection is returned if more than one match is made.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/namedItem)
     */
    namedItem(name: string): HTMLOptionElement | null;
    /**
     * Removes an element from the collection.
     * @param index Number that specifies the zero-based index of the element to remove from the collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/remove)
     */
    remove(index: number): void;
    remove(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/reportValidity) */
    reportValidity(): boolean;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/setCustomValidity)
     */
    setCustomValidity(error: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSelectElement/showPicker) */
    showPicker(): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSelectElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSelectElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: Element;
}

declare var HTMLSelectElement: {
    prototype: HTMLSelectElement;
    new(): HTMLSelectElement;
    isInstance(obj): obj is HTMLSelectElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement) */
interface HTMLSlotElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/assign) */
    assign(...nodes: (Element | Text)[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/assignedElements) */
    assignedElements(options?: AssignedNodesOptions): Element[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSlotElement/assignedNodes) */
    assignedNodes(options?: AssignedNodesOptions): Node[];
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSlotElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSlotElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLSlotElement: {
    prototype: HTMLSlotElement;
    new(): HTMLSlotElement;
    isInstance(obj): obj is HTMLSlotElement;
};

/**
 * Provides special properties (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating <source> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement)
 */
interface HTMLSourceElement extends HTMLElement {
    height: number;
    /**
     * Gets or sets the intended media type of the media source.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/media)
     */
    media: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/sizes) */
    sizes: string;
    /**
     * The address or URL of the a media resource that is to be considered.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/src)
     */
    src: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/srcset) */
    srcset: string;
    /**
     * Gets or sets the MIME type of a media resource.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSourceElement/type)
     */
    type: string;
    width: number;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSourceElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSourceElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLSourceElement: {
    prototype: HTMLSourceElement;
    new(): HTMLSourceElement;
    isInstance(obj): obj is HTMLSourceElement;
};

/**
 * A <span> element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLSpanElement)
 */
interface HTMLSpanElement extends HTMLElement {
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSpanElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLSpanElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLSpanElement: {
    prototype: HTMLSpanElement;
    new(): HTMLSpanElement;
    isInstance(obj): obj is HTMLSpanElement;
};

/**
 * A <style> element. It inherits properties and methods from its parent, HTMLElement, and from LinkStyle.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLStyleElement)
 */
interface HTMLStyleElement extends HTMLElement, LinkStyle {
    /**
     * Enables or disables the style sheet.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLStyleElement/disabled)
     */
    disabled: boolean;
    /**
     * Sets or retrieves the media type.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLStyleElement/media)
     */
    media: string;
    /**
     * Retrieves the CSS language in which the style sheet is written.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLStyleElement/type)
     */
    type: string;
    setDevtoolsAsTriggeringPrincipal(): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLStyleElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLStyleElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLStyleElement: {
    prototype: HTMLStyleElement;
    new(): HTMLStyleElement;
    isInstance(obj): obj is HTMLStyleElement;
};

/**
 * Special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating table caption elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCaptionElement)
 */
interface HTMLTableCaptionElement extends HTMLElement {
    /**
     * Sets or retrieves the alignment of the caption or legend.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCaptionElement/align)
     */
    align: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableCaptionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableCaptionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableCaptionElement: {
    prototype: HTMLTableCaptionElement;
    new(): HTMLTableCaptionElement;
    isInstance(obj): obj is HTMLTableCaptionElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of table cells, either header or data cells, in an HTML document.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement)
 */
interface HTMLTableCellElement extends HTMLElement {
    /**
     * Sets or retrieves abbreviated text for the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/abbr)
     */
    abbr: string;
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/align)
     */
    align: string;
    /**
     * Sets or retrieves a comma-delimited list of conceptual categories associated with the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/axis)
     */
    axis: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/bgColor)
     */
    bgColor: string;
    /**
     * Retrieves the position of the object in the cells collection of a row.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/cellIndex)
     */
    readonly cellIndex: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/ch)
     */
    ch: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/chOff)
     */
    chOff: string;
    /**
     * Sets or retrieves the number columns in the table that the object should span.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/colSpan)
     */
    colSpan: number;
    /**
     * Sets or retrieves a list of header cells that provide information for the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/headers)
     */
    headers: string;
    /**
     * Sets or retrieves the height of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/height)
     */
    height: string;
    /**
     * Sets or retrieves whether the browser automatically performs wordwrap.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/noWrap)
     */
    noWrap: boolean;
    /**
     * Sets or retrieves how many rows in a table the cell should span.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/rowSpan)
     */
    rowSpan: number;
    /**
     * Sets or retrieves the group of cells in a table to which the object's information applies.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/scope)
     */
    scope: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/vAlign)
     */
    vAlign: string;
    /**
     * Sets or retrieves the width of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableCellElement/width)
     */
    width: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableCellElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableCellElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableCellElement: {
    prototype: HTMLTableCellElement;
    new(): HTMLTableCellElement;
    isInstance(obj): obj is HTMLTableCellElement;
};

/**
 * Provides special properties (beyond the HTMLElement interface it also has available to it inheritance) for manipulating single or grouped table column elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement)
 */
interface HTMLTableColElement extends HTMLElement {
    /**
     * Sets or retrieves the alignment of the object relative to the display or table.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/align)
     */
    align: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/ch)
     */
    ch: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/chOff)
     */
    chOff: string;
    /**
     * Sets or retrieves the number of columns in the group.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/span)
     */
    span: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/vAlign)
     */
    vAlign: string;
    /**
     * Sets or retrieves the width of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableColElement/width)
     */
    width: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableColElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableColElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableColElement: {
    prototype: HTMLTableColElement;
    new(): HTMLTableColElement;
    isInstance(obj): obj is HTMLTableColElement;
};

/**
 * Provides special properties and methods (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating the layout and presentation of tables in an HTML document.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement)
 */
interface HTMLTableElement extends HTMLElement {
    /**
     * Sets or retrieves a value that indicates the table alignment.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/align)
     */
    align: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/bgColor)
     */
    bgColor: string;
    /**
     * Sets or retrieves the width of the border to draw around the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/border)
     */
    border: string;
    /**
     * Retrieves the caption object of a table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/caption)
     */
    caption: HTMLTableCaptionElement | null;
    /**
     * Sets or retrieves the amount of space between the border of the cell and the content of the cell.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/cellPadding)
     */
    cellPadding: string;
    /**
     * Sets or retrieves the amount of space between cells in a table.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/cellSpacing)
     */
    cellSpacing: string;
    /**
     * Sets or retrieves the way the border frame around the table is displayed.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/frame)
     */
    frame: string;
    /**
     * Sets or retrieves the number of horizontal rows contained in the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/rows)
     */
    readonly rows: HTMLCollection;
    /**
     * Sets or retrieves which dividing lines (inner borders) are displayed.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/rules)
     */
    rules: string;
    /**
     * Sets or retrieves a description and/or structure of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/summary)
     */
    summary: string;
    /**
     * Retrieves a collection of all tBody objects in the table. Objects in this collection are in source order.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/tBodies)
     */
    readonly tBodies: HTMLCollection;
    /**
     * Retrieves the tFoot object of the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/tFoot)
     */
    tFoot: HTMLTableSectionElement | null;
    /**
     * Retrieves the tHead object of the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/tHead)
     */
    tHead: HTMLTableSectionElement | null;
    /**
     * Sets or retrieves the width of the object.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/width)
     */
    width: string;
    /**
     * Creates an empty caption element in the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/createCaption)
     */
    createCaption(): HTMLElement;
    /**
     * Creates an empty tBody element in the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/createTBody)
     */
    createTBody(): HTMLElement;
    /**
     * Creates an empty tFoot element in the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/createTFoot)
     */
    createTFoot(): HTMLElement;
    /**
     * Returns the tHead element object if successful, or null otherwise.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/createTHead)
     */
    createTHead(): HTMLElement;
    /**
     * Deletes the caption element and its contents from the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/deleteCaption)
     */
    deleteCaption(): void;
    /**
     * Removes the specified row (tr) from the element and from the rows collection.
     * @param index Number that specifies the zero-based position in the rows collection of the row to remove.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/deleteRow)
     */
    deleteRow(index: number): void;
    /**
     * Deletes the tFoot element and its contents from the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/deleteTFoot)
     */
    deleteTFoot(): void;
    /**
     * Deletes the tHead element and its contents from the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/deleteTHead)
     */
    deleteTHead(): void;
    /**
     * Creates a new row (tr) in the table, and adds the row to the rows collection.
     * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableElement/insertRow)
     */
    insertRow(index?: number): HTMLElement;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableElement: {
    prototype: HTMLTableElement;
    new(): HTMLTableElement;
    isInstance(obj): obj is HTMLTableElement;
};

/**
 * Provides special properties and methods (beyond the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of rows in an HTML table.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement)
 */
interface HTMLTableRowElement extends HTMLElement {
    /**
     * Sets or retrieves how the object is aligned with adjacent text.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/align)
     */
    align: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/bgColor)
     */
    bgColor: string;
    /**
     * Retrieves a collection of all cells in the table row.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/cells)
     */
    readonly cells: HTMLCollection;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/ch)
     */
    ch: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/chOff)
     */
    chOff: string;
    /**
     * Retrieves the position of the object in the rows collection for the table.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/rowIndex)
     */
    readonly rowIndex: number;
    /**
     * Retrieves the position of the object in the collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/sectionRowIndex)
     */
    readonly sectionRowIndex: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/vAlign)
     */
    vAlign: string;
    /**
     * Removes the specified cell from the table row, as well as from the cells collection.
     * @param index Number that specifies the zero-based position of the cell to remove from the table row. If no value is provided, the last cell in the cells collection is deleted.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/deleteCell)
     */
    deleteCell(index: number): void;
    /**
     * Creates a new cell in the table row, and adds the cell to the cells collection.
     * @param index Number that specifies where to insert the cell in the tr. The default value is -1, which appends the new cell to the end of the cells collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableRowElement/insertCell)
     */
    insertCell(index?: number): HTMLElement;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableRowElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableRowElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableRowElement: {
    prototype: HTMLTableRowElement;
    new(): HTMLTableRowElement;
    isInstance(obj): obj is HTMLTableRowElement;
};

/**
 * Provides special properties and methods (beyond the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of sections, that is headers, footers and bodies, in an HTML table.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement)
 */
interface HTMLTableSectionElement extends HTMLElement {
    /**
     * Sets or retrieves a value that indicates the table alignment.
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/align)
     */
    align: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/ch)
     */
    ch: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/chOff)
     */
    chOff: string;
    /**
     * Sets or retrieves the number of horizontal rows contained in the object.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/rows)
     */
    readonly rows: HTMLCollection;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/vAlign)
     */
    vAlign: string;
    /**
     * Removes the specified row (tr) from the element and from the rows collection.
     * @param index Number that specifies the zero-based position in the rows collection of the row to remove.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/deleteRow)
     */
    deleteRow(index: number): void;
    /**
     * Creates a new row (tr) in the table, and adds the row to the rows collection.
     * @param index Number that specifies where to insert the row in the rows collection. The default value is -1, which appends the new row to the end of the rows collection.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTableSectionElement/insertRow)
     */
    insertRow(index?: number): HTMLElement;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableSectionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTableSectionElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTableSectionElement: {
    prototype: HTMLTableSectionElement;
    new(): HTMLTableSectionElement;
    isInstance(obj): obj is HTMLTableSectionElement;
};

/**
 * Enables access to the contents of an HTML <template> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTemplateElement)
 */
interface HTMLTemplateElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTemplateElement/content) */
    readonly content: DocumentFragment;
    shadowRootDelegatesFocus: boolean;
    shadowRootMode: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTemplateElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTemplateElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTemplateElement: {
    prototype: HTMLTemplateElement;
    new(): HTMLTemplateElement;
    isInstance(obj): obj is HTMLTemplateElement;
};

/**
 * Provides special properties and methods for manipulating the layout and presentation of <textarea> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement)
 */
interface HTMLTextAreaElement extends HTMLElement, MozEditableElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/autocomplete) */
    autocomplete: string;
    /** Sets or retrieves the width of the object. */
    cols: number;
    readonly controllers: XULControllers;
    /** Sets or retrieves the initial contents of the object. */
    defaultValue: string;
    dirName: string;
    disabled: boolean;
    /** Retrieves a reference to the form that the object is embedded in. */
    readonly form: HTMLFormElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/labels) */
    readonly labels: NodeList;
    /** Sets or retrieves the maximum number of characters that the user can enter in a text control. */
    maxLength: number;
    minLength: number;
    /** Sets or retrieves the name of the object. */
    name: string;
    /** Gets or sets a text string that is displayed in an input field as a hint or prompt to users as the format or type of information they need to enter.The text appears in an input field until the user puts focus on the field. */
    placeholder: string;
    previewValue: string;
    /** Sets or retrieves the value indicated whether the content of the object is read-only. */
    readOnly: boolean;
    /** When present, marks an element that can't be submitted without a value. */
    required: boolean;
    /** Sets or retrieves the number of horizontal rows contained in the object. */
    rows: number;
    selectionDirection: string | null;
    /** Gets or sets the end position or offset of a text selection. */
    selectionEnd: number | null;
    /** Gets or sets the starting position or offset of a text selection. */
    selectionStart: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/textLength) */
    readonly textLength: number;
    /** Retrieves the type of control. */
    readonly type: string;
    /** Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting. */
    readonly validationMessage: string;
    /** Returns a  ValidityState object that represents the validity states of an element. */
    readonly validity: ValidityState;
    /** Retrieves or sets the text in the entry field of the textArea element. */
    value: string;
    /** Returns whether an element will successfully validate based on forms validation rules and constraints. */
    readonly willValidate: boolean;
    /** Sets or retrieves how to handle wordwrapping in the object. */
    wrap: string;
    /** Returns whether a form will validate when it is submitted, without having to submit it. */
    checkValidity(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTextAreaElement/reportValidity) */
    reportValidity(): boolean;
    /** Highlights the input area of a form element. */
    select(): void;
    /**
     * Sets a custom error message that is displayed when a form is submitted.
     * @param error Sets a custom error message that is displayed when a form is submitted.
     */
    setCustomValidity(error: string): void;
    setRangeText(replacement: string): void;
    setRangeText(replacement: string, start: number, end: number, selectionMode?: SelectionMode): void;
    /**
     * Sets the start and end positions of a selection in a text field.
     * @param start The offset into the text field for the start of the selection.
     * @param end The offset into the text field for the end of the selection.
     * @param direction The direction in which the selection is performed.
     */
    setSelectionRange(start: number, end: number, direction?: string): void;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTextAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTextAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTextAreaElement: {
    prototype: HTMLTextAreaElement;
    new(): HTMLTextAreaElement;
    isInstance(obj): obj is HTMLTextAreaElement;
};

/**
 * Provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <time> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTimeElement)
 */
interface HTMLTimeElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTimeElement/dateTime) */
    dateTime: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTimeElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTimeElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTimeElement: {
    prototype: HTMLTimeElement;
    new(): HTMLTimeElement;
    isInstance(obj): obj is HTMLTimeElement;
};

/**
 * Contains the title for a document. This element inherits all of the properties and methods of the HTMLElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTitleElement)
 */
interface HTMLTitleElement extends HTMLElement {
    /**
     * Retrieves or sets the text of the object as a string.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTitleElement/text)
     */
    text: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTitleElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTitleElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTitleElement: {
    prototype: HTMLTitleElement;
    new(): HTMLTitleElement;
    isInstance(obj): obj is HTMLTitleElement;
};

/**
 * The HTMLTrackElement
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement)
 */
interface HTMLTrackElement extends HTMLElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/default) */
    default: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/kind) */
    kind: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/label) */
    label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/readyState) */
    readonly readyState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/src) */
    src: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/srclang) */
    srclang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLTrackElement/track) */
    readonly track: TextTrack | null;
    readonly NONE: 0;
    readonly LOADING: 1;
    readonly LOADED: 2;
    readonly ERROR: 3;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTrackElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTrackElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLTrackElement: {
    prototype: HTMLTrackElement;
    new(): HTMLTrackElement;
    readonly NONE: 0;
    readonly LOADING: 1;
    readonly LOADED: 2;
    readonly ERROR: 3;
    isInstance(obj): obj is HTMLTrackElement;
};

/**
 * Provides special properties (beyond those defined on the regular HTMLElement interface it also has available to it by inheritance) for manipulating unordered list elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLUListElement)
 */
interface HTMLUListElement extends HTMLElement {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLUListElement/compact)
     */
    compact: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLUListElement/type)
     */
    type: string;
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLUListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLUListElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLUListElement: {
    prototype: HTMLUListElement;
    new(): HTMLUListElement;
    isInstance(obj): obj is HTMLUListElement;
};

/**
 * An invalid HTML element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLUnknownElement)
 */
interface HTMLUnknownElement extends HTMLElement {
    addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLUnknownElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLUnknownElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLUnknownElement: {
    prototype: HTMLUnknownElement;
    new(): HTMLUnknownElement;
    isInstance(obj): obj is HTMLUnknownElement;
};

/**
 * Provides special properties and methods for manipulating video objects. It also inherits properties and methods of HTMLMediaElement and HTMLElement.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement)
 */
interface HTMLVideoElement extends HTMLMediaElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/disablePictureInPicture) */
    disablePictureInPicture: boolean;
    /**
     * Gets or sets the height of the video element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/height)
     */
    height: number;
    readonly isCloningElementVisually: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozDecodedFrames)
     */
    readonly mozDecodedFrames: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozFrameDelay)
     */
    readonly mozFrameDelay: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozHasAudio)
     */
    readonly mozHasAudio: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozPaintedFrames)
     */
    readonly mozPaintedFrames: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozParsedFrames)
     */
    readonly mozParsedFrames: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/mozPresentedFrames)
     */
    readonly mozPresentedFrames: number;
    /** Gets or sets the playsinline of the video element. for example, On iPhone, video elements will now be allowed to play inline, and will not automatically enter fullscreen mode when playback begins. */
    playsInline: unknown;
    /**
     * Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/poster)
     */
    poster: string;
    /**
     * Gets the intrinsic height of a video in CSS pixels, or zero if the dimensions are not known.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/videoHeight)
     */
    readonly videoHeight: number;
    /**
     * Gets the intrinsic width of a video in CSS pixels, or zero if the dimensions are not known.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/videoWidth)
     */
    readonly videoWidth: number;
    /**
     * Gets or sets the width of the video element.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/width)
     */
    width: number;
    cloneElementVisually(target: HTMLVideoElement): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement/getVideoPlaybackQuality) */
    getVideoPlaybackQuality(): VideoPlaybackQuality;
    stopCloningElementVisually(): void;
    addEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLVideoElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof HTMLMediaElementEventMap>(type: K, listener: (this: HTMLVideoElement, ev: HTMLMediaElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var HTMLVideoElement: {
    prototype: HTMLVideoElement;
    new(): HTMLVideoElement;
    isInstance(obj): obj is HTMLVideoElement;
};

/**
 * Events that fire when the fragment identifier of the URL has changed.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HashChangeEvent)
 */
interface HashChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HashChangeEvent/newURL) */
    readonly newURL: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HashChangeEvent/oldURL) */
    readonly oldURL: string;
    initHashChangeEvent(typeArg: string, canBubbleArg?: boolean, cancelableArg?: boolean, oldURLArg?: string, newURLArg?: string): void;
}

declare var HashChangeEvent: {
    prototype: HashChangeEvent;
    new(type: string, eventInitDict?: HashChangeEventInit): HashChangeEvent;
    isInstance(obj): obj is HashChangeEvent;
};

/**
 * This Fetch API interface allows you to perform various actions on HTTP request and response headers. These actions include retrieving, setting, adding to, and removing. A Headers object has an associated header list, which is initially empty and consists of zero or more name and value pairs.  You can add to this using methods like append() (see Examples.) In all methods of this interface, header names are matched by case-insensitive byte sequence.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers)
 */
interface Headers {
    guard: HeadersGuardEnum;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/append) */
    append(name: string, value: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/delete) */
    delete(name: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/get) */
    get(name: string): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/getSetCookie) */
    getSetCookie(): string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/has) */
    has(name: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Headers/set) */
    set(name: string, value: string): void;
    forEach(callbackfn: (value: string, key: string, parent: Headers) => void, thisArg?: any): void;
}

declare var Headers: {
    prototype: Headers;
    new(init?: HeadersInit): Headers;
    isInstance(obj): obj is Headers;
};

interface HeapSnapshot {
    readonly creationTime: number | null;
    computeDominatorTree(): DominatorTree;
    computeShortestPaths(start: NodeId, targets: NodeId[], maxNumPaths: number): any;
    describeNode(breakdown: any, node: NodeId): any;
    takeCensus(options: any): any;
}

declare var HeapSnapshot: {
    prototype: HeapSnapshot;
    new(): HeapSnapshot;
    isInstance(obj): obj is HeapSnapshot;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Highlight) */
interface Highlight {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Highlight/priority) */
    priority: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Highlight/type) */
    type: HighlightType;
    forEach(callbackfn: (value: AbstractRange, key: AbstractRange, parent: Highlight) => void, thisArg?: any): void;
}

declare var Highlight: {
    prototype: Highlight;
    new(...initialRanges: AbstractRange[]): Highlight;
    isInstance(obj): obj is Highlight;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HighlightRegistry) */
interface HighlightRegistry {
    forEach(callbackfn: (value: Highlight, key: string, parent: HighlightRegistry) => void, thisArg?: any): void;
}

declare var HighlightRegistry: {
    prototype: HighlightRegistry;
    new(): HighlightRegistry;
    isInstance(obj): obj is HighlightRegistry;
};

/**
 * Allows manipulation of the browser session history, that is the pages visited in the tab or frame that the current page is loaded in.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/History)
 */
interface History {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/scrollRestoration) */
    scrollRestoration: ScrollRestoration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/state) */
    readonly state: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/back) */
    back(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/forward) */
    forward(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/go) */
    go(delta?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/pushState) */
    pushState(data: any, title: string, url?: string | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/History/replaceState) */
    replaceState(data: any, title: string, url?: string | null): void;
}

declare var History: {
    prototype: History;
    new(): History;
    isInstance(obj): obj is History;
};

/**
 * This IndexedDB API interface represents a cursor for traversing or iterating over multiple records in a database.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor)
 */
interface IDBCursor {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/direction) */
    readonly direction: IDBCursorDirection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/key) */
    readonly key: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/primaryKey) */
    readonly primaryKey: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/request) */
    readonly request: IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/source) */
    readonly source: IDBObjectStore | IDBIndex;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/advance) */
    advance(count: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/continue) */
    continue(key?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/continuePrimaryKey) */
    continuePrimaryKey(key: any, primaryKey: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/delete) */
    delete(): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursor/update) */
    update(value: any): IDBRequest;
}

declare var IDBCursor: {
    prototype: IDBCursor;
    new(): IDBCursor;
    isInstance(obj): obj is IDBCursor;
};

/**
 * This IndexedDB API interface represents a cursor for traversing or iterating over multiple records in a database. It is the same as the IDBCursor, except that it includes the value property.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursorWithValue)
 */
interface IDBCursorWithValue extends IDBCursor {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBCursorWithValue/value) */
    readonly value: any;
}

declare var IDBCursorWithValue: {
    prototype: IDBCursorWithValue;
    new(): IDBCursorWithValue;
    isInstance(obj): obj is IDBCursorWithValue;
};

interface IDBDatabaseEventMap {
    "abort": Event;
    "close": Event;
    "error": ErrorEvent;
    "versionchange": Event;
}

/**
 * This IndexedDB API interface provides a connection to a database; you can use an IDBDatabase object to open a transaction on your database then create, manipulate, and delete objects (data) in that database. The interface provides the only way to get and manage versions of the database.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase)
 */
interface IDBDatabase extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/objectStoreNames) */
    readonly objectStoreNames: DOMStringList;
    onabort: ((this: IDBDatabase, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/close_event) */
    onclose: ((this: IDBDatabase, ev: Event) => any) | null;
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/versionchange_event) */
    onversionchange: ((this: IDBDatabase, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/version) */
    readonly version: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/createObjectStore) */
    createObjectStore(name: string, options?: IDBObjectStoreParameters): IDBObjectStore;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/deleteObjectStore) */
    deleteObjectStore(name: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBDatabase/transaction) */
    transaction(storeNames: string | string[], mode?: IDBTransactionMode): IDBTransaction;
    addEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof IDBDatabaseEventMap>(type: K, listener: (this: IDBDatabase, ev: IDBDatabaseEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var IDBDatabase: {
    prototype: IDBDatabase;
    new(): IDBDatabase;
    isInstance(obj): obj is IDBDatabase;
};

/**
 * In the following code snippet, we make a request to open a database, and include handlers for the success and error cases. For a full working example, see our To-do Notifications app (view example live.)
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBFactory)
 */
interface IDBFactory {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBFactory/cmp) */
    cmp(first: any, second: any): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBFactory/deleteDatabase) */
    deleteDatabase(name: string, options?: IDBOpenDBOptions): IDBOpenDBRequest;
    deleteForPrincipal(principal: Principal, name: string, options?: IDBOpenDBOptions): IDBOpenDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBFactory/open) */
    open(name: string, version: number): IDBOpenDBRequest;
    open(name: string, options?: IDBOpenDBOptions): IDBOpenDBRequest;
    openForPrincipal(principal: Principal, name: string, version: number): IDBOpenDBRequest;
    openForPrincipal(principal: Principal, name: string, options?: IDBOpenDBOptions): IDBOpenDBRequest;
}

declare var IDBFactory: {
    prototype: IDBFactory;
    new(): IDBFactory;
    isInstance(obj): obj is IDBFactory;
};

/**
 * IDBIndex interface of the IndexedDB API provides asynchronous access to an index in a database. An index is a kind of object store for looking up records in another object store, called the referenced object store. You use this interface to retrieve data.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex)
 */
interface IDBIndex {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/isAutoLocale) */
    readonly isAutoLocale: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/keyPath) */
    readonly keyPath: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/locale) */
    readonly locale: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/multiEntry) */
    readonly multiEntry: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/objectStore) */
    readonly objectStore: IDBObjectStore;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/unique) */
    readonly unique: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/count) */
    count(query?: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/get) */
    get(query: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/getAll) */
    getAll(query?: any, count?: number): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/getAllKeys) */
    getAllKeys(query?: any, count?: number): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/getKey) */
    getKey(query: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/openCursor) */
    openCursor(query?: any, direction?: IDBCursorDirection): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBIndex/openKeyCursor) */
    openKeyCursor(query?: any, direction?: IDBCursorDirection): IDBRequest;
}

declare var IDBIndex: {
    prototype: IDBIndex;
    new(): IDBIndex;
    isInstance(obj): obj is IDBIndex;
};

/**
 * A key range can be a single value or a range with upper and lower bounds or endpoints. If the key range has both upper and lower bounds, then it is bounded; if it has no bounds, it is unbounded. A bounded key range can either be open (the endpoints are excluded) or closed (the endpoints are included). To retrieve all keys within a certain range, you can use the following code constructs:
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange)
 */
interface IDBKeyRange {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/lower) */
    readonly lower: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/lowerOpen) */
    readonly lowerOpen: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/upper) */
    readonly upper: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/upperOpen) */
    readonly upperOpen: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/includes) */
    includes(key: any): boolean;
}

declare var IDBKeyRange: {
    prototype: IDBKeyRange;
    new(): IDBKeyRange;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/bound_static) */
    bound(lower: any, upper: any, lowerOpen?: boolean, upperOpen?: boolean): IDBKeyRange;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/lowerBound_static) */
    lowerBound(lower: any, open?: boolean): IDBKeyRange;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/only_static) */
    only(value: any): IDBKeyRange;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBKeyRange/upperBound_static) */
    upperBound(upper: any, open?: boolean): IDBKeyRange;
    isInstance(obj): obj is IDBKeyRange;
};

/**
 * This example shows a variety of different uses of object stores, from updating the data structure with IDBObjectStore.createIndex inside an onupgradeneeded function, to adding a new item to our object store with IDBObjectStore.add. For a full working example, see our To-do Notifications app (view example live.)
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore)
 */
interface IDBObjectStore {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/autoIncrement) */
    readonly autoIncrement: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/indexNames) */
    readonly indexNames: DOMStringList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/keyPath) */
    readonly keyPath: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/transaction) */
    readonly transaction: IDBTransaction;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/add) */
    add(value: any, key?: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/clear) */
    clear(): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/count) */
    count(key?: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/createIndex) */
    createIndex(name: string, keyPath: string | string[], optionalParameters?: IDBIndexParameters): IDBIndex;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/delete) */
    delete(key: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/deleteIndex) */
    deleteIndex(indexName: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/get) */
    get(key: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/getAll) */
    getAll(query?: any, count?: number): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/getAllKeys) */
    getAllKeys(query?: any, count?: number): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/getKey) */
    getKey(key: any): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/index) */
    index(name: string): IDBIndex;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/openCursor) */
    openCursor(range?: any, direction?: IDBCursorDirection): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/openKeyCursor) */
    openKeyCursor(query?: any, direction?: IDBCursorDirection): IDBRequest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBObjectStore/put) */
    put(value: any, key?: any): IDBRequest;
}

declare var IDBObjectStore: {
    prototype: IDBObjectStore;
    new(): IDBObjectStore;
    isInstance(obj): obj is IDBObjectStore;
};

interface IDBOpenDBRequestEventMap extends IDBRequestEventMap {
    "blocked": Event;
    "upgradeneeded": Event;
}

/**
 * Also inherits methods from its parents IDBRequest and EventTarget.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBOpenDBRequest)
 */
interface IDBOpenDBRequest extends IDBRequest {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBOpenDBRequest/blocked_event) */
    onblocked: ((this: IDBOpenDBRequest, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBOpenDBRequest/upgradeneeded_event) */
    onupgradeneeded: ((this: IDBOpenDBRequest, ev: Event) => any) | null;
    addEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof IDBOpenDBRequestEventMap>(type: K, listener: (this: IDBOpenDBRequest, ev: IDBOpenDBRequestEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var IDBOpenDBRequest: {
    prototype: IDBOpenDBRequest;
    new(): IDBOpenDBRequest;
    isInstance(obj): obj is IDBOpenDBRequest;
};

interface IDBRequestEventMap {
    "error": ErrorEvent;
    "success": Event;
}

/**
 * The request object does not initially contain any information about the result of the operation, but once information becomes available, an event is fired on the request, and the information becomes available through the properties of the IDBRequest instance.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest)
 */
interface IDBRequest extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/error) */
    "error": ErrorEvent;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/success_event) */
    onsuccess: ((this: IDBRequest, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/readyState) */
    readonly readyState: IDBRequestReadyState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/result) */
    readonly result: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/source) */
    readonly source: IDBObjectStore | IDBIndex | IDBCursor | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBRequest/transaction) */
    readonly transaction: IDBTransaction | null;
    addEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof IDBRequestEventMap>(type: K, listener: (this: IDBRequest, ev: IDBRequestEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var IDBRequest: {
    prototype: IDBRequest;
    new(): IDBRequest;
    isInstance(obj): obj is IDBRequest;
};

interface IDBTransactionEventMap {
    "abort": Event;
    "complete": Event;
    "error": ErrorEvent;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction) */
interface IDBTransaction extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/db) */
    readonly db: IDBDatabase;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/error) */
    "error": ErrorEvent;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/mode) */
    readonly mode: IDBTransactionMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/objectStoreNames) */
    readonly objectStoreNames: DOMStringList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/abort_event) */
    onabort: ((this: IDBTransaction, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/complete_event) */
    oncomplete: ((this: IDBTransaction, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/abort) */
    abort(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/commit) */
    commit(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBTransaction/objectStore) */
    objectStore(name: string): IDBObjectStore;
    addEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof IDBTransactionEventMap>(type: K, listener: (this: IDBTransaction, ev: IDBTransactionEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var IDBTransaction: {
    prototype: IDBTransaction;
    new(): IDBTransaction;
    isInstance(obj): obj is IDBTransaction;
};

/**
 * This IndexedDB API interface indicates that the version of the database has changed, as the result of an IDBOpenDBRequest.onupgradeneeded event handler function.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent)
 */
interface IDBVersionChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/newVersion) */
    readonly newVersion: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IDBVersionChangeEvent/oldVersion) */
    readonly oldVersion: number;
}

declare var IDBVersionChangeEvent: {
    prototype: IDBVersionChangeEvent;
    new(type: string, eventInitDict?: IDBVersionChangeEventInit): IDBVersionChangeEvent;
    isInstance(obj): obj is IDBVersionChangeEvent;
};

/**
 * The IIRFilterNode interface of the Web Audio API is a AudioNode processor which implements a general infinite impulse response (IIR)  filter; this type of filter can be used to implement tone control devices and graphic equalizers as well. It lets the parameters of the filter response be specified, so that it can be tuned as needed.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IIRFilterNode)
 */
interface IIRFilterNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IIRFilterNode/getFrequencyResponse) */
    getFrequencyResponse(frequencyHz: Float32Array, magResponse: Float32Array, phaseResponse: Float32Array): void;
}

declare var IIRFilterNode: {
    prototype: IIRFilterNode;
    new(context: BaseAudioContext, options: IIRFilterOptions): IIRFilterNode;
    isInstance(obj): obj is IIRFilterNode;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IdentityCredential)
 */
interface IdentityCredential extends Credential {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IdentityCredential/token) */
    readonly token: string | null;
}

declare var IdentityCredential: {
    prototype: IdentityCredential;
    new(): IdentityCredential;
    logoutRPs(logoutRequests: IdentityCredentialLogoutRPsRequest[]): Promise<void>;
    isInstance(obj): obj is IdentityCredential;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IdleDeadline) */
interface IdleDeadline {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IdleDeadline/didTimeout) */
    readonly didTimeout: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IdleDeadline/timeRemaining) */
    timeRemaining(): DOMHighResTimeStamp;
}

declare var IdleDeadline: {
    prototype: IdleDeadline;
    new(): IdleDeadline;
    isInstance(obj): obj is IdleDeadline;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmap) */
interface ImageBitmap {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmap/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmap/width) */
    readonly width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmap/close) */
    close(): void;
}

declare var ImageBitmap: {
    prototype: ImageBitmap;
    new(): ImageBitmap;
    isInstance(obj): obj is ImageBitmap;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext) */
interface ImageBitmapRenderingContext {
    readonly canvas: CanvasSource | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext/transferFromImageBitmap) */
    transferFromImageBitmap(bitmap: ImageBitmap | null): void;
    /**
     * @deprecated This is a legacy alias of `transferFromImageBitmap`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageBitmapRenderingContext/transferFromImageBitmap)
     */
    transferImageBitmap(bitmap: ImageBitmap): void;
}

declare var ImageBitmapRenderingContext: {
    prototype: ImageBitmapRenderingContext;
    new(): ImageBitmapRenderingContext;
    isInstance(obj): obj is ImageBitmapRenderingContext;
};

interface ImageCaptureEventMap {
    "error": ErrorEvent;
    "photo": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageCapture) */
interface ImageCapture extends EventTarget {
    onerror: OnErrorEventHandler;
    onphoto: ((this: ImageCapture, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `track`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageCapture/track)
     */
    readonly videoStreamTrack: MediaStreamTrack;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageCapture/takePhoto) */
    takePhoto(): void;
    addEventListener<K extends keyof ImageCaptureEventMap>(type: K, listener: (this: ImageCapture, ev: ImageCaptureEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ImageCaptureEventMap>(type: K, listener: (this: ImageCapture, ev: ImageCaptureEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ImageCapture: {
    prototype: ImageCapture;
    new(track: MediaStreamTrack): ImageCapture;
    isInstance(obj): obj is ImageCapture;
};

interface ImageCaptureError {
    readonly code: number;
    readonly message: string;
    readonly FRAME_GRAB_ERROR: 1;
    readonly SETTINGS_ERROR: 2;
    readonly PHOTO_ERROR: 3;
    readonly ERROR_UNKNOWN: 4;
}

interface ImageCaptureErrorEvent extends Event {
    readonly imageCaptureError: ImageCaptureError | null;
}

declare var ImageCaptureErrorEvent: {
    prototype: ImageCaptureErrorEvent;
    new(type: string, imageCaptureErrorInitDict?: ImageCaptureErrorEventInit): ImageCaptureErrorEvent;
    isInstance(obj): obj is ImageCaptureErrorEvent;
};

/**
 * The underlying pixel data of an area of a <canvas> element. It is created using the ImageData() constructor or creator methods on the CanvasRenderingContext2D object associated with a canvas: createImageData() and getImageData(). It can also be used to set a part of the canvas by using putImageData().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageData)
 */
interface ImageData {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageData/data) */
    readonly data: Uint8ClampedArray;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageData/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ImageData/width) */
    readonly width: number;
}

declare var ImageData: {
    prototype: ImageData;
    new(sw: number, sh: number): ImageData;
    new(data: Uint8ClampedArray, sw: number, sh?: number): ImageData;
    isInstance(obj): obj is ImageData;
};

interface ImageDocument extends HTMLDocument {
    readonly imageIsOverflowing: boolean;
    readonly imageIsResized: boolean;
    restoreImage(): void;
    shrinkToFit(): void;
    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: ImageDocument, ev: DocumentEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: ImageDocument, ev: DocumentEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ImageDocument: {
    prototype: ImageDocument;
    new(): ImageDocument;
    isInstance(obj): obj is ImageDocument;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent) */
interface InputEvent extends UIEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent/data) */
    readonly data: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent/dataTransfer) */
    readonly dataTransfer: DataTransfer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent/inputType) */
    readonly inputType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent/isComposing) */
    readonly isComposing: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/InputEvent/getTargetRanges) */
    getTargetRanges(): StaticRange[];
}

declare var InputEvent: {
    prototype: InputEvent;
    new(type: string, eventInitDict?: InputEventInit): InputEvent;
    isInstance(obj): obj is InputEvent;
};

interface InspectorFontFace {
    readonly CSSFamilyName: string;
    readonly CSSGeneric: string;
    readonly URI: string;
    readonly format: string;
    readonly fromFontGroup: boolean;
    readonly fromLanguagePrefs: boolean;
    readonly fromSystemFallback: boolean;
    readonly localName: string;
    readonly metadata: string;
    readonly name: string;
    readonly ranges: Range[];
    readonly rule: CSSFontFaceRule | null;
    readonly srcIndex: number;
    getFeatures(): InspectorFontFeature[];
    getVariationAxes(): InspectorVariationAxis[];
    getVariationInstances(): InspectorVariationInstance[];
}

declare var InspectorFontFace: {
    prototype: InspectorFontFace;
    new(): InspectorFontFace;
    isInstance(obj): obj is InspectorFontFace;
};

interface InstallTriggerImpl {
    enabled(): boolean;
    install(installs: Record<string, string | InstallTriggerData>, callback?: InstallTriggerCallback): boolean;
    installChrome(type: number, url: string, skin: string): boolean;
    startSoftwareUpdate(url: string, flags?: number): boolean;
    updateEnabled(): boolean;
    readonly SKIN: 1;
    readonly LOCALE: 2;
    readonly CONTENT: 4;
    readonly PACKAGE: 7;
}

declare var InstallTriggerImpl: {
    prototype: InstallTriggerImpl;
    new(): InstallTriggerImpl;
    readonly SKIN: 1;
    readonly LOCALE: 2;
    readonly CONTENT: 4;
    readonly PACKAGE: 7;
    isInstance(obj): obj is InstallTriggerImpl;
};

/**
 * provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a top-level document's viewport.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver)
 */
interface IntersectionObserver {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/root) */
    readonly root: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/rootMargin) */
    readonly rootMargin: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/thresholds) */
    readonly thresholds: number[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/disconnect) */
    disconnect(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/observe) */
    observe(target: Element): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/takeRecords) */
    takeRecords(): IntersectionObserverEntry[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/unobserve) */
    unobserve(target: Element): void;
}

declare var IntersectionObserver: {
    prototype: IntersectionObserver;
    new(intersectionCallback: IntersectionCallback, options?: IntersectionObserverInit): IntersectionObserver;
    isInstance(obj): obj is IntersectionObserver;
};

/**
 * This Intersection Observer API interface describes the intersection between the target element and its root container at a specific moment of transition.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry)
 */
interface IntersectionObserverEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/boundingClientRect) */
    readonly boundingClientRect: DOMRectReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/intersectionRatio) */
    readonly intersectionRatio: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/intersectionRect) */
    readonly intersectionRect: DOMRectReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/isIntersecting) */
    readonly isIntersecting: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/rootBounds) */
    readonly rootBounds: DOMRectReadOnly | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/target) */
    readonly target: Element;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserverEntry/time) */
    readonly time: DOMHighResTimeStamp;
}

declare var IntersectionObserverEntry: {
    prototype: IntersectionObserverEntry;
    new(): IntersectionObserverEntry;
    isInstance(obj): obj is IntersectionObserverEntry;
};

interface IntlUtils {
    getDisplayNames(locales: string[], options?: DisplayNameOptions): DisplayNameResult;
    isAppLocaleRTL(): boolean;
}

interface InvokeEvent extends Event {
    readonly action: string;
    readonly invoker: Element | null;
}

declare var InvokeEvent: {
    prototype: InvokeEvent;
    new(type: string, eventInitDict?: InvokeEventInit): InvokeEvent;
    isInstance(obj): obj is InvokeEvent;
};

interface InvokerElement {
    invokeAction: string;
    invokeTargetElement: Element | null;
}

interface JSActor {
    readonly name: UTF8String;
    sendAsyncMessage(messageName: string, obj?: any, transferables?: any): void;
    sendQuery(messageName: string, obj?: any): Promise<any>;
}

interface JSProcessActorChild extends JSActor {
    readonly manager: nsIDOMProcessChild;
}

declare var JSProcessActorChild: {
    prototype: JSProcessActorChild;
    new(): JSProcessActorChild;
    isInstance(obj): obj is JSProcessActorChild;
};

interface JSProcessActorParent extends JSActor {
    readonly manager: nsIDOMProcessParent;
}

declare var JSProcessActorParent: {
    prototype: JSProcessActorParent;
    new(): JSProcessActorParent;
    isInstance(obj): obj is JSProcessActorParent;
};

interface JSWindowActorChild extends JSActor {
    readonly browsingContext: BrowsingContext | null;
    readonly contentWindow: WindowProxy | null;
    readonly docShell: nsIDocShell | null;
    readonly document: Document | null;
    readonly manager: WindowGlobalChild | null;
    readonly windowContext: WindowContext | null;
}

declare var JSWindowActorChild: {
    prototype: JSWindowActorChild;
    new(): JSWindowActorChild;
    isInstance(obj): obj is JSWindowActorChild;
};

interface JSWindowActorParent extends JSActor {
    readonly browsingContext: CanonicalBrowsingContext | null;
    readonly manager: WindowGlobalParent | null;
    readonly windowContext: WindowContext | null;
}

declare var JSWindowActorParent: {
    prototype: JSWindowActorParent;
    new(): JSWindowActorParent;
    isInstance(obj): obj is JSWindowActorParent;
};

interface KeyEvent extends KeyEventMixin {
}

declare var KeyEvent: {
    prototype: KeyEvent;
    new(): KeyEvent;
    readonly DOM_VK_CANCEL: 0x03;
    readonly DOM_VK_HELP: 0x06;
    readonly DOM_VK_BACK_SPACE: 0x08;
    readonly DOM_VK_TAB: 0x09;
    readonly DOM_VK_CLEAR: 0x0C;
    readonly DOM_VK_RETURN: 0x0D;
    readonly DOM_VK_SHIFT: 0x10;
    readonly DOM_VK_CONTROL: 0x11;
    readonly DOM_VK_ALT: 0x12;
    readonly DOM_VK_PAUSE: 0x13;
    readonly DOM_VK_CAPS_LOCK: 0x14;
    readonly DOM_VK_KANA: 0x15;
    readonly DOM_VK_HANGUL: 0x15;
    readonly DOM_VK_EISU: 0x16;
    readonly DOM_VK_JUNJA: 0x17;
    readonly DOM_VK_FINAL: 0x18;
    readonly DOM_VK_HANJA: 0x19;
    readonly DOM_VK_KANJI: 0x19;
    readonly DOM_VK_ESCAPE: 0x1B;
    readonly DOM_VK_CONVERT: 0x1C;
    readonly DOM_VK_NONCONVERT: 0x1D;
    readonly DOM_VK_ACCEPT: 0x1E;
    readonly DOM_VK_MODECHANGE: 0x1F;
    readonly DOM_VK_SPACE: 0x20;
    readonly DOM_VK_PAGE_UP: 0x21;
    readonly DOM_VK_PAGE_DOWN: 0x22;
    readonly DOM_VK_END: 0x23;
    readonly DOM_VK_HOME: 0x24;
    readonly DOM_VK_LEFT: 0x25;
    readonly DOM_VK_UP: 0x26;
    readonly DOM_VK_RIGHT: 0x27;
    readonly DOM_VK_DOWN: 0x28;
    readonly DOM_VK_SELECT: 0x29;
    readonly DOM_VK_PRINT: 0x2A;
    readonly DOM_VK_EXECUTE: 0x2B;
    readonly DOM_VK_PRINTSCREEN: 0x2C;
    readonly DOM_VK_INSERT: 0x2D;
    readonly DOM_VK_DELETE: 0x2E;
    readonly DOM_VK_0: 0x30;
    readonly DOM_VK_1: 0x31;
    readonly DOM_VK_2: 0x32;
    readonly DOM_VK_3: 0x33;
    readonly DOM_VK_4: 0x34;
    readonly DOM_VK_5: 0x35;
    readonly DOM_VK_6: 0x36;
    readonly DOM_VK_7: 0x37;
    readonly DOM_VK_8: 0x38;
    readonly DOM_VK_9: 0x39;
    readonly DOM_VK_COLON: 0x3A;
    readonly DOM_VK_SEMICOLON: 0x3B;
    readonly DOM_VK_LESS_THAN: 0x3C;
    readonly DOM_VK_EQUALS: 0x3D;
    readonly DOM_VK_GREATER_THAN: 0x3E;
    readonly DOM_VK_QUESTION_MARK: 0x3F;
    readonly DOM_VK_AT: 0x40;
    readonly DOM_VK_A: 0x41;
    readonly DOM_VK_B: 0x42;
    readonly DOM_VK_C: 0x43;
    readonly DOM_VK_D: 0x44;
    readonly DOM_VK_E: 0x45;
    readonly DOM_VK_F: 0x46;
    readonly DOM_VK_G: 0x47;
    readonly DOM_VK_H: 0x48;
    readonly DOM_VK_I: 0x49;
    readonly DOM_VK_J: 0x4A;
    readonly DOM_VK_K: 0x4B;
    readonly DOM_VK_L: 0x4C;
    readonly DOM_VK_M: 0x4D;
    readonly DOM_VK_N: 0x4E;
    readonly DOM_VK_O: 0x4F;
    readonly DOM_VK_P: 0x50;
    readonly DOM_VK_Q: 0x51;
    readonly DOM_VK_R: 0x52;
    readonly DOM_VK_S: 0x53;
    readonly DOM_VK_T: 0x54;
    readonly DOM_VK_U: 0x55;
    readonly DOM_VK_V: 0x56;
    readonly DOM_VK_W: 0x57;
    readonly DOM_VK_X: 0x58;
    readonly DOM_VK_Y: 0x59;
    readonly DOM_VK_Z: 0x5A;
    readonly DOM_VK_WIN: 0x5B;
    readonly DOM_VK_CONTEXT_MENU: 0x5D;
    readonly DOM_VK_SLEEP: 0x5F;
    readonly DOM_VK_NUMPAD0: 0x60;
    readonly DOM_VK_NUMPAD1: 0x61;
    readonly DOM_VK_NUMPAD2: 0x62;
    readonly DOM_VK_NUMPAD3: 0x63;
    readonly DOM_VK_NUMPAD4: 0x64;
    readonly DOM_VK_NUMPAD5: 0x65;
    readonly DOM_VK_NUMPAD6: 0x66;
    readonly DOM_VK_NUMPAD7: 0x67;
    readonly DOM_VK_NUMPAD8: 0x68;
    readonly DOM_VK_NUMPAD9: 0x69;
    readonly DOM_VK_MULTIPLY: 0x6A;
    readonly DOM_VK_ADD: 0x6B;
    readonly DOM_VK_SEPARATOR: 0x6C;
    readonly DOM_VK_SUBTRACT: 0x6D;
    readonly DOM_VK_DECIMAL: 0x6E;
    readonly DOM_VK_DIVIDE: 0x6F;
    readonly DOM_VK_F1: 0x70;
    readonly DOM_VK_F2: 0x71;
    readonly DOM_VK_F3: 0x72;
    readonly DOM_VK_F4: 0x73;
    readonly DOM_VK_F5: 0x74;
    readonly DOM_VK_F6: 0x75;
    readonly DOM_VK_F7: 0x76;
    readonly DOM_VK_F8: 0x77;
    readonly DOM_VK_F9: 0x78;
    readonly DOM_VK_F10: 0x79;
    readonly DOM_VK_F11: 0x7A;
    readonly DOM_VK_F12: 0x7B;
    readonly DOM_VK_F13: 0x7C;
    readonly DOM_VK_F14: 0x7D;
    readonly DOM_VK_F15: 0x7E;
    readonly DOM_VK_F16: 0x7F;
    readonly DOM_VK_F17: 0x80;
    readonly DOM_VK_F18: 0x81;
    readonly DOM_VK_F19: 0x82;
    readonly DOM_VK_F20: 0x83;
    readonly DOM_VK_F21: 0x84;
    readonly DOM_VK_F22: 0x85;
    readonly DOM_VK_F23: 0x86;
    readonly DOM_VK_F24: 0x87;
    readonly DOM_VK_NUM_LOCK: 0x90;
    readonly DOM_VK_SCROLL_LOCK: 0x91;
    readonly DOM_VK_WIN_OEM_FJ_JISHO: 0x92;
    readonly DOM_VK_WIN_OEM_FJ_MASSHOU: 0x93;
    readonly DOM_VK_WIN_OEM_FJ_TOUROKU: 0x94;
    readonly DOM_VK_WIN_OEM_FJ_LOYA: 0x95;
    readonly DOM_VK_WIN_OEM_FJ_ROYA: 0x96;
    readonly DOM_VK_CIRCUMFLEX: 0xA0;
    readonly DOM_VK_EXCLAMATION: 0xA1;
    readonly DOM_VK_DOUBLE_QUOTE: 0xA2;
    readonly DOM_VK_HASH: 0xA3;
    readonly DOM_VK_DOLLAR: 0xA4;
    readonly DOM_VK_PERCENT: 0xA5;
    readonly DOM_VK_AMPERSAND: 0xA6;
    readonly DOM_VK_UNDERSCORE: 0xA7;
    readonly DOM_VK_OPEN_PAREN: 0xA8;
    readonly DOM_VK_CLOSE_PAREN: 0xA9;
    readonly DOM_VK_ASTERISK: 0xAA;
    readonly DOM_VK_PLUS: 0xAB;
    readonly DOM_VK_PIPE: 0xAC;
    readonly DOM_VK_HYPHEN_MINUS: 0xAD;
    readonly DOM_VK_OPEN_CURLY_BRACKET: 0xAE;
    readonly DOM_VK_CLOSE_CURLY_BRACKET: 0xAF;
    readonly DOM_VK_TILDE: 0xB0;
    readonly DOM_VK_VOLUME_MUTE: 0xB5;
    readonly DOM_VK_VOLUME_DOWN: 0xB6;
    readonly DOM_VK_VOLUME_UP: 0xB7;
    readonly DOM_VK_COMMA: 0xBC;
    readonly DOM_VK_PERIOD: 0xBE;
    readonly DOM_VK_SLASH: 0xBF;
    readonly DOM_VK_BACK_QUOTE: 0xC0;
    readonly DOM_VK_OPEN_BRACKET: 0xDB;
    readonly DOM_VK_BACK_SLASH: 0xDC;
    readonly DOM_VK_CLOSE_BRACKET: 0xDD;
    readonly DOM_VK_QUOTE: 0xDE;
    readonly DOM_VK_META: 0xE0;
    readonly DOM_VK_ALTGR: 0xE1;
    readonly DOM_VK_WIN_ICO_HELP: 0xE3;
    readonly DOM_VK_WIN_ICO_00: 0xE4;
    readonly DOM_VK_PROCESSKEY: 0xE5;
    readonly DOM_VK_WIN_ICO_CLEAR: 0xE6;
    readonly DOM_VK_WIN_OEM_RESET: 0xE9;
    readonly DOM_VK_WIN_OEM_JUMP: 0xEA;
    readonly DOM_VK_WIN_OEM_PA1: 0xEB;
    readonly DOM_VK_WIN_OEM_PA2: 0xEC;
    readonly DOM_VK_WIN_OEM_PA3: 0xED;
    readonly DOM_VK_WIN_OEM_WSCTRL: 0xEE;
    readonly DOM_VK_WIN_OEM_CUSEL: 0xEF;
    readonly DOM_VK_WIN_OEM_ATTN: 0xF0;
    readonly DOM_VK_WIN_OEM_FINISH: 0xF1;
    readonly DOM_VK_WIN_OEM_COPY: 0xF2;
    readonly DOM_VK_WIN_OEM_AUTO: 0xF3;
    readonly DOM_VK_WIN_OEM_ENLW: 0xF4;
    readonly DOM_VK_WIN_OEM_BACKTAB: 0xF5;
    readonly DOM_VK_ATTN: 0xF6;
    readonly DOM_VK_CRSEL: 0xF7;
    readonly DOM_VK_EXSEL: 0xF8;
    readonly DOM_VK_EREOF: 0xF9;
    readonly DOM_VK_PLAY: 0xFA;
    readonly DOM_VK_ZOOM: 0xFB;
    readonly DOM_VK_PA1: 0xFD;
    readonly DOM_VK_WIN_OEM_CLEAR: 0xFE;
    isInstance(obj): obj is KeyEvent;
};

interface KeyEventMixin {
    initKeyEvent(type: string, canBubble?: boolean, cancelable?: boolean, view?: Window | null, ctrlKey?: boolean, altKey?: boolean, shiftKey?: boolean, metaKey?: boolean, keyCode?: number, charCode?: number): void;
    readonly DOM_VK_CANCEL: 0x03;
    readonly DOM_VK_HELP: 0x06;
    readonly DOM_VK_BACK_SPACE: 0x08;
    readonly DOM_VK_TAB: 0x09;
    readonly DOM_VK_CLEAR: 0x0C;
    readonly DOM_VK_RETURN: 0x0D;
    readonly DOM_VK_SHIFT: 0x10;
    readonly DOM_VK_CONTROL: 0x11;
    readonly DOM_VK_ALT: 0x12;
    readonly DOM_VK_PAUSE: 0x13;
    readonly DOM_VK_CAPS_LOCK: 0x14;
    readonly DOM_VK_KANA: 0x15;
    readonly DOM_VK_HANGUL: 0x15;
    readonly DOM_VK_EISU: 0x16;
    readonly DOM_VK_JUNJA: 0x17;
    readonly DOM_VK_FINAL: 0x18;
    readonly DOM_VK_HANJA: 0x19;
    readonly DOM_VK_KANJI: 0x19;
    readonly DOM_VK_ESCAPE: 0x1B;
    readonly DOM_VK_CONVERT: 0x1C;
    readonly DOM_VK_NONCONVERT: 0x1D;
    readonly DOM_VK_ACCEPT: 0x1E;
    readonly DOM_VK_MODECHANGE: 0x1F;
    readonly DOM_VK_SPACE: 0x20;
    readonly DOM_VK_PAGE_UP: 0x21;
    readonly DOM_VK_PAGE_DOWN: 0x22;
    readonly DOM_VK_END: 0x23;
    readonly DOM_VK_HOME: 0x24;
    readonly DOM_VK_LEFT: 0x25;
    readonly DOM_VK_UP: 0x26;
    readonly DOM_VK_RIGHT: 0x27;
    readonly DOM_VK_DOWN: 0x28;
    readonly DOM_VK_SELECT: 0x29;
    readonly DOM_VK_PRINT: 0x2A;
    readonly DOM_VK_EXECUTE: 0x2B;
    readonly DOM_VK_PRINTSCREEN: 0x2C;
    readonly DOM_VK_INSERT: 0x2D;
    readonly DOM_VK_DELETE: 0x2E;
    readonly DOM_VK_0: 0x30;
    readonly DOM_VK_1: 0x31;
    readonly DOM_VK_2: 0x32;
    readonly DOM_VK_3: 0x33;
    readonly DOM_VK_4: 0x34;
    readonly DOM_VK_5: 0x35;
    readonly DOM_VK_6: 0x36;
    readonly DOM_VK_7: 0x37;
    readonly DOM_VK_8: 0x38;
    readonly DOM_VK_9: 0x39;
    readonly DOM_VK_COLON: 0x3A;
    readonly DOM_VK_SEMICOLON: 0x3B;
    readonly DOM_VK_LESS_THAN: 0x3C;
    readonly DOM_VK_EQUALS: 0x3D;
    readonly DOM_VK_GREATER_THAN: 0x3E;
    readonly DOM_VK_QUESTION_MARK: 0x3F;
    readonly DOM_VK_AT: 0x40;
    readonly DOM_VK_A: 0x41;
    readonly DOM_VK_B: 0x42;
    readonly DOM_VK_C: 0x43;
    readonly DOM_VK_D: 0x44;
    readonly DOM_VK_E: 0x45;
    readonly DOM_VK_F: 0x46;
    readonly DOM_VK_G: 0x47;
    readonly DOM_VK_H: 0x48;
    readonly DOM_VK_I: 0x49;
    readonly DOM_VK_J: 0x4A;
    readonly DOM_VK_K: 0x4B;
    readonly DOM_VK_L: 0x4C;
    readonly DOM_VK_M: 0x4D;
    readonly DOM_VK_N: 0x4E;
    readonly DOM_VK_O: 0x4F;
    readonly DOM_VK_P: 0x50;
    readonly DOM_VK_Q: 0x51;
    readonly DOM_VK_R: 0x52;
    readonly DOM_VK_S: 0x53;
    readonly DOM_VK_T: 0x54;
    readonly DOM_VK_U: 0x55;
    readonly DOM_VK_V: 0x56;
    readonly DOM_VK_W: 0x57;
    readonly DOM_VK_X: 0x58;
    readonly DOM_VK_Y: 0x59;
    readonly DOM_VK_Z: 0x5A;
    readonly DOM_VK_WIN: 0x5B;
    readonly DOM_VK_CONTEXT_MENU: 0x5D;
    readonly DOM_VK_SLEEP: 0x5F;
    readonly DOM_VK_NUMPAD0: 0x60;
    readonly DOM_VK_NUMPAD1: 0x61;
    readonly DOM_VK_NUMPAD2: 0x62;
    readonly DOM_VK_NUMPAD3: 0x63;
    readonly DOM_VK_NUMPAD4: 0x64;
    readonly DOM_VK_NUMPAD5: 0x65;
    readonly DOM_VK_NUMPAD6: 0x66;
    readonly DOM_VK_NUMPAD7: 0x67;
    readonly DOM_VK_NUMPAD8: 0x68;
    readonly DOM_VK_NUMPAD9: 0x69;
    readonly DOM_VK_MULTIPLY: 0x6A;
    readonly DOM_VK_ADD: 0x6B;
    readonly DOM_VK_SEPARATOR: 0x6C;
    readonly DOM_VK_SUBTRACT: 0x6D;
    readonly DOM_VK_DECIMAL: 0x6E;
    readonly DOM_VK_DIVIDE: 0x6F;
    readonly DOM_VK_F1: 0x70;
    readonly DOM_VK_F2: 0x71;
    readonly DOM_VK_F3: 0x72;
    readonly DOM_VK_F4: 0x73;
    readonly DOM_VK_F5: 0x74;
    readonly DOM_VK_F6: 0x75;
    readonly DOM_VK_F7: 0x76;
    readonly DOM_VK_F8: 0x77;
    readonly DOM_VK_F9: 0x78;
    readonly DOM_VK_F10: 0x79;
    readonly DOM_VK_F11: 0x7A;
    readonly DOM_VK_F12: 0x7B;
    readonly DOM_VK_F13: 0x7C;
    readonly DOM_VK_F14: 0x7D;
    readonly DOM_VK_F15: 0x7E;
    readonly DOM_VK_F16: 0x7F;
    readonly DOM_VK_F17: 0x80;
    readonly DOM_VK_F18: 0x81;
    readonly DOM_VK_F19: 0x82;
    readonly DOM_VK_F20: 0x83;
    readonly DOM_VK_F21: 0x84;
    readonly DOM_VK_F22: 0x85;
    readonly DOM_VK_F23: 0x86;
    readonly DOM_VK_F24: 0x87;
    readonly DOM_VK_NUM_LOCK: 0x90;
    readonly DOM_VK_SCROLL_LOCK: 0x91;
    readonly DOM_VK_WIN_OEM_FJ_JISHO: 0x92;
    readonly DOM_VK_WIN_OEM_FJ_MASSHOU: 0x93;
    readonly DOM_VK_WIN_OEM_FJ_TOUROKU: 0x94;
    readonly DOM_VK_WIN_OEM_FJ_LOYA: 0x95;
    readonly DOM_VK_WIN_OEM_FJ_ROYA: 0x96;
    readonly DOM_VK_CIRCUMFLEX: 0xA0;
    readonly DOM_VK_EXCLAMATION: 0xA1;
    readonly DOM_VK_DOUBLE_QUOTE: 0xA2;
    readonly DOM_VK_HASH: 0xA3;
    readonly DOM_VK_DOLLAR: 0xA4;
    readonly DOM_VK_PERCENT: 0xA5;
    readonly DOM_VK_AMPERSAND: 0xA6;
    readonly DOM_VK_UNDERSCORE: 0xA7;
    readonly DOM_VK_OPEN_PAREN: 0xA8;
    readonly DOM_VK_CLOSE_PAREN: 0xA9;
    readonly DOM_VK_ASTERISK: 0xAA;
    readonly DOM_VK_PLUS: 0xAB;
    readonly DOM_VK_PIPE: 0xAC;
    readonly DOM_VK_HYPHEN_MINUS: 0xAD;
    readonly DOM_VK_OPEN_CURLY_BRACKET: 0xAE;
    readonly DOM_VK_CLOSE_CURLY_BRACKET: 0xAF;
    readonly DOM_VK_TILDE: 0xB0;
    readonly DOM_VK_VOLUME_MUTE: 0xB5;
    readonly DOM_VK_VOLUME_DOWN: 0xB6;
    readonly DOM_VK_VOLUME_UP: 0xB7;
    readonly DOM_VK_COMMA: 0xBC;
    readonly DOM_VK_PERIOD: 0xBE;
    readonly DOM_VK_SLASH: 0xBF;
    readonly DOM_VK_BACK_QUOTE: 0xC0;
    readonly DOM_VK_OPEN_BRACKET: 0xDB;
    readonly DOM_VK_BACK_SLASH: 0xDC;
    readonly DOM_VK_CLOSE_BRACKET: 0xDD;
    readonly DOM_VK_QUOTE: 0xDE;
    readonly DOM_VK_META: 0xE0;
    readonly DOM_VK_ALTGR: 0xE1;
    readonly DOM_VK_WIN_ICO_HELP: 0xE3;
    readonly DOM_VK_WIN_ICO_00: 0xE4;
    readonly DOM_VK_PROCESSKEY: 0xE5;
    readonly DOM_VK_WIN_ICO_CLEAR: 0xE6;
    readonly DOM_VK_WIN_OEM_RESET: 0xE9;
    readonly DOM_VK_WIN_OEM_JUMP: 0xEA;
    readonly DOM_VK_WIN_OEM_PA1: 0xEB;
    readonly DOM_VK_WIN_OEM_PA2: 0xEC;
    readonly DOM_VK_WIN_OEM_PA3: 0xED;
    readonly DOM_VK_WIN_OEM_WSCTRL: 0xEE;
    readonly DOM_VK_WIN_OEM_CUSEL: 0xEF;
    readonly DOM_VK_WIN_OEM_ATTN: 0xF0;
    readonly DOM_VK_WIN_OEM_FINISH: 0xF1;
    readonly DOM_VK_WIN_OEM_COPY: 0xF2;
    readonly DOM_VK_WIN_OEM_AUTO: 0xF3;
    readonly DOM_VK_WIN_OEM_ENLW: 0xF4;
    readonly DOM_VK_WIN_OEM_BACKTAB: 0xF5;
    readonly DOM_VK_ATTN: 0xF6;
    readonly DOM_VK_CRSEL: 0xF7;
    readonly DOM_VK_EXSEL: 0xF8;
    readonly DOM_VK_EREOF: 0xF9;
    readonly DOM_VK_PLAY: 0xFA;
    readonly DOM_VK_ZOOM: 0xFB;
    readonly DOM_VK_PA1: 0xFD;
    readonly DOM_VK_WIN_OEM_CLEAR: 0xFE;
}

/**
 * KeyboardEvent objects describe a user interaction with the keyboard; each event describes a single interaction between the user and a key (or combination of a key with modifier keys) on the keyboard.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent)
 */
interface KeyboardEvent extends UIEvent, KeyEventMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/altKey) */
    readonly altKey: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/charCode)
     */
    readonly charCode: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/code) */
    readonly code: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/ctrlKey) */
    readonly ctrlKey: boolean;
    readonly initDict: KeyboardEventInit;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/isComposing) */
    readonly isComposing: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/key) */
    readonly key: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/keyCode)
     */
    readonly keyCode: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/location) */
    readonly location: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/metaKey) */
    readonly metaKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/repeat) */
    readonly repeat: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/shiftKey) */
    readonly shiftKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/getModifierState) */
    getModifierState(key: string): boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyboardEvent/initKeyboardEvent)
     */
    initKeyboardEvent(typeArg: string, bubblesArg?: boolean, cancelableArg?: boolean, viewArg?: Window | null, keyArg?: string, locationArg?: number, ctrlKey?: boolean, altKey?: boolean, shiftKey?: boolean, metaKey?: boolean): void;
    readonly DOM_KEY_LOCATION_STANDARD: 0x00;
    readonly DOM_KEY_LOCATION_LEFT: 0x01;
    readonly DOM_KEY_LOCATION_RIGHT: 0x02;
    readonly DOM_KEY_LOCATION_NUMPAD: 0x03;
}

declare var KeyboardEvent: {
    prototype: KeyboardEvent;
    new(typeArg: string, keyboardEventInitDict?: KeyboardEventInit): KeyboardEvent;
    readonly DOM_KEY_LOCATION_STANDARD: 0x00;
    readonly DOM_KEY_LOCATION_LEFT: 0x01;
    readonly DOM_KEY_LOCATION_RIGHT: 0x02;
    readonly DOM_KEY_LOCATION_NUMPAD: 0x03;
    readonly DOM_VK_CANCEL: 0x03;
    readonly DOM_VK_HELP: 0x06;
    readonly DOM_VK_BACK_SPACE: 0x08;
    readonly DOM_VK_TAB: 0x09;
    readonly DOM_VK_CLEAR: 0x0C;
    readonly DOM_VK_RETURN: 0x0D;
    readonly DOM_VK_SHIFT: 0x10;
    readonly DOM_VK_CONTROL: 0x11;
    readonly DOM_VK_ALT: 0x12;
    readonly DOM_VK_PAUSE: 0x13;
    readonly DOM_VK_CAPS_LOCK: 0x14;
    readonly DOM_VK_KANA: 0x15;
    readonly DOM_VK_HANGUL: 0x15;
    readonly DOM_VK_EISU: 0x16;
    readonly DOM_VK_JUNJA: 0x17;
    readonly DOM_VK_FINAL: 0x18;
    readonly DOM_VK_HANJA: 0x19;
    readonly DOM_VK_KANJI: 0x19;
    readonly DOM_VK_ESCAPE: 0x1B;
    readonly DOM_VK_CONVERT: 0x1C;
    readonly DOM_VK_NONCONVERT: 0x1D;
    readonly DOM_VK_ACCEPT: 0x1E;
    readonly DOM_VK_MODECHANGE: 0x1F;
    readonly DOM_VK_SPACE: 0x20;
    readonly DOM_VK_PAGE_UP: 0x21;
    readonly DOM_VK_PAGE_DOWN: 0x22;
    readonly DOM_VK_END: 0x23;
    readonly DOM_VK_HOME: 0x24;
    readonly DOM_VK_LEFT: 0x25;
    readonly DOM_VK_UP: 0x26;
    readonly DOM_VK_RIGHT: 0x27;
    readonly DOM_VK_DOWN: 0x28;
    readonly DOM_VK_SELECT: 0x29;
    readonly DOM_VK_PRINT: 0x2A;
    readonly DOM_VK_EXECUTE: 0x2B;
    readonly DOM_VK_PRINTSCREEN: 0x2C;
    readonly DOM_VK_INSERT: 0x2D;
    readonly DOM_VK_DELETE: 0x2E;
    readonly DOM_VK_0: 0x30;
    readonly DOM_VK_1: 0x31;
    readonly DOM_VK_2: 0x32;
    readonly DOM_VK_3: 0x33;
    readonly DOM_VK_4: 0x34;
    readonly DOM_VK_5: 0x35;
    readonly DOM_VK_6: 0x36;
    readonly DOM_VK_7: 0x37;
    readonly DOM_VK_8: 0x38;
    readonly DOM_VK_9: 0x39;
    readonly DOM_VK_COLON: 0x3A;
    readonly DOM_VK_SEMICOLON: 0x3B;
    readonly DOM_VK_LESS_THAN: 0x3C;
    readonly DOM_VK_EQUALS: 0x3D;
    readonly DOM_VK_GREATER_THAN: 0x3E;
    readonly DOM_VK_QUESTION_MARK: 0x3F;
    readonly DOM_VK_AT: 0x40;
    readonly DOM_VK_A: 0x41;
    readonly DOM_VK_B: 0x42;
    readonly DOM_VK_C: 0x43;
    readonly DOM_VK_D: 0x44;
    readonly DOM_VK_E: 0x45;
    readonly DOM_VK_F: 0x46;
    readonly DOM_VK_G: 0x47;
    readonly DOM_VK_H: 0x48;
    readonly DOM_VK_I: 0x49;
    readonly DOM_VK_J: 0x4A;
    readonly DOM_VK_K: 0x4B;
    readonly DOM_VK_L: 0x4C;
    readonly DOM_VK_M: 0x4D;
    readonly DOM_VK_N: 0x4E;
    readonly DOM_VK_O: 0x4F;
    readonly DOM_VK_P: 0x50;
    readonly DOM_VK_Q: 0x51;
    readonly DOM_VK_R: 0x52;
    readonly DOM_VK_S: 0x53;
    readonly DOM_VK_T: 0x54;
    readonly DOM_VK_U: 0x55;
    readonly DOM_VK_V: 0x56;
    readonly DOM_VK_W: 0x57;
    readonly DOM_VK_X: 0x58;
    readonly DOM_VK_Y: 0x59;
    readonly DOM_VK_Z: 0x5A;
    readonly DOM_VK_WIN: 0x5B;
    readonly DOM_VK_CONTEXT_MENU: 0x5D;
    readonly DOM_VK_SLEEP: 0x5F;
    readonly DOM_VK_NUMPAD0: 0x60;
    readonly DOM_VK_NUMPAD1: 0x61;
    readonly DOM_VK_NUMPAD2: 0x62;
    readonly DOM_VK_NUMPAD3: 0x63;
    readonly DOM_VK_NUMPAD4: 0x64;
    readonly DOM_VK_NUMPAD5: 0x65;
    readonly DOM_VK_NUMPAD6: 0x66;
    readonly DOM_VK_NUMPAD7: 0x67;
    readonly DOM_VK_NUMPAD8: 0x68;
    readonly DOM_VK_NUMPAD9: 0x69;
    readonly DOM_VK_MULTIPLY: 0x6A;
    readonly DOM_VK_ADD: 0x6B;
    readonly DOM_VK_SEPARATOR: 0x6C;
    readonly DOM_VK_SUBTRACT: 0x6D;
    readonly DOM_VK_DECIMAL: 0x6E;
    readonly DOM_VK_DIVIDE: 0x6F;
    readonly DOM_VK_F1: 0x70;
    readonly DOM_VK_F2: 0x71;
    readonly DOM_VK_F3: 0x72;
    readonly DOM_VK_F4: 0x73;
    readonly DOM_VK_F5: 0x74;
    readonly DOM_VK_F6: 0x75;
    readonly DOM_VK_F7: 0x76;
    readonly DOM_VK_F8: 0x77;
    readonly DOM_VK_F9: 0x78;
    readonly DOM_VK_F10: 0x79;
    readonly DOM_VK_F11: 0x7A;
    readonly DOM_VK_F12: 0x7B;
    readonly DOM_VK_F13: 0x7C;
    readonly DOM_VK_F14: 0x7D;
    readonly DOM_VK_F15: 0x7E;
    readonly DOM_VK_F16: 0x7F;
    readonly DOM_VK_F17: 0x80;
    readonly DOM_VK_F18: 0x81;
    readonly DOM_VK_F19: 0x82;
    readonly DOM_VK_F20: 0x83;
    readonly DOM_VK_F21: 0x84;
    readonly DOM_VK_F22: 0x85;
    readonly DOM_VK_F23: 0x86;
    readonly DOM_VK_F24: 0x87;
    readonly DOM_VK_NUM_LOCK: 0x90;
    readonly DOM_VK_SCROLL_LOCK: 0x91;
    readonly DOM_VK_WIN_OEM_FJ_JISHO: 0x92;
    readonly DOM_VK_WIN_OEM_FJ_MASSHOU: 0x93;
    readonly DOM_VK_WIN_OEM_FJ_TOUROKU: 0x94;
    readonly DOM_VK_WIN_OEM_FJ_LOYA: 0x95;
    readonly DOM_VK_WIN_OEM_FJ_ROYA: 0x96;
    readonly DOM_VK_CIRCUMFLEX: 0xA0;
    readonly DOM_VK_EXCLAMATION: 0xA1;
    readonly DOM_VK_DOUBLE_QUOTE: 0xA2;
    readonly DOM_VK_HASH: 0xA3;
    readonly DOM_VK_DOLLAR: 0xA4;
    readonly DOM_VK_PERCENT: 0xA5;
    readonly DOM_VK_AMPERSAND: 0xA6;
    readonly DOM_VK_UNDERSCORE: 0xA7;
    readonly DOM_VK_OPEN_PAREN: 0xA8;
    readonly DOM_VK_CLOSE_PAREN: 0xA9;
    readonly DOM_VK_ASTERISK: 0xAA;
    readonly DOM_VK_PLUS: 0xAB;
    readonly DOM_VK_PIPE: 0xAC;
    readonly DOM_VK_HYPHEN_MINUS: 0xAD;
    readonly DOM_VK_OPEN_CURLY_BRACKET: 0xAE;
    readonly DOM_VK_CLOSE_CURLY_BRACKET: 0xAF;
    readonly DOM_VK_TILDE: 0xB0;
    readonly DOM_VK_VOLUME_MUTE: 0xB5;
    readonly DOM_VK_VOLUME_DOWN: 0xB6;
    readonly DOM_VK_VOLUME_UP: 0xB7;
    readonly DOM_VK_COMMA: 0xBC;
    readonly DOM_VK_PERIOD: 0xBE;
    readonly DOM_VK_SLASH: 0xBF;
    readonly DOM_VK_BACK_QUOTE: 0xC0;
    readonly DOM_VK_OPEN_BRACKET: 0xDB;
    readonly DOM_VK_BACK_SLASH: 0xDC;
    readonly DOM_VK_CLOSE_BRACKET: 0xDD;
    readonly DOM_VK_QUOTE: 0xDE;
    readonly DOM_VK_META: 0xE0;
    readonly DOM_VK_ALTGR: 0xE1;
    readonly DOM_VK_WIN_ICO_HELP: 0xE3;
    readonly DOM_VK_WIN_ICO_00: 0xE4;
    readonly DOM_VK_PROCESSKEY: 0xE5;
    readonly DOM_VK_WIN_ICO_CLEAR: 0xE6;
    readonly DOM_VK_WIN_OEM_RESET: 0xE9;
    readonly DOM_VK_WIN_OEM_JUMP: 0xEA;
    readonly DOM_VK_WIN_OEM_PA1: 0xEB;
    readonly DOM_VK_WIN_OEM_PA2: 0xEC;
    readonly DOM_VK_WIN_OEM_PA3: 0xED;
    readonly DOM_VK_WIN_OEM_WSCTRL: 0xEE;
    readonly DOM_VK_WIN_OEM_CUSEL: 0xEF;
    readonly DOM_VK_WIN_OEM_ATTN: 0xF0;
    readonly DOM_VK_WIN_OEM_FINISH: 0xF1;
    readonly DOM_VK_WIN_OEM_COPY: 0xF2;
    readonly DOM_VK_WIN_OEM_AUTO: 0xF3;
    readonly DOM_VK_WIN_OEM_ENLW: 0xF4;
    readonly DOM_VK_WIN_OEM_BACKTAB: 0xF5;
    readonly DOM_VK_ATTN: 0xF6;
    readonly DOM_VK_CRSEL: 0xF7;
    readonly DOM_VK_EXSEL: 0xF8;
    readonly DOM_VK_EREOF: 0xF9;
    readonly DOM_VK_PLAY: 0xFA;
    readonly DOM_VK_ZOOM: 0xFB;
    readonly DOM_VK_PA1: 0xFD;
    readonly DOM_VK_WIN_OEM_CLEAR: 0xFE;
    isInstance(obj): obj is KeyboardEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect) */
interface KeyframeEffect extends AnimationEffect {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/composite) */
    composite: CompositeOperation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/iterationComposite) */
    iterationComposite: IterationCompositeOperation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/pseudoElement) */
    pseudoElement: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/target) */
    target: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/getKeyframes) */
    getKeyframes(): any[];
    getProperties(): AnimationPropertyDetails[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/KeyframeEffect/setKeyframes) */
    setKeyframes(keyframes: any): void;
}

declare var KeyframeEffect: {
    prototype: KeyframeEffect;
    new(target: Element | null, keyframes: any, options?: number | KeyframeEffectOptions): KeyframeEffect;
    new(source: KeyframeEffect): KeyframeEffect;
    isInstance(obj): obj is KeyframeEffect;
};

interface L10nFileSource {
    readonly index: UTF8String[] | null;
    readonly locales: UTF8String[];
    readonly metaSource: UTF8String;
    readonly name: UTF8String;
    readonly prePath: UTF8String;
    fetchFile(locale: UTF8String, path: UTF8String): Promise<FluentResource | null>;
    fetchFileSync(locale: UTF8String, path: UTF8String): FluentResource | null;
    hasFile(locale: UTF8String, path: UTF8String): L10nFileSourceHasFileStatus;
}

declare var L10nFileSource: {
    prototype: L10nFileSource;
    new(name: UTF8String, metaSource: UTF8String, locales: UTF8String[], prePath: UTF8String, options?: FileSourceOptions, index?: UTF8String[]): L10nFileSource;
    createMock(name: UTF8String, metasource: UTF8String, locales: UTF8String[], prePath: UTF8String, fs: L10nFileSourceMockFile[]): L10nFileSource;
    isInstance(obj): obj is L10nFileSource;
};

interface L10nRegistry {
    clearSources(): void;
    generateBundles(aLocales: UTF8String[], aResourceIds: L10nResourceId[]): FluentBundleAsyncIterator;
    generateBundlesSync(aLocales: UTF8String[], aResourceIds: L10nResourceId[]): FluentBundleIterator;
    getAvailableLocales(): UTF8String[];
    getSource(aName: UTF8String): L10nFileSource | null;
    getSourceNames(): UTF8String[];
    hasSource(aName: UTF8String): boolean;
    registerSources(aSources: L10nFileSource[]): void;
    removeSources(aSources: UTF8String[]): void;
    updateSources(aSources: L10nFileSource[]): void;
}

declare var L10nRegistry: {
    prototype: L10nRegistry;
    new(aOptions?: L10nRegistryOptions): L10nRegistry;
    getInstance(): L10nRegistry;
    isInstance(obj): obj is L10nRegistry;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint) */
interface LargestContentfulPaint extends PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/element) */
    readonly element: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/loadTime) */
    readonly loadTime: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/renderTime) */
    readonly renderTime: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/size) */
    readonly size: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LargestContentfulPaint/toJSON) */
    toJSON(): any;
}

declare var LargestContentfulPaint: {
    prototype: LargestContentfulPaint;
    new(): LargestContentfulPaint;
    isInstance(obj): obj is LargestContentfulPaint;
};

interface LegacyMozTCPSocket {
    listen(port: number, options?: ServerSocketOptions, backlog?: number): TCPServerSocket;
    open(host: string, port: number, options?: SocketOptions): TCPSocket;
}

interface LinkStyle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLinkElement/sheet) */
    readonly sheet: StyleSheet | null;
}

interface LoadContextMixin {
    readonly associatedWindow: WindowProxy | null;
    readonly isContent: boolean;
    readonly originAttributes: any;
    readonly topFrameElement: Element | null;
    readonly topWindow: WindowProxy | null;
    usePrivateBrowsing: boolean;
    readonly useRemoteSubframes: boolean;
    readonly useRemoteTabs: boolean;
    useTrackingProtection: boolean;
}

interface Localization {
    addResourceIds(aResourceIds: L10nResourceId[]): void;
    formatMessages(aKeys: L10nKey[]): Promise<(L10nMessage | null)[]>;
    formatMessagesSync(aKeys: L10nKey[]): (L10nMessage | null)[];
    formatValue(aId: UTF8String, aArgs?: L10nArgs): Promise<UTF8String | null>;
    formatValueSync(aId: UTF8String, aArgs?: L10nArgs): UTF8String | null;
    formatValues(aKeys: L10nKey[]): Promise<(UTF8String | null)[]>;
    formatValuesSync(aKeys: L10nKey[]): (UTF8String | null)[];
    removeResourceIds(aResourceIds: L10nResourceId[]): number;
    setAsync(): void;
}

declare var Localization: {
    prototype: Localization;
    new(aResourceIds: L10nResourceId[], aSync?: boolean, aRegistry?: L10nRegistry, aLocales?: UTF8String[]): Localization;
    isInstance(obj): obj is Localization;
};

/**
 * The location (URL) of the object it is linked to. Changes done on it are reflected on the object it relates to. Both the Document and Window interface have such a linked Location, accessible via Document.location and Window.location respectively.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location)
 */
interface Location {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/hash) */
    hash: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/host) */
    host: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/hostname) */
    hostname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/href) */
    href: string;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/pathname) */
    pathname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/port) */
    port: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/protocol) */
    protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/search) */
    search: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/assign) */
    assign(url: string | URL): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/reload) */
    reload(forceget?: boolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Location/replace) */
    replace(url: string | URL): void;
}

declare var Location: {
    prototype: Location;
    new(): Location;
    isInstance(obj): obj is Location;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Lock)
 */
interface Lock {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Lock/mode) */
    readonly mode: LockMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Lock/name) */
    readonly name: string;
}

declare var Lock: {
    prototype: Lock;
    new(): Lock;
    isInstance(obj): obj is Lock;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/LockManager)
 */
interface LockManager {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LockManager/query) */
    query(): Promise<LockManagerSnapshot>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/LockManager/request) */
    request(name: string, callback: LockGrantedCallback): Promise<any>;
    request(name: string, options: LockOptions, callback: LockGrantedCallback): Promise<any>;
}

declare var LockManager: {
    prototype: LockManager;
    new(): LockManager;
    isInstance(obj): obj is LockManager;
};

interface MIDIAccessEventMap {
    "statechange": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIAccess)
 */
interface MIDIAccess extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIAccess/inputs) */
    readonly inputs: MIDIInputMap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIAccess/statechange_event) */
    onstatechange: ((this: MIDIAccess, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIAccess/outputs) */
    readonly outputs: MIDIOutputMap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIAccess/sysexEnabled) */
    readonly sysexEnabled: boolean;
    addEventListener<K extends keyof MIDIAccessEventMap>(type: K, listener: (this: MIDIAccess, ev: MIDIAccessEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MIDIAccessEventMap>(type: K, listener: (this: MIDIAccess, ev: MIDIAccessEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MIDIAccess: {
    prototype: MIDIAccess;
    new(): MIDIAccess;
    isInstance(obj): obj is MIDIAccess;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIConnectionEvent)
 */
interface MIDIConnectionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIConnectionEvent/port) */
    readonly port: MIDIPort | null;
}

declare var MIDIConnectionEvent: {
    prototype: MIDIConnectionEvent;
    new(type: string, eventInitDict?: MIDIConnectionEventInit): MIDIConnectionEvent;
    isInstance(obj): obj is MIDIConnectionEvent;
};

interface MIDIInputEventMap extends MIDIPortEventMap {
    "midimessage": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIInput)
 */
interface MIDIInput extends MIDIPort {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIInput/midimessage_event) */
    onmidimessage: ((this: MIDIInput, ev: Event) => any) | null;
    addEventListener<K extends keyof MIDIInputEventMap>(type: K, listener: (this: MIDIInput, ev: MIDIInputEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MIDIInputEventMap>(type: K, listener: (this: MIDIInput, ev: MIDIInputEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MIDIInput: {
    prototype: MIDIInput;
    new(): MIDIInput;
    isInstance(obj): obj is MIDIInput;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIInputMap)
 */
interface MIDIInputMap {
    forEach(callbackfn: (value: MIDIInput, key: string, parent: MIDIInputMap) => void, thisArg?: any): void;
}

declare var MIDIInputMap: {
    prototype: MIDIInputMap;
    new(): MIDIInputMap;
    isInstance(obj): obj is MIDIInputMap;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIMessageEvent)
 */
interface MIDIMessageEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIMessageEvent/data) */
    readonly data: Uint8Array;
}

declare var MIDIMessageEvent: {
    prototype: MIDIMessageEvent;
    new(type: string, eventInitDict?: MIDIMessageEventInit): MIDIMessageEvent;
    isInstance(obj): obj is MIDIMessageEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIOutput)
 */
interface MIDIOutput extends MIDIPort {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIOutput/clear) */
    clear(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIOutput/send) */
    send(data: number[], timestamp?: DOMHighResTimeStamp): void;
    addEventListener<K extends keyof MIDIPortEventMap>(type: K, listener: (this: MIDIOutput, ev: MIDIPortEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MIDIPortEventMap>(type: K, listener: (this: MIDIOutput, ev: MIDIPortEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MIDIOutput: {
    prototype: MIDIOutput;
    new(): MIDIOutput;
    isInstance(obj): obj is MIDIOutput;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIOutputMap)
 */
interface MIDIOutputMap {
    forEach(callbackfn: (value: MIDIOutput, key: string, parent: MIDIOutputMap) => void, thisArg?: any): void;
}

declare var MIDIOutputMap: {
    prototype: MIDIOutputMap;
    new(): MIDIOutputMap;
    isInstance(obj): obj is MIDIOutputMap;
};

interface MIDIPortEventMap {
    "statechange": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort)
 */
interface MIDIPort extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/connection) */
    readonly connection: MIDIPortConnectionState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/manufacturer) */
    readonly manufacturer: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/name) */
    readonly name: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/statechange_event) */
    onstatechange: ((this: MIDIPort, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/state) */
    readonly state: MIDIPortDeviceState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/type) */
    readonly type: MIDIPortType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/version) */
    readonly version: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/close) */
    close(): Promise<MIDIPort>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MIDIPort/open) */
    open(): Promise<MIDIPort>;
    addEventListener<K extends keyof MIDIPortEventMap>(type: K, listener: (this: MIDIPort, ev: MIDIPortEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MIDIPortEventMap>(type: K, listener: (this: MIDIPort, ev: MIDIPortEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MIDIPort: {
    prototype: MIDIPort;
    new(): MIDIPort;
    isInstance(obj): obj is MIDIPort;
};

interface MOZ_debug {
    getParameter(pname: GLenum): any;
    readonly EXTENSIONS: 0x1F03;
    readonly WSI_INFO: 0x10000;
    readonly UNPACK_REQUIRE_FASTPATH: 0x10001;
    readonly DOES_INDEX_VALIDATION: 0x10002;
}

interface MatchGlob {
    readonly glob: UTF8String;
    matches(string: UTF8String): boolean;
}

declare var MatchGlob: {
    prototype: MatchGlob;
    new(glob: UTF8String, allowQuestion?: boolean): MatchGlob;
    isInstance(obj): obj is MatchGlob;
};

interface MatchPattern {
    readonly matchesAllWebUrls: boolean;
    readonly pattern: string;
    matches(uri: URI, explicit?: boolean): boolean;
    matches(url: string, explicit?: boolean): boolean;
    matchesCookie(cookie: Cookie): boolean;
    overlaps(pattern: MatchPattern): boolean;
    subsumes(pattern: MatchPattern): boolean;
    subsumesDomain(pattern: MatchPattern): boolean;
}

declare var MatchPattern: {
    prototype: MatchPattern;
    new(pattern: string, options?: MatchPatternOptions): MatchPattern;
    isInstance(obj): obj is MatchPattern;
};

interface MatchPatternSet {
    readonly matchesAllWebUrls: boolean;
    readonly patterns: MatchPattern[];
    matches(uri: URI, explicit?: boolean): boolean;
    matches(url: string, explicit?: boolean): boolean;
    matchesCookie(cookie: Cookie): boolean;
    overlaps(pattern: MatchPattern): boolean;
    overlaps(patternSet: MatchPatternSet): boolean;
    overlapsAll(patternSet: MatchPatternSet): boolean;
    subsumes(pattern: MatchPattern): boolean;
    subsumesDomain(pattern: MatchPattern): boolean;
}

declare var MatchPatternSet: {
    prototype: MatchPatternSet;
    new(patterns: (string | MatchPattern)[], options?: MatchPatternOptions): MatchPatternSet;
    isInstance(obj): obj is MatchPatternSet;
};

interface MathMLElementEventMap extends ElementEventMap, GlobalEventHandlersEventMap, OnErrorEventHandlerForNodesEventMap, TouchEventHandlersEventMap {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MathMLElement) */
interface MathMLElement extends Element, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement, OnErrorEventHandlerForNodes, TouchEventHandlers {
    addEventListener<K extends keyof MathMLElementEventMap>(type: K, listener: (this: MathMLElement, ev: MathMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MathMLElementEventMap>(type: K, listener: (this: MathMLElement, ev: MathMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MathMLElement: {
    prototype: MathMLElement;
    new(): MathMLElement;
    isInstance(obj): obj is MathMLElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaCapabilities) */
interface MediaCapabilities {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaCapabilities/decodingInfo) */
    decodingInfo(configuration: MediaDecodingConfiguration): Promise<MediaCapabilitiesInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaCapabilities/encodingInfo) */
    encodingInfo(configuration: MediaEncodingConfiguration): Promise<MediaCapabilitiesInfo>;
}

declare var MediaCapabilities: {
    prototype: MediaCapabilities;
    new(): MediaCapabilities;
    isInstance(obj): obj is MediaCapabilities;
};

interface MediaCapabilitiesInfo {
    readonly powerEfficient: boolean;
    readonly smooth: boolean;
    readonly supported: boolean;
}

declare var MediaCapabilitiesInfo: {
    prototype: MediaCapabilitiesInfo;
    new(): MediaCapabilitiesInfo;
    isInstance(obj): obj is MediaCapabilitiesInfo;
};

interface MediaControllerEventMap {
    "activated": Event;
    "deactivated": Event;
    "metadatachange": Event;
    "playbackstatechange": Event;
    "positionstatechange": Event;
    "supportedkeyschange": Event;
}

/** @deprecated */
interface MediaController extends EventTarget {
    readonly id: number;
    readonly isActive: boolean;
    readonly isAudible: boolean;
    readonly isPlaying: boolean;
    onactivated: ((this: MediaController, ev: Event) => any) | null;
    ondeactivated: ((this: MediaController, ev: Event) => any) | null;
    onmetadatachange: ((this: MediaController, ev: Event) => any) | null;
    onplaybackstatechange: ((this: MediaController, ev: Event) => any) | null;
    onpositionstatechange: ((this: MediaController, ev: Event) => any) | null;
    onsupportedkeyschange: ((this: MediaController, ev: Event) => any) | null;
    /** @deprecated */
    readonly playbackState: MediaSessionPlaybackState;
    readonly supportedKeys: MediaControlKey[];
    focus(): void;
    getMetadata(): MediaMetadataInit;
    nextTrack(): void;
    /** @deprecated */
    pause(): void;
    /** @deprecated */
    play(): void;
    prevTrack(): void;
    seekBackward(): void;
    seekForward(): void;
    seekTo(seekTime: number, fastSeek?: boolean): void;
    skipAd(): void;
    stop(): void;
    addEventListener<K extends keyof MediaControllerEventMap>(type: K, listener: (this: MediaController, ev: MediaControllerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaControllerEventMap>(type: K, listener: (this: MediaController, ev: MediaControllerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var MediaController: {
    prototype: MediaController;
    new(): MediaController;
    isInstance(obj): obj is MediaController;
};

/**
 * The MediaDevicesInfo interface contains information that describes a single media input or output device.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo)
 */
interface MediaDeviceInfo {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/deviceId) */
    readonly deviceId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/groupId) */
    readonly groupId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/kind) */
    readonly kind: MediaDeviceKind;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDeviceInfo/toJSON) */
    toJSON(): any;
}

declare var MediaDeviceInfo: {
    prototype: MediaDeviceInfo;
    new(): MediaDeviceInfo;
    isInstance(obj): obj is MediaDeviceInfo;
};

interface MediaDevicesEventMap {
    "devicechange": Event;
}

/**
 * Provides access to connected media input devices like cameras and microphones, as well as screen sharing. In essence, it lets you obtain access to any hardware source of media data.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices)
 */
interface MediaDevices extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/devicechange_event) */
    ondevicechange: ((this: MediaDevices, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/enumerateDevices) */
    enumerateDevices(): Promise<MediaDeviceInfo[]>;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/getDisplayMedia)
     */
    getDisplayMedia(constraints?: DisplayMediaStreamConstraints): Promise<MediaStream>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/getSupportedConstraints) */
    getSupportedConstraints(): MediaTrackSupportedConstraints;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/getUserMedia) */
    getUserMedia(constraints?: MediaStreamConstraints): Promise<MediaStream>;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaDevices/selectAudioOutput)
     */
    selectAudioOutput(options?: AudioOutputOptions): Promise<MediaDeviceInfo>;
    addEventListener<K extends keyof MediaDevicesEventMap>(type: K, listener: (this: MediaDevices, ev: MediaDevicesEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaDevicesEventMap>(type: K, listener: (this: MediaDevices, ev: MediaDevicesEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaDevices: {
    prototype: MediaDevices;
    new(): MediaDevices;
    isInstance(obj): obj is MediaDevices;
};

/**
 * A MediaElementSourceNode has no inputs and exactly one output, and is created using the AudioContext.createMediaElementSource method. The amount of channels in the output equals the number of channels of the audio referenced by the HTMLMediaElement used in the creation of the node, or is 1 if the HTMLMediaElement has no audio.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaElementAudioSourceNode)
 */
interface MediaElementAudioSourceNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaElementAudioSourceNode/mediaElement) */
    readonly mediaElement: HTMLMediaElement;
}

declare var MediaElementAudioSourceNode: {
    prototype: MediaElementAudioSourceNode;
    new(context: AudioContext, options: MediaElementAudioSourceOptions): MediaElementAudioSourceNode;
    isInstance(obj): obj is MediaElementAudioSourceNode;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaEncryptedEvent) */
interface MediaEncryptedEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaEncryptedEvent/initData) */
    readonly initData: ArrayBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaEncryptedEvent/initDataType) */
    readonly initDataType: string;
}

declare var MediaEncryptedEvent: {
    prototype: MediaEncryptedEvent;
    new(type: string, eventInitDict?: MediaKeyNeededEventInit): MediaEncryptedEvent;
    isInstance(obj): obj is MediaEncryptedEvent;
};

/**
 * An error which occurred while handling media in an HTML media element based on HTMLMediaElement, such as <audio> or <video>.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaError)
 */
interface MediaError {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaError/code) */
    readonly code: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaError/message) */
    readonly message: string;
    readonly MEDIA_ERR_ABORTED: 1;
    readonly MEDIA_ERR_NETWORK: 2;
    readonly MEDIA_ERR_DECODE: 3;
    readonly MEDIA_ERR_SRC_NOT_SUPPORTED: 4;
}

declare var MediaError: {
    prototype: MediaError;
    new(): MediaError;
    readonly MEDIA_ERR_ABORTED: 1;
    readonly MEDIA_ERR_NETWORK: 2;
    readonly MEDIA_ERR_DECODE: 3;
    readonly MEDIA_ERR_SRC_NOT_SUPPORTED: 4;
    isInstance(obj): obj is MediaError;
};

interface MediaKeyError extends Event {
    readonly systemCode: number;
}

declare var MediaKeyError: {
    prototype: MediaKeyError;
    new(): MediaKeyError;
    isInstance(obj): obj is MediaKeyError;
};

/**
 * This EncryptedMediaExtensions API interface contains the content and related data when the content decryption module generates a message for the session.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyMessageEvent)
 */
interface MediaKeyMessageEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyMessageEvent/message) */
    readonly message: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyMessageEvent/messageType) */
    readonly messageType: MediaKeyMessageType;
}

declare var MediaKeyMessageEvent: {
    prototype: MediaKeyMessageEvent;
    new(type: string, eventInitDict: MediaKeyMessageEventInit): MediaKeyMessageEvent;
    isInstance(obj): obj is MediaKeyMessageEvent;
};

interface MediaKeySessionEventMap {
    "keystatuseschange": Event;
    "message": Event;
}

/**
 * This EncryptedMediaExtensions API interface represents a context for message exchange with a content decryption module (CDM).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession)
 */
interface MediaKeySession extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/closed) */
    readonly closed: Promise<undefined>;
    "error": ErrorEvent;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/expiration) */
    readonly expiration: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/keyStatuses) */
    readonly keyStatuses: MediaKeyStatusMap;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/keystatuseschange_event) */
    onkeystatuseschange: ((this: MediaKeySession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/message_event) */
    onmessage: ((this: MediaKeySession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/sessionId) */
    readonly sessionId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/close) */
    close(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/generateRequest) */
    generateRequest(initDataType: string, initData: BufferSource): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/load) */
    load(sessionId: string): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/remove) */
    remove(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySession/update) */
    update(response: BufferSource): Promise<void>;
    addEventListener<K extends keyof MediaKeySessionEventMap>(type: K, listener: (this: MediaKeySession, ev: MediaKeySessionEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaKeySessionEventMap>(type: K, listener: (this: MediaKeySession, ev: MediaKeySessionEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaKeySession: {
    prototype: MediaKeySession;
    new(): MediaKeySession;
    isInstance(obj): obj is MediaKeySession;
};

/**
 * This EncryptedMediaExtensions API interface is a read-only map of media key statuses by key IDs.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyStatusMap)
 */
interface MediaKeyStatusMap {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyStatusMap/size) */
    readonly size: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyStatusMap/get) */
    get(keyId: BufferSource): MediaKeyStatus | undefined;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeyStatusMap/has) */
    has(keyId: BufferSource): boolean;
    forEach(callbackfn: (value: MediaKeyStatus, key: ArrayBuffer, parent: MediaKeyStatusMap) => void, thisArg?: any): void;
}

declare var MediaKeyStatusMap: {
    prototype: MediaKeyStatusMap;
    new(): MediaKeyStatusMap;
    isInstance(obj): obj is MediaKeyStatusMap;
};

/**
 * This EncryptedMediaExtensions API interface provides access to a Key System for decryption and/or a content protection provider. You can request an instance of this object using the Navigator.requestMediaKeySystemAccess method.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySystemAccess)
 */
interface MediaKeySystemAccess {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySystemAccess/keySystem) */
    readonly keySystem: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySystemAccess/createMediaKeys) */
    createMediaKeys(): Promise<MediaKeys>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeySystemAccess/getConfiguration) */
    getConfiguration(): MediaKeySystemConfiguration;
}

declare var MediaKeySystemAccess: {
    prototype: MediaKeySystemAccess;
    new(): MediaKeySystemAccess;
    isInstance(obj): obj is MediaKeySystemAccess;
};

/**
 * This EncryptedMediaExtensions API interface the represents a set of keys that an associated HTMLMediaElement can use for decryption of media data during playback.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeys)
 */
interface MediaKeys {
    readonly keySystem: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeys/createSession) */
    createSession(sessionType?: MediaKeySessionType): MediaKeySession;
    getStatusForPolicy(policy?: MediaKeysPolicy): Promise<MediaKeyStatus>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaKeys/setServerCertificate) */
    setServerCertificate(serverCertificate: BufferSource): Promise<void>;
}

declare var MediaKeys: {
    prototype: MediaKeys;
    new(): MediaKeys;
    isInstance(obj): obj is MediaKeys;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList) */
interface MediaList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList/mediaText) */
    mediaText: UTF8String;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList/appendMedium) */
    appendMedium(newMedium: UTF8String): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList/deleteMedium) */
    deleteMedium(oldMedium: UTF8String): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaList/item) */
    item(index: number): UTF8String | null;
    [index: number]: UTF8String;
}

declare var MediaList: {
    prototype: MediaList;
    new(): MediaList;
    isInstance(obj): obj is MediaList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaMetadata) */
interface MediaMetadata {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaMetadata/album) */
    album: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaMetadata/artist) */
    artist: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaMetadata/artwork) */
    artwork: any[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaMetadata/title) */
    title: string;
}

declare var MediaMetadata: {
    prototype: MediaMetadata;
    new(init?: MediaMetadataInit): MediaMetadata;
    isInstance(obj): obj is MediaMetadata;
};

interface MediaQueryListEventMap {
    "change": Event;
}

/**
 * Stores information on a media query applied to a document, and handles sending notifications to listeners when the media query state change (i.e. when the media query test starts or stops evaluating to true).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList)
 */
interface MediaQueryList extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList/matches) */
    readonly matches: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList/media) */
    readonly media: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList/change_event) */
    onchange: ((this: MediaQueryList, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList/addListener)
     */
    addListener(listener: EventListener | null): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryList/removeListener)
     */
    removeListener(listener: EventListener | null): void;
    addEventListener<K extends keyof MediaQueryListEventMap>(type: K, listener: (this: MediaQueryList, ev: MediaQueryListEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaQueryListEventMap>(type: K, listener: (this: MediaQueryList, ev: MediaQueryListEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaQueryList: {
    prototype: MediaQueryList;
    new(): MediaQueryList;
    isInstance(obj): obj is MediaQueryList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryListEvent) */
interface MediaQueryListEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryListEvent/matches) */
    readonly matches: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaQueryListEvent/media) */
    readonly media: UTF8String;
}

declare var MediaQueryListEvent: {
    prototype: MediaQueryListEvent;
    new(type: string, eventInitDict?: MediaQueryListEventInit): MediaQueryListEvent;
    isInstance(obj): obj is MediaQueryListEvent;
};

interface MediaRecorderEventMap {
    "dataavailable": Event;
    "error": ErrorEvent;
    "pause": Event;
    "resume": Event;
    "start": Event;
    "stop": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder) */
interface MediaRecorder extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/audioBitsPerSecond) */
    readonly audioBitsPerSecond: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/mimeType) */
    readonly mimeType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/dataavailable_event) */
    ondataavailable: ((this: MediaRecorder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/pause_event) */
    onpause: ((this: MediaRecorder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/resume_event) */
    onresume: ((this: MediaRecorder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/start_event) */
    onstart: ((this: MediaRecorder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/stop_event) */
    onstop: ((this: MediaRecorder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/state) */
    readonly state: RecordingState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/stream) */
    readonly stream: MediaStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/videoBitsPerSecond) */
    readonly videoBitsPerSecond: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/pause) */
    pause(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/requestData) */
    requestData(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/resume) */
    resume(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/start) */
    start(timeslice?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/stop) */
    stop(): void;
    addEventListener<K extends keyof MediaRecorderEventMap>(type: K, listener: (this: MediaRecorder, ev: MediaRecorderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaRecorderEventMap>(type: K, listener: (this: MediaRecorder, ev: MediaRecorderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaRecorder: {
    prototype: MediaRecorder;
    new(stream: MediaStream, options?: MediaRecorderOptions): MediaRecorder;
    new(node: AudioNode, output?: number, options?: MediaRecorderOptions): MediaRecorder;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorder/isTypeSupported_static) */
    isTypeSupported(type: string): boolean;
    isInstance(obj): obj is MediaRecorder;
};

/**
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorderErrorEvent)
 */
interface MediaRecorderErrorEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaRecorderErrorEvent/error)
     */
    "error": ErrorEvent;
}

/** @deprecated */
declare var MediaRecorderErrorEvent: {
    prototype: MediaRecorderErrorEvent;
    new(type: string, eventInitDict: MediaRecorderErrorEventInit): MediaRecorderErrorEvent;
    isInstance(obj): obj is MediaRecorderErrorEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSession) */
interface MediaSession {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSession/metadata) */
    metadata: MediaMetadata | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSession/playbackState) */
    playbackState: MediaSessionPlaybackState;
    notifyHandler(details: MediaSessionActionDetails): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSession/setActionHandler) */
    setActionHandler(action: MediaSessionAction, handler: MediaSessionActionHandler | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSession/setPositionState) */
    setPositionState(state?: MediaPositionState): void;
}

declare var MediaSession: {
    prototype: MediaSession;
    new(): MediaSession;
    isInstance(obj): obj is MediaSession;
};

interface MediaSourceEventMap {
    "sourceclose": Event;
    "sourceended": Event;
    "sourceopen": Event;
}

/**
 * This Media Source Extensions API interface represents a source of media data for an HTMLMediaElement object. A MediaSource object can be attached to a HTMLMediaElement to be played in the user agent.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource)
 */
interface MediaSource extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/activeSourceBuffers) */
    readonly activeSourceBuffers: SourceBufferList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/duration) */
    duration: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/sourceclose_event) */
    onsourceclose: ((this: MediaSource, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/sourceended_event) */
    onsourceended: ((this: MediaSource, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/sourceopen_event) */
    onsourceopen: ((this: MediaSource, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/readyState) */
    readonly readyState: MediaSourceReadyState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/sourceBuffers) */
    readonly sourceBuffers: SourceBufferList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/addSourceBuffer) */
    addSourceBuffer(type: string): SourceBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/clearLiveSeekableRange) */
    clearLiveSeekableRange(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/endOfStream) */
    endOfStream(error?: MediaSourceEndOfStreamError): void;
    mozDebugReaderData(): Promise<MediaSourceDecoderDebugInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/removeSourceBuffer) */
    removeSourceBuffer(sourceBuffer: SourceBuffer): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/setLiveSeekableRange) */
    setLiveSeekableRange(start: number, end: number): void;
    addEventListener<K extends keyof MediaSourceEventMap>(type: K, listener: (this: MediaSource, ev: MediaSourceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaSourceEventMap>(type: K, listener: (this: MediaSource, ev: MediaSourceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaSource: {
    prototype: MediaSource;
    new(): MediaSource;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaSource/isTypeSupported_static) */
    isTypeSupported(type: string): boolean;
    isInstance(obj): obj is MediaSource;
};

interface MediaStreamEventMap {
    "addtrack": Event;
    "removetrack": Event;
}

/**
 * A stream of media content. A stream consists of several tracks such as video or audio tracks. Each track is specified as an instance of MediaStreamTrack.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream)
 */
interface MediaStream extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/active) */
    readonly active: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/addtrack_event) */
    onaddtrack: ((this: MediaStream, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/removetrack_event) */
    onremovetrack: ((this: MediaStream, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/addTrack) */
    addTrack(track: MediaStreamTrack): void;
    assignId(id: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/clone) */
    clone(): MediaStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/getAudioTracks) */
    getAudioTracks(): MediaStreamTrack[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/getTrackById) */
    getTrackById(trackId: string): MediaStreamTrack | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/getTracks) */
    getTracks(): MediaStreamTrack[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/getVideoTracks) */
    getVideoTracks(): MediaStreamTrack[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStream/removeTrack) */
    removeTrack(track: MediaStreamTrack): void;
    addEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: MediaStream, ev: MediaStreamEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaStreamEventMap>(type: K, listener: (this: MediaStream, ev: MediaStreamEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaStream: {
    prototype: MediaStream;
    new(): MediaStream;
    new(stream: MediaStream): MediaStream;
    new(tracks: MediaStreamTrack[]): MediaStream;
    countUnderlyingStreams(): Promise<number>;
    isInstance(obj): obj is MediaStream;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamAudioDestinationNode) */
interface MediaStreamAudioDestinationNode extends AudioNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamAudioDestinationNode/stream) */
    readonly stream: MediaStream;
}

declare var MediaStreamAudioDestinationNode: {
    prototype: MediaStreamAudioDestinationNode;
    new(context: AudioContext, options?: AudioNodeOptions): MediaStreamAudioDestinationNode;
    isInstance(obj): obj is MediaStreamAudioDestinationNode;
};

/**
 * A type of AudioNode which operates as an audio source whose media is received from a MediaStream obtained using the WebRTC or Media Capture and Streams APIs.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamAudioSourceNode)
 */
interface MediaStreamAudioSourceNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamAudioSourceNode/mediaStream) */
    readonly mediaStream: MediaStream;
}

declare var MediaStreamAudioSourceNode: {
    prototype: MediaStreamAudioSourceNode;
    new(context: AudioContext, options: MediaStreamAudioSourceOptions): MediaStreamAudioSourceNode;
    isInstance(obj): obj is MediaStreamAudioSourceNode;
};

interface MediaStreamError {
    readonly constraint: string | null;
    readonly message: string | null;
    readonly name: string;
}

/**
 * Events that occurs in relation to a MediaStream. Two events of this type can be thrown: addstream and removestream.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamEvent)
 */
interface MediaStreamEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamEvent/stream)
     */
    readonly stream: MediaStream | null;
}

/** @deprecated */
declare var MediaStreamEvent: {
    prototype: MediaStreamEvent;
    new(type: string, eventInitDict?: MediaStreamEventInit): MediaStreamEvent;
    isInstance(obj): obj is MediaStreamEvent;
};

interface MediaStreamTrackEventMap {
    "ended": Event;
    "mute": Event;
    "unmute": Event;
}

/**
 * A single media track within a stream; typically, these are audio or video tracks, but other track types may exist as well.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack)
 */
interface MediaStreamTrack extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/enabled) */
    enabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/kind) */
    readonly kind: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/muted) */
    readonly muted: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/ended_event) */
    onended: ((this: MediaStreamTrack, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/mute_event) */
    onmute: ((this: MediaStreamTrack, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/unmute_event) */
    onunmute: ((this: MediaStreamTrack, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/readyState) */
    readonly readyState: MediaStreamTrackState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/applyConstraints) */
    applyConstraints(constraints?: MediaTrackConstraints): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/clone) */
    clone(): MediaStreamTrack;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/getConstraints) */
    getConstraints(): MediaTrackConstraints;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/getSettings) */
    getSettings(): MediaTrackSettings;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrack/stop) */
    stop(): void;
    addEventListener<K extends keyof MediaStreamTrackEventMap>(type: K, listener: (this: MediaStreamTrack, ev: MediaStreamTrackEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MediaStreamTrackEventMap>(type: K, listener: (this: MediaStreamTrack, ev: MediaStreamTrackEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MediaStreamTrack: {
    prototype: MediaStreamTrack;
    new(): MediaStreamTrack;
    isInstance(obj): obj is MediaStreamTrack;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrackAudioSourceNode) */
interface MediaStreamTrackAudioSourceNode extends AudioNode, AudioNodePassThrough {
}

declare var MediaStreamTrackAudioSourceNode: {
    prototype: MediaStreamTrackAudioSourceNode;
    new(context: AudioContext, options: MediaStreamTrackAudioSourceOptions): MediaStreamTrackAudioSourceNode;
    isInstance(obj): obj is MediaStreamTrackAudioSourceNode;
};

/**
 * Events which indicate that a MediaStream has had tracks added to or removed from the stream through calls to Media Stream API methods. These events are sent to the stream when these changes occur.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrackEvent)
 */
interface MediaStreamTrackEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MediaStreamTrackEvent/track) */
    readonly track: MediaStreamTrack;
}

declare var MediaStreamTrackEvent: {
    prototype: MediaStreamTrackEvent;
    new(type: string, eventInitDict: MediaStreamTrackEventInit): MediaStreamTrackEvent;
    isInstance(obj): obj is MediaStreamTrackEvent;
};

/**
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent)
 */
interface MerchantValidationEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent/methodName)
     */
    readonly methodName: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent/validationURL)
     */
    readonly validationURL: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MerchantValidationEvent/complete)
     */
    complete(merchantSessionPromise: any): void;
}

/** @deprecated */
declare var MerchantValidationEvent: {
    prototype: MerchantValidationEvent;
    new(type: string, eventInitDict?: MerchantValidationEventInit): MerchantValidationEvent;
    isInstance(obj): obj is MerchantValidationEvent;
};

interface MessageBroadcaster extends MessageListenerManager {
    readonly childCount: number;
    broadcastAsyncMessage(messageName?: string | null, obj?: any): void;
    getChildAt(aIndex: number): MessageListenerManager | null;
    releaseCachedProcesses(): void;
}

declare var MessageBroadcaster: {
    prototype: MessageBroadcaster;
    new(): MessageBroadcaster;
    isInstance(obj): obj is MessageBroadcaster;
};

/**
 * This Channel Messaging API interface allows us to create a new message channel and send data through it via its two MessagePort properties.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageChannel)
 */
interface MessageChannel {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageChannel/port1) */
    readonly port1: MessagePort;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageChannel/port2) */
    readonly port2: MessagePort;
}

declare var MessageChannel: {
    prototype: MessageChannel;
    new(): MessageChannel;
    isInstance(obj): obj is MessageChannel;
};

/**
 * A message received by a target object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent)
 */
interface MessageEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/data) */
    readonly data: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/lastEventId) */
    readonly lastEventId: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/ports) */
    readonly ports: MessagePort[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/source) */
    readonly source: MessageEventSource | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessageEvent/initMessageEvent)
     */
    initMessageEvent(type: string, bubbles?: boolean, cancelable?: boolean, data?: any, origin?: string, lastEventId?: string, source?: MessageEventSource | null, ports?: MessagePort[]): void;
}

declare var MessageEvent: {
    prototype: MessageEvent;
    new(type: string, eventInitDict?: MessageEventInit): MessageEvent;
    isInstance(obj): obj is MessageEvent;
};

interface MessageListenerManager extends MessageListenerManagerMixin {
}

declare var MessageListenerManager: {
    prototype: MessageListenerManager;
    new(): MessageListenerManager;
    isInstance(obj): obj is MessageListenerManager;
};

interface MessageListenerManagerMixin {
    addMessageListener(messageName: string, listener: MessageListener, listenWhenClosed?: boolean): void;
    addWeakMessageListener(messageName: string, listener: MessageListener): void;
    removeMessageListener(messageName: string, listener: MessageListener): void;
    removeWeakMessageListener(messageName: string, listener: MessageListener): void;
}

interface MessageManagerGlobal {
    atob(asciiString: string): string;
    btoa(base64Data: string): string;
    dump(str: string): void;
}

interface MessagePortEventMap {
    "message": Event;
    "messageerror": Event;
}

/**
 * This Channel Messaging API interface represents one of the two ports of a MessageChannel, allowing messages to be sent from one port and listening out for them arriving at the other.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort)
 */
interface MessagePort extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort/message_event) */
    onmessage: ((this: MessagePort, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort/messageerror_event) */
    onmessageerror: ((this: MessagePort, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort/postMessage) */
    postMessage(message: any, transferable: any[]): void;
    postMessage(message: any, options?: StructuredSerializeOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MessagePort/start) */
    start(): void;
    addEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof MessagePortEventMap>(type: K, listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var MessagePort: {
    prototype: MessagePort;
    new(): MessagePort;
    isInstance(obj): obj is MessagePort;
};

interface MessageSender extends MessageListenerManager, MessageSenderMixin {
}

declare var MessageSender: {
    prototype: MessageSender;
    new(): MessageSender;
    isInstance(obj): obj is MessageSender;
};

interface MessageSenderMixin {
    readonly processMessageManager: MessageSender | null;
    readonly remoteType: UTF8String;
    sendAsyncMessage(messageName?: string | null, obj?: any, transfers?: any): void;
}

/**
 * Provides contains information about a MIME type associated with a particular plugin. NavigatorPlugins.mimeTypes returns an array of this object.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeType)
 */
interface MimeType {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeType/description)
     */
    readonly description: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeType/enabledPlugin)
     */
    readonly enabledPlugin: Plugin;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeType/suffixes)
     */
    readonly suffixes: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeType/type)
     */
    readonly type: string;
}

/** @deprecated */
declare var MimeType: {
    prototype: MimeType;
    new(): MimeType;
    isInstance(obj): obj is MimeType;
};

/**
 * Returns an array of MimeType instances, each of which contains information about a supported browser plugins. This object is returned by NavigatorPlugins.mimeTypes.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeTypeArray)
 */
interface MimeTypeArray {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeTypeArray/length)
     */
    readonly length: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeTypeArray/item)
     */
    item(index: number): MimeType | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MimeTypeArray/namedItem)
     */
    namedItem(name: string): MimeType | null;
    [index: number]: MimeType;
}

/** @deprecated */
declare var MimeTypeArray: {
    prototype: MimeTypeArray;
    new(): MimeTypeArray;
    isInstance(obj): obj is MimeTypeArray;
};

/**
 * Events that occur due to the user interacting with a pointing device (such as a mouse). Common events using this interface include click, dblclick, mouseup, mousedown.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent)
 */
interface MouseEvent extends UIEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/altKey) */
    readonly altKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/button) */
    readonly button: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/buttons) */
    readonly buttons: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/clientX) */
    readonly clientX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/clientY) */
    readonly clientY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/ctrlKey) */
    readonly ctrlKey: boolean;
    readonly inputSource: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/metaKey) */
    readonly metaKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/movementX) */
    readonly movementX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/movementY) */
    readonly movementY: number;
    readonly mozInputSource: number;
    readonly mozPressure: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/offsetX) */
    readonly offsetX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/offsetY) */
    readonly offsetY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/pageX) */
    readonly pageX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/pageY) */
    readonly pageY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/relatedTarget) */
    readonly relatedTarget: EventTarget | null;
    readonly screen: nsIScreen | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/screenX) */
    readonly screenX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/screenY) */
    readonly screenY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/shiftKey) */
    readonly shiftKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/x) */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/y) */
    readonly y: number;
    clickEventPrevented(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/getModifierState) */
    getModifierState(keyArg: string): boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseEvent/initMouseEvent)
     */
    initMouseEvent(typeArg: string, canBubbleArg?: boolean, cancelableArg?: boolean, viewArg?: Window | null, detailArg?: number, screenXArg?: number, screenYArg?: number, clientXArg?: number, clientYArg?: number, ctrlKeyArg?: boolean, altKeyArg?: boolean, shiftKeyArg?: boolean, metaKeyArg?: boolean, buttonArg?: number, relatedTargetArg?: EventTarget | null): void;
    initNSMouseEvent(typeArg: string, canBubbleArg?: boolean, cancelableArg?: boolean, viewArg?: Window | null, detailArg?: number, screenXArg?: number, screenYArg?: number, clientXArg?: number, clientYArg?: number, ctrlKeyArg?: boolean, altKeyArg?: boolean, shiftKeyArg?: boolean, metaKeyArg?: boolean, buttonArg?: number, relatedTargetArg?: EventTarget | null, pressure?: number, inputSourceArg?: number): void;
    preventClickEvent(): void;
    readonly MOZ_SOURCE_UNKNOWN: 0;
    readonly MOZ_SOURCE_MOUSE: 1;
    readonly MOZ_SOURCE_PEN: 2;
    readonly MOZ_SOURCE_ERASER: 3;
    readonly MOZ_SOURCE_CURSOR: 4;
    readonly MOZ_SOURCE_TOUCH: 5;
    readonly MOZ_SOURCE_KEYBOARD: 6;
}

declare var MouseEvent: {
    prototype: MouseEvent;
    new(typeArg: string, mouseEventInitDict?: MouseEventInit): MouseEvent;
    readonly MOZ_SOURCE_UNKNOWN: 0;
    readonly MOZ_SOURCE_MOUSE: 1;
    readonly MOZ_SOURCE_PEN: 2;
    readonly MOZ_SOURCE_ERASER: 3;
    readonly MOZ_SOURCE_CURSOR: 4;
    readonly MOZ_SOURCE_TOUCH: 5;
    readonly MOZ_SOURCE_KEYBOARD: 6;
    isInstance(obj): obj is MouseEvent;
};

/**
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MouseScrollEvent)
 */
interface MouseScrollEvent extends MouseEvent {
    readonly axis: number;
    initMouseScrollEvent(type: string, canBubble?: boolean, cancelable?: boolean, view?: Window | null, detail?: number, screenX?: number, screenY?: number, clientX?: number, clientY?: number, ctrlKey?: boolean, altKey?: boolean, shiftKey?: boolean, metaKey?: boolean, button?: number, relatedTarget?: EventTarget | null, axis?: number): void;
    readonly HORIZONTAL_AXIS: 1;
    readonly VERTICAL_AXIS: 2;
}

/** @deprecated */
declare var MouseScrollEvent: {
    prototype: MouseScrollEvent;
    new(): MouseScrollEvent;
    readonly HORIZONTAL_AXIS: 1;
    readonly VERTICAL_AXIS: 2;
    isInstance(obj): obj is MouseScrollEvent;
};

interface MozApplicationEvent extends Event {
    readonly application: DOMApplication | null;
}

declare var MozApplicationEvent: {
    prototype: MozApplicationEvent;
    new(type: string, eventInitDict?: MozApplicationEventInit): MozApplicationEvent;
    isInstance(obj): obj is MozApplicationEvent;
};

interface MozCanvasPrintState {
    readonly context: nsISupports;
    done(): void;
}

declare var MozCanvasPrintState: {
    prototype: MozCanvasPrintState;
    new(): MozCanvasPrintState;
    isInstance(obj): obj is MozCanvasPrintState;
};

interface MozDocumentMatcher {
    readonly allFrames: boolean;
    readonly checkPermissions: boolean;
    readonly excludeMatches: MatchPatternSet | null;
    readonly extension: WebExtensionPolicy | null;
    readonly frameID: number | null;
    readonly matchAboutBlank: boolean;
    readonly matches: MatchPatternSet;
    readonly originAttributesPatterns: any;
    matchesURI(uri: URI): boolean;
    matchesWindowGlobal(windowGlobal: WindowGlobalChild, ignorePermissions?: boolean): boolean;
}

declare var MozDocumentMatcher: {
    prototype: MozDocumentMatcher;
    new(options: MozDocumentMatcherInit): MozDocumentMatcher;
    isInstance(obj): obj is MozDocumentMatcher;
};

interface MozDocumentObserver {
    disconnect(): void;
    observe(matchers: MozDocumentMatcher[]): void;
}

declare var MozDocumentObserver: {
    prototype: MozDocumentObserver;
    new(callbacks: MozDocumentCallback): MozDocumentObserver;
    isInstance(obj): obj is MozDocumentObserver;
};

interface MozEditableElement {
    readonly editor: nsIEditor | null;
    readonly hasEditor: boolean;
    readonly isInputEventTarget: boolean;
    setUserInput(input: string): void;
}

interface MozFrameLoaderOwner {
    readonly browsingContext: BrowsingContext | null;
    readonly frameLoader: FrameLoader | null;
    changeRemoteness(aOptions: RemotenessOptions): void;
    swapFrameLoaders(aOtherLoaderOwner: XULFrameElement): void;
    swapFrameLoaders(aOtherLoaderOwner: HTMLIFrameElement): void;
}

interface MozImageLoadingContent {
    readonly currentRequestFinalURI: URI | null;
    readonly currentURI: URI | null;
    loadingEnabled: boolean;
    addObserver(aObserver: imgINotificationObserver): void;
    forceReload(aNotify?: boolean): void;
    getRequest(aRequestType: number): imgIRequest | null;
    getRequestType(aRequest: imgIRequest): number;
    removeObserver(aObserver: imgINotificationObserver): void;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
}

interface MozObjectLoadingContent {
    readonly actualType: string;
    readonly displayedType: number;
    readonly runID: number;
    readonly srcURI: URI | null;
    getContentTypeForMIMEType(aMimeType: string): number;
    getPluginAttributes(): MozPluginParameter[];
    getPluginParameters(): MozPluginParameter[];
    reload(aClearActivation: boolean): void;
    skipFakePlugins(): void;
    readonly TYPE_LOADING: 0;
    readonly TYPE_IMAGE: 1;
    readonly TYPE_FALLBACK: 2;
    readonly TYPE_FAKE_PLUGIN: 3;
    readonly TYPE_DOCUMENT: 4;
    readonly TYPE_NULL: 5;
}

interface MozObserver {
}

declare var MozObserver: {
    prototype: MozObserver;
    new(): MozObserver;
    isInstance(obj): obj is MozObserver;
};

interface MozQueryInterface {
}

declare var MozQueryInterface: {
    prototype: MozQueryInterface;
    new(): MozQueryInterface;
    isInstance(obj): obj is MozQueryInterface;
};

interface MozSharedMap extends EventTarget {
    get(name: string): StructuredClonable;
    has(name: string): boolean;
    forEach(callbackfn: (value: StructuredClonable, key: string, parent: MozSharedMap) => void, thisArg?: any): void;
}

declare var MozSharedMap: {
    prototype: MozSharedMap;
    new(): MozSharedMap;
    isInstance(obj): obj is MozSharedMap;
};

interface MozSharedMapChangeEvent extends Event {
    readonly changedKeys: string[];
}

declare var MozSharedMapChangeEvent: {
    prototype: MozSharedMapChangeEvent;
    new(): MozSharedMapChangeEvent;
    isInstance(obj): obj is MozSharedMapChangeEvent;
};

interface MozStorageAsyncStatementParams {
    readonly length: number;
    [index: number]: any;
    [name: string]: any;
}

declare var MozStorageAsyncStatementParams: {
    prototype: MozStorageAsyncStatementParams;
    new(): MozStorageAsyncStatementParams;
    isInstance(obj): obj is MozStorageAsyncStatementParams;
};

interface MozStorageStatementParams {
    readonly length: number;
    [index: number]: any;
    [name: string]: any;
}

declare var MozStorageStatementParams: {
    prototype: MozStorageStatementParams;
    new(): MozStorageStatementParams;
    isInstance(obj): obj is MozStorageStatementParams;
};

interface MozStorageStatementRow {
    [name: string]: any;
}

declare var MozStorageStatementRow: {
    prototype: MozStorageStatementRow;
    new(): MozStorageStatementRow;
    isInstance(obj): obj is MozStorageStatementRow;
};

interface MozWritableSharedMap extends MozSharedMap {
    delete(name: string): void;
    flush(): void;
    set(name: string, value: StructuredClonable): void;
}

declare var MozWritableSharedMap: {
    prototype: MozWritableSharedMap;
    new(): MozWritableSharedMap;
    isInstance(obj): obj is MozWritableSharedMap;
};

/**
 * Provides event properties that are specific to modifications to the Document Object Model (DOM) hierarchy and nodes.
 * @deprecated DOM4 [DOM] provides a new mechanism using a MutationObserver interface which addresses the use cases that mutation events solve, but in a more performant manner. Thus, this specification describes mutation events for reference and completeness of legacy behavior, but deprecates the use of the MutationEvent interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent)
 */
interface MutationEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/attrChange)
     */
    readonly attrChange: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/attrName)
     */
    readonly attrName: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/newValue)
     */
    readonly newValue: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/prevValue)
     */
    readonly prevValue: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/relatedNode)
     */
    readonly relatedNode: Node | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationEvent/initMutationEvent)
     */
    initMutationEvent(type: string, canBubble?: boolean, cancelable?: boolean, relatedNode?: Node | null, prevValue?: string, newValue?: string, attrName?: string, attrChange?: number): void;
    readonly MODIFICATION: 1;
    readonly ADDITION: 2;
    readonly REMOVAL: 3;
    readonly SMIL: 4;
}

/** @deprecated */
declare var MutationEvent: {
    prototype: MutationEvent;
    new(): MutationEvent;
    readonly MODIFICATION: 1;
    readonly ADDITION: 2;
    readonly REMOVAL: 3;
    readonly SMIL: 4;
    isInstance(obj): obj is MutationEvent;
};

/**
 * Provides the ability to watch for changes being made to the DOM tree. It is designed as a replacement for the older Mutation Events feature which was part of the DOM3 Events specification.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationObserver)
 */
interface MutationObserver {
    mergeAttributeRecords: boolean;
    readonly mutationCallback: MutationCallback;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationObserver/disconnect) */
    disconnect(): void;
    getObservingInfo(): (MutationObservingInfo | null)[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationObserver/observe) */
    observe(target: Node, options?: MutationObserverInit): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationObserver/takeRecords) */
    takeRecords(): MutationRecord[];
}

declare var MutationObserver: {
    prototype: MutationObserver;
    new(mutationCallback: MutationCallback): MutationObserver;
    isInstance(obj): obj is MutationObserver;
};

/**
 * A MutationRecord represents an individual DOM mutation. It is the object that is passed to MutationObserver's callback.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord)
 */
interface MutationRecord {
    readonly addedAnimations: Animation[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/addedNodes) */
    readonly addedNodes: NodeList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/attributeName) */
    readonly attributeName: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/attributeNamespace) */
    readonly attributeNamespace: string | null;
    readonly changedAnimations: Animation[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/nextSibling) */
    readonly nextSibling: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/oldValue) */
    readonly oldValue: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/previousSibling) */
    readonly previousSibling: Node | null;
    readonly removedAnimations: Animation[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/removedNodes) */
    readonly removedNodes: NodeList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/target) */
    readonly target: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/MutationRecord/type) */
    readonly type: string;
}

declare var MutationRecord: {
    prototype: MutationRecord;
    new(): MutationRecord;
    isInstance(obj): obj is MutationRecord;
};

/**
 * A collection of Attr objects. Objects inside a NamedNodeMap are not in any particular order, unlike NodeList, although they may be accessed by an index as in an array.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap)
 */
interface NamedNodeMap {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/getNamedItem) */
    getNamedItem(name: string): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/getNamedItemNS) */
    getNamedItemNS(namespaceURI: string | null, localName: string): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/item) */
    item(index: number): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/removeNamedItem) */
    removeNamedItem(name: string): Attr;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/removeNamedItemNS) */
    removeNamedItemNS(namespaceURI: string | null, localName: string): Attr;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/setNamedItem) */
    setNamedItem(arg: Attr): Attr | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NamedNodeMap/setNamedItemNS) */
    setNamedItemNS(arg: Attr): Attr | null;
    [index: number]: Attr;
}

declare var NamedNodeMap: {
    prototype: NamedNodeMap;
    new(): NamedNodeMap;
    isInstance(obj): obj is NamedNodeMap;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigationPreloadManager)
 */
interface NavigationPreloadManager {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigationPreloadManager/disable) */
    disable(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigationPreloadManager/enable) */
    enable(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigationPreloadManager/getState) */
    getState(): Promise<NavigationPreloadState>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigationPreloadManager/setHeaderValue) */
    setHeaderValue(value: string): Promise<void>;
}

declare var NavigationPreloadManager: {
    prototype: NavigationPreloadManager;
    new(): NavigationPreloadManager;
    isInstance(obj): obj is NavigationPreloadManager;
};

/**
 * The state and the identity of the user agent. It allows scripts to query it and to register themselves to carry on some activities.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator)
 */
interface Navigator extends GlobalPrivacyControl, NavigatorAutomationInformation, NavigatorConcurrentHardware, NavigatorContentUtils, NavigatorGPU, NavigatorGeolocation, NavigatorID, NavigatorLanguage, NavigatorLocks, NavigatorOnLine, NavigatorStorage {
    /**
     * @deprecated
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/activeVRDisplays)
     */
    readonly activeVRDisplays: VRDisplay[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/buildID) */
    readonly buildID: string;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/clipboard)
     */
    readonly clipboard: Clipboard;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/connection) */
    readonly connection: NetworkInformation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/cookieEnabled) */
    readonly cookieEnabled: boolean;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/credentials)
     */
    readonly credentials: CredentialsContainer;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/doNotTrack)
     */
    readonly doNotTrack: string;
    readonly isWebVRContentDetected: boolean;
    readonly isWebVRContentPresenting: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/maxTouchPoints) */
    readonly maxTouchPoints: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/mediaCapabilities) */
    readonly mediaCapabilities: MediaCapabilities;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/mediaDevices) */
    readonly mediaDevices: MediaDevices;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/mediaSession) */
    readonly mediaSession: MediaSession;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NavigatorPlugins/mimeTypes)
     */
    readonly mimeTypes: MimeTypeArray;
    readonly mozAddonManager: AddonManager;
    readonly mozTCPSocket: LegacyMozTCPSocket;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/oscpu)
     */
    readonly oscpu: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/pdfViewerEnabled) */
    readonly pdfViewerEnabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/permissions) */
    readonly permissions: Permissions;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/plugins)
     */
    readonly plugins: PluginArray;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/productSub)
     */
    readonly productSub: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/serviceWorker) */
    readonly serviceWorker: ServiceWorkerContainer;
    readonly testTrialGatedAttribute: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/userActivation) */
    readonly userActivation: UserActivation;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/vendor)
     */
    readonly vendor: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/vendorSub)
     */
    readonly vendorSub: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/wakeLock) */
    readonly wakeLock: WakeLock;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/xr)
     */
    readonly xr: XRSystem;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/canShare)
     */
    canShare(data?: ShareData): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getAutoplayPolicy) */
    getAutoplayPolicy(type: AutoplayPolicyMediaType): AutoplayPolicy;
    getAutoplayPolicy(element: HTMLMediaElement): AutoplayPolicy;
    getAutoplayPolicy(context: AudioContext): AutoplayPolicy;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getBattery) */
    getBattery(): Promise<BatteryManager>;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getGamepads)
     */
    getGamepads(): (Gamepad | null)[];
    /**
     * @deprecated
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getVRDisplays)
     */
    getVRDisplays(): Promise<VRDisplay[]>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/javaEnabled)
     */
    javaEnabled(): boolean;
    /**
     * @deprecated This is a legacy alias of `getUserMedia`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/getUserMedia)
     */
    mozGetUserMedia(constraints: MediaStreamConstraints, successCallback: NavigatorUserMediaSuccessCallback, errorCallback: NavigatorUserMediaErrorCallback): void;
    requestGamepadServiceTest(): GamepadServiceTest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/requestMIDIAccess) */
    requestMIDIAccess(options?: MIDIOptions): Promise<MIDIAccess>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/requestMediaKeySystemAccess) */
    requestMediaKeySystemAccess(keySystem: string, supportedConfigurations: MediaKeySystemConfiguration[]): Promise<MediaKeySystemAccess>;
    requestVRPresentation(display: VRDisplay): void;
    requestVRServiceTest(): VRServiceTest;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon) */
    sendBeacon(url: string, data?: BodyInit | null): boolean;
    setVibrationPermission(permitted: boolean, persistent?: boolean): void;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/share)
     */
    share(data?: ShareData): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/vibrate) */
    vibrate(duration: number): boolean;
    vibrate(pattern: number[]): boolean;
}

declare var Navigator: {
    prototype: Navigator;
    new(): Navigator;
    isInstance(obj): obj is Navigator;
};

interface NavigatorAutomationInformation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/webdriver) */
    readonly webdriver: boolean;
}

interface NavigatorConcurrentHardware {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/hardwareConcurrency) */
    readonly hardwareConcurrency: number;
}

interface NavigatorContentUtils {
    checkProtocolHandlerAllowed(scheme: string, handlerURI: URI, documentURI: URI): void;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/registerProtocolHandler)
     */
    registerProtocolHandler(scheme: string, url: string): void;
}

interface NavigatorGPU {
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/gpu)
     */
    readonly gpu: GPU;
}

interface NavigatorGeolocation {
    readonly geolocation: Geolocation;
}

interface NavigatorID {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/appCodeName)
     */
    readonly appCodeName: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/appName)
     */
    readonly appName: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/appVersion)
     */
    readonly appVersion: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/platform)
     */
    readonly platform: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/product)
     */
    readonly product: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/userAgent) */
    readonly userAgent: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/taintEnabled)
     */
    taintEnabled(): boolean;
}

interface NavigatorLanguage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/language) */
    readonly language: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/languages) */
    readonly languages: string[];
}

/** Available only in secure contexts. */
interface NavigatorLocks {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/locks) */
    readonly locks: LockManager;
}

interface NavigatorOnLine {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/onLine) */
    readonly onLine: boolean;
}

/** Available only in secure contexts. */
interface NavigatorStorage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Navigator/storage) */
    readonly storage: StorageManager;
}

interface NetworkInformationEventMap {
    "typechange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NetworkInformation) */
interface NetworkInformation extends EventTarget {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NetworkInformation/typechange_event)
     */
    ontypechange: ((this: NetworkInformation, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NetworkInformation/type) */
    readonly type: ConnectionType;
    addEventListener<K extends keyof NetworkInformationEventMap>(type: K, listener: (this: NetworkInformation, ev: NetworkInformationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof NetworkInformationEventMap>(type: K, listener: (this: NetworkInformation, ev: NetworkInformationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var NetworkInformation: {
    prototype: NetworkInformation;
    new(): NetworkInformation;
    isInstance(obj): obj is NetworkInformation;
};

/**
 * Node is an interface from which a number of DOM API object types inherit. It allows those types to be treated similarly; for example, inheriting the same set of methods, or being tested in the same way.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node)
 */
interface Node extends EventTarget {
    readonly accessibleNode: AccessibleNode | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/baseURI) */
    readonly baseURI: string | null;
    readonly baseURIObject: URI | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/childNodes) */
    readonly childNodes: NodeList;
    readonly containingShadowRoot: ShadowRoot | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/firstChild) */
    readonly firstChild: Node | null;
    readonly flattenedTreeParentNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/isConnected) */
    readonly isConnected: boolean;
    readonly isNativeAnonymous: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/lastChild) */
    readonly lastChild: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/nextSibling) */
    readonly nextSibling: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/nodeName) */
    readonly nodeName: string;
    readonly nodePrincipal: Principal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/nodeType) */
    readonly nodeType: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/nodeValue) */
    nodeValue: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/ownerDocument) */
    readonly ownerDocument: Document | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/parentElement) */
    readonly parentElement: Element | null;
    readonly parentFlexElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/parentNode) */
    readonly parentNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/previousSibling) */
    readonly previousSibling: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/textContent) */
    textContent: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/appendChild) */
    appendChild(node: Node): Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/cloneNode) */
    cloneNode(deep?: boolean): Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/compareDocumentPosition) */
    compareDocumentPosition(other: Node): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/contains) */
    contains(other: Node | null): boolean;
    generateXPath(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/getRootNode) */
    getRootNode(options?: GetRootNodeOptions): Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/hasChildNodes) */
    hasChildNodes(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/insertBefore) */
    insertBefore(node: Node, child: Node | null): Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/isDefaultNamespace) */
    isDefaultNamespace(namespace: string | null): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/isEqualNode) */
    isEqualNode(node: Node | null): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/isSameNode) */
    isSameNode(node: Node | null): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/lookupNamespaceURI) */
    lookupNamespaceURI(prefix: string | null): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/lookupPrefix) */
    lookupPrefix(namespace: string | null): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/normalize) */
    normalize(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/removeChild) */
    removeChild(child: Node): Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/replaceChild) */
    replaceChild(node: Node, child: Node): Node;
    readonly ELEMENT_NODE: 1;
    readonly ATTRIBUTE_NODE: 2;
    readonly TEXT_NODE: 3;
    readonly CDATA_SECTION_NODE: 4;
    readonly ENTITY_REFERENCE_NODE: 5;
    readonly ENTITY_NODE: 6;
    readonly PROCESSING_INSTRUCTION_NODE: 7;
    readonly COMMENT_NODE: 8;
    readonly DOCUMENT_NODE: 9;
    readonly DOCUMENT_TYPE_NODE: 10;
    readonly DOCUMENT_FRAGMENT_NODE: 11;
    readonly NOTATION_NODE: 12;
    readonly DOCUMENT_POSITION_DISCONNECTED: 0x01;
    readonly DOCUMENT_POSITION_PRECEDING: 0x02;
    readonly DOCUMENT_POSITION_FOLLOWING: 0x04;
    readonly DOCUMENT_POSITION_CONTAINS: 0x08;
    readonly DOCUMENT_POSITION_CONTAINED_BY: 0x10;
    readonly DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 0x20;
}

declare var Node: {
    prototype: Node;
    new(): Node;
    readonly ELEMENT_NODE: 1;
    readonly ATTRIBUTE_NODE: 2;
    readonly TEXT_NODE: 3;
    readonly CDATA_SECTION_NODE: 4;
    readonly ENTITY_REFERENCE_NODE: 5;
    readonly ENTITY_NODE: 6;
    readonly PROCESSING_INSTRUCTION_NODE: 7;
    readonly COMMENT_NODE: 8;
    readonly DOCUMENT_NODE: 9;
    readonly DOCUMENT_TYPE_NODE: 10;
    readonly DOCUMENT_FRAGMENT_NODE: 11;
    readonly NOTATION_NODE: 12;
    readonly DOCUMENT_POSITION_DISCONNECTED: 0x01;
    readonly DOCUMENT_POSITION_PRECEDING: 0x02;
    readonly DOCUMENT_POSITION_FOLLOWING: 0x04;
    readonly DOCUMENT_POSITION_CONTAINS: 0x08;
    readonly DOCUMENT_POSITION_CONTAINED_BY: 0x10;
    readonly DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 0x20;
    isInstance(obj): obj is Node;
};

/**
 * An iterator over the members of a list of the nodes in a subtree of the DOM. The nodes will be returned in document order.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator)
 */
interface NodeIterator {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/filter) */
    readonly filter: NodeFilter | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/pointerBeforeReferenceNode) */
    readonly pointerBeforeReferenceNode: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/referenceNode) */
    readonly referenceNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/root) */
    readonly root: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/whatToShow) */
    readonly whatToShow: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/detach)
     */
    detach(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/nextNode) */
    nextNode(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeIterator/previousNode) */
    previousNode(): Node | null;
}

declare var NodeIterator: {
    prototype: NodeIterator;
    new(): NodeIterator;
    isInstance(obj): obj is NodeIterator;
};

/**
 * NodeList objects are collections of nodes, usually returned by properties such as Node.childNodes and methods such as document.querySelectorAll().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeList)
 */
interface NodeList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeList/length) */
    readonly length: number;
    /**
     * Performs the specified action for each node in an list.
     * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the list.
     * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
     */
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NodeList/item) */
    item(index: number): Node | null;
    forEach(callbackfn: (value: Node | null, key: number, parent: NodeList) => void, thisArg?: any): void;
    [index: number]: Node;
}

declare var NodeList: {
    prototype: NodeList;
    new(): NodeList;
    isInstance(obj): obj is NodeList;
};

interface NodeListOf {
    /**
     * Performs the specified action for each node in an list.
     * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the list.
     * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
     */
}

declare var NodeListOf: {
    prototype: NodeListOf;
    new(): NodeListOf;
    isInstance(obj): obj is NodeListOf;
};

interface NonDocumentTypeChildNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/nextElementSibling) */
    readonly nextElementSibling: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/previousElementSibling) */
    readonly previousElementSibling: Element | null;
}

interface NotificationEventMap {
    "click": Event;
    "close": Event;
    "error": ErrorEvent;
    "show": Event;
}

/**
 * This Notifications API interface is used to configure and display desktop notifications to the user.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification)
 */
interface Notification extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/body) */
    readonly body: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/data) */
    readonly data: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/dir) */
    readonly dir: NotificationDirection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/icon) */
    readonly icon: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/lang) */
    readonly lang: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/click_event) */
    onclick: ((this: Notification, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/close_event) */
    onclose: ((this: Notification, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/show_event) */
    onshow: ((this: Notification, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/requireInteraction) */
    readonly requireInteraction: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/silent) */
    readonly silent: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/tag) */
    readonly tag: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/title) */
    readonly title: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/vibrate) */
    readonly vibrate: number[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/close) */
    close(): void;
    addEventListener<K extends keyof NotificationEventMap>(type: K, listener: (this: Notification, ev: NotificationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof NotificationEventMap>(type: K, listener: (this: Notification, ev: NotificationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Notification: {
    prototype: Notification;
    new(title: string, options?: NotificationOptions): Notification;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/permission_static) */
    readonly permission: NotificationPermission;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Notification/requestPermission_static) */
    requestPermission(permissionCallback?: NotificationPermissionCallback): Promise<NotificationPermission>;
    isInstance(obj): obj is Notification;
};

/**
 * The parameter passed into the onnotificationclick handler, the NotificationEvent interface represents a notification click event that is dispatched on the ServiceWorkerGlobalScope of a ServiceWorker.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/NotificationEvent)
 */
interface NotificationEvent extends ExtendableEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/NotificationEvent/notification) */
    readonly notification: Notification;
}

declare var NotificationEvent: {
    prototype: NotificationEvent;
    new(type: string, eventInitDict: NotificationEventInit): NotificationEvent;
    isInstance(obj): obj is NotificationEvent;
};

interface NotifyPaintEvent extends Event {
    readonly boundingClientRect: DOMRect;
    readonly clientRects: DOMRectList;
    readonly paintRequests: PaintRequestList;
    readonly paintTimeStamp: DOMHighResTimeStamp;
    readonly transactionId: number;
}

declare var NotifyPaintEvent: {
    prototype: NotifyPaintEvent;
    new(): NotifyPaintEvent;
    isInstance(obj): obj is NotifyPaintEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed) */
interface OES_draw_buffers_indexed {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/blendEquationSeparateiOES) */
    blendEquationSeparateiOES(buf: GLuint, modeRGB: GLenum, modeAlpha: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/blendEquationiOES) */
    blendEquationiOES(buf: GLuint, mode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/blendFuncSeparateiOES) */
    blendFuncSeparateiOES(buf: GLuint, srcRGB: GLenum, dstRGB: GLenum, srcAlpha: GLenum, dstAlpha: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/blendFunciOES) */
    blendFunciOES(buf: GLuint, src: GLenum, dst: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/colorMaskiOES) */
    colorMaskiOES(buf: GLuint, r: GLboolean, g: GLboolean, b: GLboolean, a: GLboolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/disableiOES) */
    disableiOES(target: GLenum, index: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_draw_buffers_indexed/enableiOES) */
    enableiOES(target: GLenum, index: GLuint): void;
}

/**
 * The OES_element_index_uint extension is part of the WebGL API and adds support for gl.UNSIGNED_INT types to WebGLRenderingContext.drawElements().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_element_index_uint)
 */
interface OES_element_index_uint {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_fbo_render_mipmap) */
interface OES_fbo_render_mipmap {
}

/**
 * The OES_standard_derivatives extension is part of the WebGL API and adds the GLSL derivative functions dFdx, dFdy, and fwidth.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_standard_derivatives)
 */
interface OES_standard_derivatives {
    readonly FRAGMENT_SHADER_DERIVATIVE_HINT_OES: 0x8B8B;
}

/**
 * The OES_texture_float extension is part of the WebGL API and exposes floating-point pixel types for textures.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_float)
 */
interface OES_texture_float {
}

/**
 * The OES_texture_float_linear extension is part of the WebGL API and allows linear filtering with floating-point pixel types for textures.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_float_linear)
 */
interface OES_texture_float_linear {
}

/**
 * The OES_texture_half_float extension is part of the WebGL API and adds texture formats with 16- (aka half float) and 32-bit floating-point components.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_half_float)
 */
interface OES_texture_half_float {
    readonly HALF_FLOAT_OES: 0x8D61;
}

/**
 * The OES_texture_half_float_linear extension is part of the WebGL API and allows linear filtering with half floating-point pixel types for textures.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_texture_half_float_linear)
 */
interface OES_texture_half_float_linear {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object) */
interface OES_vertex_array_object {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/bindVertexArrayOES) */
    bindVertexArrayOES(arrayObject: WebGLVertexArrayObject | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/createVertexArrayOES) */
    createVertexArrayOES(): WebGLVertexArrayObject | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/deleteVertexArrayOES) */
    deleteVertexArrayOES(arrayObject: WebGLVertexArrayObject | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OES_vertex_array_object/isVertexArrayOES) */
    isVertexArrayOES(arrayObject: WebGLVertexArrayObject | null): GLboolean;
    readonly VERTEX_ARRAY_BINDING_OES: 0x85B5;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OVR_multiview2) */
interface OVR_multiview2 {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OVR_multiview2/framebufferTextureMultiviewOVR) */
    framebufferTextureMultiviewOVR(target: GLenum, attachment: GLenum, texture: WebGLTexture | null, level: GLint, baseViewIndex: GLint, numViews: GLsizei): void;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_NUM_VIEWS_OVR: 0x9630;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_BASE_VIEW_INDEX_OVR: 0x9632;
    readonly MAX_VIEWS_OVR: 0x9631;
    readonly FRAMEBUFFER_INCOMPLETE_VIEW_TARGETS_OVR: 0x9633;
}

/**
 * The Web Audio API OfflineAudioCompletionEvent interface represents events that occur when the processing of an OfflineAudioContext is terminated. The complete event implements this interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioCompletionEvent)
 */
interface OfflineAudioCompletionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioCompletionEvent/renderedBuffer) */
    readonly renderedBuffer: AudioBuffer;
}

declare var OfflineAudioCompletionEvent: {
    prototype: OfflineAudioCompletionEvent;
    new(type: string, eventInitDict: OfflineAudioCompletionEventInit): OfflineAudioCompletionEvent;
    isInstance(obj): obj is OfflineAudioCompletionEvent;
};

interface OfflineAudioContextEventMap extends BaseAudioContextEventMap {
    "complete": Event;
}

/**
 * An AudioContext interface representing an audio-processing graph built from linked together AudioNodes. In contrast with a standard AudioContext, an OfflineAudioContext doesn't render the audio to the device hardware; instead, it generates it, as fast as it can, and outputs the result to an AudioBuffer.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext)
 */
interface OfflineAudioContext extends BaseAudioContext {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext/complete_event) */
    oncomplete: ((this: OfflineAudioContext, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OfflineAudioContext/startRendering) */
    startRendering(): Promise<AudioBuffer>;
    addEventListener<K extends keyof OfflineAudioContextEventMap>(type: K, listener: (this: OfflineAudioContext, ev: OfflineAudioContextEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof OfflineAudioContextEventMap>(type: K, listener: (this: OfflineAudioContext, ev: OfflineAudioContextEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var OfflineAudioContext: {
    prototype: OfflineAudioContext;
    new(contextOptions: OfflineAudioContextOptions): OfflineAudioContext;
    new(numberOfChannels: number, length: number, sampleRate: number): OfflineAudioContext;
    isInstance(obj): obj is OfflineAudioContext;
};

interface OffscreenCanvasEventMap {
    "contextlost": Event;
    "contextrestored": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas) */
interface OffscreenCanvas extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/height) */
    height: number;
    oncontextlost: ((this: OffscreenCanvas, ev: Event) => any) | null;
    oncontextrestored: ((this: OffscreenCanvas, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/width) */
    width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/convertToBlob) */
    convertToBlob(options?: ImageEncodeOptions): Promise<Blob>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/getContext) */
    getContext(contextId: OffscreenRenderingContextId, contextOptions?: any): OffscreenRenderingContext | null;
    /**
     * @deprecated This is a legacy alias of `convertToBlob`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/convertToBlob)
     */
    toBlob(type?: string, encoderOptions?: any): Promise<Blob>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvas/transferToImageBitmap) */
    transferToImageBitmap(): ImageBitmap;
    addEventListener<K extends keyof OffscreenCanvasEventMap>(type: K, listener: (this: OffscreenCanvas, ev: OffscreenCanvasEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof OffscreenCanvasEventMap>(type: K, listener: (this: OffscreenCanvas, ev: OffscreenCanvasEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var OffscreenCanvas: {
    prototype: OffscreenCanvas;
    new(width: number, height: number): OffscreenCanvas;
    isInstance(obj): obj is OffscreenCanvas;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvasRenderingContext2D) */
interface OffscreenCanvasRenderingContext2D extends CanvasCompositing, CanvasDrawImage, CanvasDrawPath, CanvasFillStrokeStyles, CanvasFilters, CanvasImageData, CanvasImageSmoothing, CanvasPathDrawingStyles, CanvasPathMethods, CanvasRect, CanvasShadowStyles, CanvasState, CanvasText, CanvasTextDrawingStyles, CanvasTransform {
    readonly canvas: OffscreenCanvas;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OffscreenCanvasRenderingContext2D/commit) */
    commit(): void;
}

declare var OffscreenCanvasRenderingContext2D: {
    prototype: OffscreenCanvasRenderingContext2D;
    new(): OffscreenCanvasRenderingContext2D;
    isInstance(obj): obj is OffscreenCanvasRenderingContext2D;
};

interface OnErrorEventHandlerForNodesEventMap {
    "error": ErrorEvent;
}

interface OnErrorEventHandlerForNodes {
    onerror: OnErrorEventHandler;
    addEventListener<K extends keyof OnErrorEventHandlerForNodesEventMap>(type: K, listener: (this: OnErrorEventHandlerForNodes, ev: OnErrorEventHandlerForNodesEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof OnErrorEventHandlerForNodesEventMap>(type: K, listener: (this: OnErrorEventHandlerForNodes, ev: OnErrorEventHandlerForNodesEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

interface OnErrorEventHandlerForWindowEventMap {
    "error": ErrorEvent;
}

interface OnErrorEventHandlerForWindow {
    onerror: OnErrorEventHandler;
    addEventListener<K extends keyof OnErrorEventHandlerForWindowEventMap>(type: K, listener: (this: OnErrorEventHandlerForWindow, ev: OnErrorEventHandlerForWindowEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof OnErrorEventHandlerForWindowEventMap>(type: K, listener: (this: OnErrorEventHandlerForWindow, ev: OnErrorEventHandlerForWindowEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/**
 * The OscillatorNode interface represents a periodic waveform, such as a sine wave. It is an AudioScheduledSourceNode audio-processing module that causes a specified frequency of a given wave to be created—in effect, a constant tone.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/OscillatorNode)
 */
interface OscillatorNode extends AudioScheduledSourceNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OscillatorNode/detune) */
    readonly detune: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OscillatorNode/frequency) */
    readonly frequency: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OscillatorNode/type) */
    type: OscillatorType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/OscillatorNode/setPeriodicWave) */
    setPeriodicWave(periodicWave: PeriodicWave): void;
    addEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: OscillatorNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AudioScheduledSourceNodeEventMap>(type: K, listener: (this: OscillatorNode, ev: AudioScheduledSourceNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var OscillatorNode: {
    prototype: OscillatorNode;
    new(context: BaseAudioContext, options?: OscillatorOptions): OscillatorNode;
    isInstance(obj): obj is OscillatorNode;
};

/**
 * The PageTransitionEvent is fired when a document is being loaded or unloaded.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PageTransitionEvent)
 */
interface PageTransitionEvent extends Event {
    readonly inFrameSwap: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PageTransitionEvent/persisted) */
    readonly persisted: boolean;
}

declare var PageTransitionEvent: {
    prototype: PageTransitionEvent;
    new(type: string, eventInitDict?: PageTransitionEventInit): PageTransitionEvent;
    isInstance(obj): obj is PageTransitionEvent;
};

interface PaintRequest {
    readonly clientRect: DOMRect;
    readonly reason: string;
}

declare var PaintRequest: {
    prototype: PaintRequest;
    new(): PaintRequest;
    isInstance(obj): obj is PaintRequest;
};

interface PaintRequestList {
    readonly length: number;
    item(index: number): PaintRequest | null;
    [index: number]: PaintRequest;
}

declare var PaintRequestList: {
    prototype: PaintRequestList;
    new(): PaintRequestList;
    isInstance(obj): obj is PaintRequestList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaintWorkletGlobalScope) */
interface PaintWorkletGlobalScope extends WorkletGlobalScope {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaintWorkletGlobalScope/registerPaint) */
    registerPaint(name: string, paintCtor: VoidFunction): void;
}

declare var PaintWorkletGlobalScope: {
    prototype: PaintWorkletGlobalScope;
    new(): PaintWorkletGlobalScope;
    isInstance(obj): obj is PaintWorkletGlobalScope;
};

/**
 * A PannerNode always has exactly one input and one output: the input can be mono or stereo but the output is always stereo (2 channels); you can't have panning effects without at least two audio channels!
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode)
 */
interface PannerNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/coneInnerAngle) */
    coneInnerAngle: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/coneOuterAngle) */
    coneOuterAngle: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/coneOuterGain) */
    coneOuterGain: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/distanceModel) */
    distanceModel: DistanceModelType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/maxDistance) */
    maxDistance: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/orientationX) */
    readonly orientationX: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/orientationY) */
    readonly orientationY: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/orientationZ) */
    readonly orientationZ: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/panningModel) */
    panningModel: PanningModelType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/positionX) */
    readonly positionX: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/positionY) */
    readonly positionY: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/positionZ) */
    readonly positionZ: AudioParam;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/refDistance) */
    refDistance: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/rolloffFactor) */
    rolloffFactor: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/setOrientation)
     */
    setOrientation(x: number, y: number, z: number): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PannerNode/setPosition)
     */
    setPosition(x: number, y: number, z: number): void;
}

declare var PannerNode: {
    prototype: PannerNode;
    new(context: BaseAudioContext, options?: PannerOptions): PannerNode;
    isInstance(obj): obj is PannerNode;
};

interface ParentNode {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/childElementCount) */
    readonly childElementCount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/children) */
    readonly children: HTMLCollection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/firstElementChild) */
    readonly firstElementChild: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/lastElementChild) */
    readonly lastElementChild: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/append) */
    append(...nodes: (Node | string)[]): void;
    getElementsByAttribute(name: string, value: string | null): HTMLCollection;
    getElementsByAttributeNS(namespaceURI: string | null, name: string, value: string | null): HTMLCollection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/prepend) */
    prepend(...nodes: (Node | string)[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/replaceChildren) */
    replaceChildren(...nodes: (Node | string)[]): void;
}

interface ParentProcessMessageManager extends MessageBroadcaster, GlobalProcessScriptLoader, ProcessScriptLoader {
}

declare var ParentProcessMessageManager: {
    prototype: ParentProcessMessageManager;
    new(): ParentProcessMessageManager;
    isInstance(obj): obj is ParentProcessMessageManager;
};

/**
 * This Canvas 2D API interface is used to declare a path that can then be used on a CanvasRenderingContext2D object. The path methods of the CanvasRenderingContext2D interface are also present on this interface, which gives you the convenience of being able to retain and replay your path whenever desired.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Path2D)
 */
interface Path2D extends CanvasPathMethods {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Path2D/addPath) */
    addPath(path: Path2D, transform?: DOMMatrix2DInit): void;
}

declare var Path2D: {
    prototype: Path2D;
    new(): Path2D;
    new(other: Path2D): Path2D;
    new(pathString: string): Path2D;
    isInstance(obj): obj is Path2D;
};

/**
 * This Payment Request API interface is used to store shipping or payment address information.
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress)
 */
interface PaymentAddress {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/addressLine)
     */
    readonly addressLine: string[];
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/city)
     */
    readonly city: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/country)
     */
    readonly country: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/dependentLocality)
     */
    readonly dependentLocality: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/organization)
     */
    readonly organization: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/phone)
     */
    readonly phone: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/postalCode)
     */
    readonly postalCode: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/recipient)
     */
    readonly recipient: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/region)
     */
    readonly region: string;
    readonly regionCode: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/sortingCode)
     */
    readonly sortingCode: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentAddress/toJSON)
     */
    toJSON(): any;
}

/** @deprecated */
declare var PaymentAddress: {
    prototype: PaymentAddress;
    new(): PaymentAddress;
    isInstance(obj): obj is PaymentAddress;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent)
 */
interface PaymentMethodChangeEvent extends PaymentRequestUpdateEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent/methodDetails) */
    readonly methodDetails: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentMethodChangeEvent/methodName) */
    readonly methodName: string;
}

declare var PaymentMethodChangeEvent: {
    prototype: PaymentMethodChangeEvent;
    new(type: string, eventInitDict?: PaymentMethodChangeEventInit): PaymentMethodChangeEvent;
    isInstance(obj): obj is PaymentMethodChangeEvent;
};

interface PaymentRequestEventMap {
    "merchantvalidation": Event;
    "paymentmethodchange": Event;
    "shippingaddresschange": Event;
    "shippingoptionchange": Event;
}

/**
 * This Payment Request API interface is the primary access point into the API, and lets web content and apps accept payments from the end user.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest)
 */
interface PaymentRequest extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/id) */
    readonly id: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/merchantvalidation_event)
     */
    onmerchantvalidation: ((this: PaymentRequest, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/paymentmethodchange_event) */
    onpaymentmethodchange: ((this: PaymentRequest, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingaddresschange_event)
     */
    onshippingaddresschange: ((this: PaymentRequest, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingoptionchange_event)
     */
    onshippingoptionchange: ((this: PaymentRequest, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingAddress)
     */
    readonly shippingAddress: PaymentAddress | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingOption)
     */
    readonly shippingOption: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/shippingType)
     */
    readonly shippingType: PaymentShippingType | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/abort) */
    abort(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/canMakePayment) */
    canMakePayment(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequest/show) */
    show(detailsPromise?: PaymentDetailsUpdate | PromiseLike<PaymentDetailsUpdate>): Promise<PaymentResponse>;
    addEventListener<K extends keyof PaymentRequestEventMap>(type: K, listener: (this: PaymentRequest, ev: PaymentRequestEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof PaymentRequestEventMap>(type: K, listener: (this: PaymentRequest, ev: PaymentRequestEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var PaymentRequest: {
    prototype: PaymentRequest;
    new(methodData: PaymentMethodData[], details: PaymentDetailsInit, options?: PaymentOptions): PaymentRequest;
    isInstance(obj): obj is PaymentRequest;
};

/**
 * This Payment Request API interface enables a web page to update the details of a PaymentRequest in response to a user action.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent)
 */
interface PaymentRequestUpdateEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent/updateWith) */
    updateWith(detailsPromise: PaymentDetailsUpdate | PromiseLike<PaymentDetailsUpdate>): void;
}

declare var PaymentRequestUpdateEvent: {
    prototype: PaymentRequestUpdateEvent;
    new(type: string, eventInitDict?: PaymentRequestUpdateEventInit): PaymentRequestUpdateEvent;
    isInstance(obj): obj is PaymentRequestUpdateEvent;
};

interface PaymentResponseEventMap {
    "payerdetailchange": Event;
}

/**
 * This Payment Request API interface is returned after a user selects a payment method and approves a payment request.
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse)
 */
interface PaymentResponse extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/details) */
    readonly details: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/methodName) */
    readonly methodName: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerdetailchange_event)
     */
    onpayerdetailchange: ((this: PaymentResponse, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerEmail)
     */
    readonly payerEmail: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerName)
     */
    readonly payerName: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/payerPhone)
     */
    readonly payerPhone: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/requestId) */
    readonly requestId: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/shippingAddress)
     */
    readonly shippingAddress: PaymentAddress | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/shippingOption)
     */
    readonly shippingOption: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/complete) */
    complete(result?: PaymentComplete): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/retry) */
    retry(errorFields?: PaymentValidationErrors): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PaymentResponse/toJSON) */
    toJSON(): any;
    addEventListener<K extends keyof PaymentResponseEventMap>(type: K, listener: (this: PaymentResponse, ev: PaymentResponseEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof PaymentResponseEventMap>(type: K, listener: (this: PaymentResponse, ev: PaymentResponseEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var PaymentResponse: {
    prototype: PaymentResponse;
    new(): PaymentResponse;
    isInstance(obj): obj is PaymentResponse;
};

interface PeerConnectionImpl {
    certificate: RTCCertificate;
    readonly connectionState: RTCPeerConnectionState;
    readonly currentLocalDescription: string;
    readonly currentOfferer: boolean | null;
    readonly currentRemoteDescription: string;
    readonly fingerprint: string;
    readonly iceConnectionState: RTCIceConnectionState;
    readonly iceGatheringState: RTCIceGatheringState;
    id: string;
    peerIdentity: string;
    readonly pendingLocalDescription: string;
    readonly pendingOfferer: boolean | null;
    readonly pendingRemoteDescription: string;
    readonly privacyRequested: boolean;
    readonly sctp: RTCSctpTransport | null;
    readonly signalingState: RTCSignalingState;
    addIceCandidate(candidate: string, mid: string, ufrag: string, level: number | null): void;
    addTransceiver(init: RTCRtpTransceiverInit, kind: string, sendTrack: MediaStreamTrack | null, addTrackMagic: boolean): RTCRtpTransceiver;
    chain(op: ChainedOperation): Promise<any>;
    close(): void;
    closeStreams(): void;
    createAnswer(): void;
    createDataChannel(label: string, protocol: string, type: number, ordered: boolean, maxTime: number, maxNum: number, externalNegotiated: boolean, stream: number): RTCDataChannel;
    createOffer(options?: RTCOfferOptions): void;
    createdSender(sender: RTCRtpSender): boolean;
    disablePacketDump(level: number, type: mozPacketDumpType, sending: boolean): void;
    enablePacketDump(level: number, type: mozPacketDumpType, sending: boolean): void;
    getRemoteStreams(): MediaStream[];
    getStats(selector: MediaStreamTrack | null): Promise<RTCStatsReport>;
    getTransceivers(): RTCRtpTransceiver[];
    initialize(observer: PeerConnectionObserver, window: Window): void;
    onSetDescriptionError(): void;
    onSetDescriptionSuccess(type: RTCSdpType, remote: boolean): Promise<void>;
    pluginCrash(pluginId: number, name: string): boolean;
    restartIce(): void;
    restartIceNoRenegotiationNeeded(): void;
    setConfiguration(config?: RTCConfiguration): void;
    setLocalDescription(action: number, sdp: string): void;
    setRemoteDescription(action: number, sdp: string): void;
    updateNegotiationNeeded(): void;
}

declare var PeerConnectionImpl: {
    prototype: PeerConnectionImpl;
    new(): PeerConnectionImpl;
    isInstance(obj): obj is PeerConnectionImpl;
};

interface PeerConnectionObserver {
    fireNegotiationNeededEvent(): void;
    fireStreamEvent(stream: MediaStream): void;
    fireTrackEvent(receiver: RTCRtpReceiver, streams: MediaStream[]): void;
    notifyDataChannel(channel: RTCDataChannel): void;
    onAddIceCandidateError(error: PCErrorData): void;
    onAddIceCandidateSuccess(): void;
    onCreateAnswerError(error: PCErrorData): void;
    onCreateAnswerSuccess(answer: string): void;
    onCreateOfferError(error: PCErrorData): void;
    onCreateOfferSuccess(offer: string): void;
    onIceCandidate(level: number, mid: string, candidate: string, ufrag: string): void;
    onPacket(level: number, type: mozPacketDumpType, sending: boolean, packet: ArrayBuffer): void;
    onSetDescriptionError(error: PCErrorData): void;
    onSetDescriptionSuccess(): void;
    onStateChange(state: PCObserverStateType): void;
}

declare var PeerConnectionObserver: {
    prototype: PeerConnectionObserver;
    new(domPC: RTCPeerConnection): PeerConnectionObserver;
    isInstance(obj): obj is PeerConnectionObserver;
};

interface PerformanceEventMap {
    "resourcetimingbufferfull": Event;
}

/**
 * Provides access to performance-related information for the current page. It's part of the High Resolution Time API, but is enhanced by the Performance Timeline API, the Navigation Timing API, the User Timing API, and the Resource Timing API.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance)
 */
interface Performance extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/eventCounts) */
    readonly eventCounts: EventCounts;
    readonly mozMemory: any;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/navigation)
     */
    readonly navigation: PerformanceNavigation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/resourcetimingbufferfull_event) */
    onresourcetimingbufferfull: ((this: Performance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/timeOrigin) */
    readonly timeOrigin: DOMHighResTimeStamp;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/timing)
     */
    readonly timing: PerformanceTiming;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/clearMarks) */
    clearMarks(markName?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/clearMeasures) */
    clearMeasures(measureName?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/clearResourceTimings) */
    clearResourceTimings(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/getEntries) */
    getEntries(): PerformanceEntryList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/getEntriesByName) */
    getEntriesByName(name: string, entryType?: string): PerformanceEntryList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/getEntriesByType) */
    getEntriesByType(entryType: string): PerformanceEntryList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/mark) */
    mark(markName: string, markOptions?: PerformanceMarkOptions): PerformanceMark;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/measure) */
    measure(measureName: string, startOrMeasureOptions?: string | PerformanceMeasureOptions, endMark?: string): PerformanceMeasure;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/now) */
    now(): DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/setResourceTimingBufferSize) */
    setResourceTimingBufferSize(maxSize: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Performance/toJSON) */
    toJSON(): any;
    addEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Performance: {
    prototype: Performance;
    new(): Performance;
    isInstance(obj): obj is Performance;
};

/**
 * Encapsulates a single performance metric that is part of the performance timeline. A performance entry can be directly created by making a performance mark or measure (for example by calling the mark() method) at an explicit point in an application. Performance entries are also created in indirect ways such as loading a resource (such as an image).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry)
 */
interface PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry/duration) */
    readonly duration: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry/entryType) */
    readonly entryType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry/startTime) */
    readonly startTime: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEntry/toJSON) */
    toJSON(): any;
}

declare var PerformanceEntry: {
    prototype: PerformanceEntry;
    new(): PerformanceEntry;
    isInstance(obj): obj is PerformanceEntry;
};

interface PerformanceEntryEvent extends Event {
    readonly duration: DOMHighResTimeStamp;
    readonly entryType: string;
    readonly epoch: number;
    readonly name: string;
    readonly origin: string;
    readonly startTime: DOMHighResTimeStamp;
}

declare var PerformanceEntryEvent: {
    prototype: PerformanceEntryEvent;
    new(type: string, eventInitDict?: PerformanceEntryEventInit): PerformanceEntryEvent;
    isInstance(obj): obj is PerformanceEntryEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming) */
interface PerformanceEventTiming extends PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/cancelable) */
    readonly cancelable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/processingEnd) */
    readonly processingEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/processingStart) */
    readonly processingStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/target) */
    readonly target: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming/toJSON) */
    toJSON(): any;
}

declare var PerformanceEventTiming: {
    prototype: PerformanceEventTiming;
    new(): PerformanceEventTiming;
    isInstance(obj): obj is PerformanceEventTiming;
};

/**
 * PerformanceMark is an abstract interface for PerformanceEntry objects with an entryType of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceMark)
 */
interface PerformanceMark extends PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceMark/detail) */
    readonly detail: any;
}

declare var PerformanceMark: {
    prototype: PerformanceMark;
    new(markName: string, markOptions?: PerformanceMarkOptions): PerformanceMark;
    isInstance(obj): obj is PerformanceMark;
};

/**
 * PerformanceMeasure is an abstract interface for PerformanceEntry objects with an entryType of "measure". Entries of this type are created by calling performance.measure() to add a named DOMHighResTimeStamp (the measure) between two marks to the browser's performance timeline.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceMeasure)
 */
interface PerformanceMeasure extends PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceMeasure/detail) */
    readonly detail: any;
}

declare var PerformanceMeasure: {
    prototype: PerformanceMeasure;
    new(): PerformanceMeasure;
    isInstance(obj): obj is PerformanceMeasure;
};

/**
 * The legacy PerformanceNavigation interface represents information about how the navigation to the current document was done.
 * @deprecated This interface is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigation)
 */
interface PerformanceNavigation {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigation/redirectCount)
     */
    readonly redirectCount: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigation/type)
     */
    readonly type: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigation/toJSON)
     */
    toJSON(): any;
    readonly TYPE_NAVIGATE: 0;
    readonly TYPE_RELOAD: 1;
    readonly TYPE_BACK_FORWARD: 2;
    readonly TYPE_RESERVED: 255;
}

/** @deprecated */
declare var PerformanceNavigation: {
    prototype: PerformanceNavigation;
    new(): PerformanceNavigation;
    readonly TYPE_NAVIGATE: 0;
    readonly TYPE_RELOAD: 1;
    readonly TYPE_BACK_FORWARD: 2;
    readonly TYPE_RESERVED: 255;
    isInstance(obj): obj is PerformanceNavigation;
};

/**
 * Provides methods and properties to store and retrieve metrics regarding the browser's document navigation events. For example, this interface can be used to determine how much time it takes to load or unload a document.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming)
 */
interface PerformanceNavigationTiming extends PerformanceResourceTiming {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domComplete) */
    readonly domComplete: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventEnd) */
    readonly domContentLoadedEventEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventStart) */
    readonly domContentLoadedEventStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/domInteractive) */
    readonly domInteractive: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/loadEventEnd) */
    readonly loadEventEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/loadEventStart) */
    readonly loadEventStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/redirectCount) */
    readonly redirectCount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/type) */
    readonly type: NavigationType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/unloadEventEnd) */
    readonly unloadEventEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/unloadEventStart) */
    readonly unloadEventStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/toJSON) */
    toJSON(): any;
}

declare var PerformanceNavigationTiming: {
    prototype: PerformanceNavigationTiming;
    new(): PerformanceNavigationTiming;
    isInstance(obj): obj is PerformanceNavigationTiming;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserver) */
interface PerformanceObserver {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserver/disconnect) */
    disconnect(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserver/observe) */
    observe(options?: PerformanceObserverInit): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserver/takeRecords) */
    takeRecords(): PerformanceEntryList;
}

declare var PerformanceObserver: {
    prototype: PerformanceObserver;
    new(callback: PerformanceObserverCallback): PerformanceObserver;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserver/supportedEntryTypes_static) */
    readonly supportedEntryTypes: any;
    isInstance(obj): obj is PerformanceObserver;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList) */
interface PerformanceObserverEntryList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntries) */
    getEntries(filter?: PerformanceEntryFilterOptions): PerformanceEntryList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntriesByName) */
    getEntriesByName(name: string, entryType?: string): PerformanceEntryList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceObserverEntryList/getEntriesByType) */
    getEntriesByType(entryType: string): PerformanceEntryList;
}

declare var PerformanceObserverEntryList: {
    prototype: PerformanceObserverEntryList;
    new(): PerformanceObserverEntryList;
    isInstance(obj): obj is PerformanceObserverEntryList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformancePaintTiming) */
interface PerformancePaintTiming extends PerformanceEntry {
}

declare var PerformancePaintTiming: {
    prototype: PerformancePaintTiming;
    new(): PerformancePaintTiming;
    isInstance(obj): obj is PerformancePaintTiming;
};

/**
 * Enables retrieval and analysis of detailed network timing data regarding the loading of an application's resources. An application can use the timing metrics to determine, for example, the length of time it takes to fetch a specific resource, such as an XMLHttpRequest, <SVG>, image, or script.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming)
 */
interface PerformanceResourceTiming extends PerformanceEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/connectEnd) */
    readonly connectEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/connectStart) */
    readonly connectStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/decodedBodySize) */
    readonly decodedBodySize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/domainLookupEnd) */
    readonly domainLookupEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/domainLookupStart) */
    readonly domainLookupStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/encodedBodySize) */
    readonly encodedBodySize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/fetchStart) */
    readonly fetchStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/initiatorType) */
    readonly initiatorType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/nextHopProtocol) */
    readonly nextHopProtocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/redirectEnd) */
    readonly redirectEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/redirectStart) */
    readonly redirectStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/requestStart) */
    readonly requestStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/responseEnd) */
    readonly responseEnd: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/responseStart) */
    readonly responseStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/secureConnectionStart) */
    readonly secureConnectionStart: DOMHighResTimeStamp;
    /**
     * Available only in secure contexts.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/serverTiming)
     */
    readonly serverTiming: PerformanceServerTiming[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/transferSize) */
    readonly transferSize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/workerStart) */
    readonly workerStart: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceResourceTiming/toJSON) */
    toJSON(): any;
}

declare var PerformanceResourceTiming: {
    prototype: PerformanceResourceTiming;
    new(): PerformanceResourceTiming;
    isInstance(obj): obj is PerformanceResourceTiming;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceServerTiming)
 */
interface PerformanceServerTiming {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceServerTiming/description) */
    readonly description: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceServerTiming/duration) */
    readonly duration: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceServerTiming/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceServerTiming/toJSON) */
    toJSON(): any;
}

declare var PerformanceServerTiming: {
    prototype: PerformanceServerTiming;
    new(): PerformanceServerTiming;
    isInstance(obj): obj is PerformanceServerTiming;
};

/**
 * A legacy interface kept for backwards compatibility and contains properties that offer performance timing information for various events which occur during the loading and use of the current page. You get a PerformanceTiming object describing your page using the window.performance.timing property.
 * @deprecated This interface is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming)
 */
interface PerformanceTiming {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/connectEnd)
     */
    readonly connectEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/connectStart)
     */
    readonly connectStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domComplete)
     */
    readonly domComplete: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domContentLoadedEventEnd)
     */
    readonly domContentLoadedEventEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domContentLoadedEventStart)
     */
    readonly domContentLoadedEventStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domInteractive)
     */
    readonly domInteractive: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domLoading)
     */
    readonly domLoading: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domainLookupEnd)
     */
    readonly domainLookupEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/domainLookupStart)
     */
    readonly domainLookupStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/fetchStart)
     */
    readonly fetchStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/loadEventEnd)
     */
    readonly loadEventEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/loadEventStart)
     */
    readonly loadEventStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/navigationStart)
     */
    readonly navigationStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/redirectEnd)
     */
    readonly redirectEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/redirectStart)
     */
    readonly redirectStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/requestStart)
     */
    readonly requestStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/responseEnd)
     */
    readonly responseEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/responseStart)
     */
    readonly responseStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/secureConnectionStart)
     */
    readonly secureConnectionStart: number;
    readonly timeToContentfulPaint: number;
    readonly timeToDOMContentFlushed: number;
    readonly timeToFirstInteractive: number;
    readonly timeToNonBlankPaint: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/unloadEventEnd)
     */
    readonly unloadEventEnd: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/unloadEventStart)
     */
    readonly unloadEventStart: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PerformanceTiming/toJSON)
     */
    toJSON(): any;
}

/** @deprecated */
declare var PerformanceTiming: {
    prototype: PerformanceTiming;
    new(): PerformanceTiming;
    isInstance(obj): obj is PerformanceTiming;
};

/**
 * PeriodicWave has no inputs or outputs; it is used to define custom oscillators when calling OscillatorNode.setPeriodicWave(). The PeriodicWave itself is created/returned by AudioContext.createPeriodicWave().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PeriodicWave)
 */
interface PeriodicWave {
}

declare var PeriodicWave: {
    prototype: PeriodicWave;
    new(context: BaseAudioContext, options?: PeriodicWaveOptions): PeriodicWave;
    isInstance(obj): obj is PeriodicWave;
};

interface PermissionStatusEventMap {
    "change": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PermissionStatus) */
interface PermissionStatus extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PermissionStatus/name) */
    readonly name: PermissionName;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PermissionStatus/change_event) */
    onchange: ((this: PermissionStatus, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PermissionStatus/state) */
    readonly state: PermissionState;
    addEventListener<K extends keyof PermissionStatusEventMap>(type: K, listener: (this: PermissionStatus, ev: PermissionStatusEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof PermissionStatusEventMap>(type: K, listener: (this: PermissionStatus, ev: PermissionStatusEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var PermissionStatus: {
    prototype: PermissionStatus;
    new(): PermissionStatus;
    isInstance(obj): obj is PermissionStatus;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Permissions) */
interface Permissions {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Permissions/query) */
    query(permission: any): Promise<PermissionStatus>;
}

declare var Permissions: {
    prototype: Permissions;
    new(): Permissions;
    isInstance(obj): obj is Permissions;
};

interface PlacesBookmark extends PlacesEvent {
    readonly guid: string;
    readonly id: number;
    readonly isTagging: boolean;
    readonly itemType: number;
    readonly parentGuid: string;
    readonly parentId: number;
    readonly source: number;
    readonly url: string;
}

declare var PlacesBookmark: {
    prototype: PlacesBookmark;
    new(): PlacesBookmark;
    isInstance(obj): obj is PlacesBookmark;
};

interface PlacesBookmarkAddition extends PlacesBookmark {
    readonly dateAdded: number;
    readonly frecency: number;
    readonly hidden: boolean;
    readonly index: number;
    readonly lastVisitDate: number | null;
    readonly tags: string;
    readonly targetFolderGuid: string;
    readonly targetFolderItemId: number;
    readonly targetFolderTitle: string;
    readonly title: string;
    readonly visitCount: number;
}

declare var PlacesBookmarkAddition: {
    prototype: PlacesBookmarkAddition;
    new(initDict: PlacesBookmarkAdditionInit): PlacesBookmarkAddition;
    isInstance(obj): obj is PlacesBookmarkAddition;
};

interface PlacesBookmarkChanged extends PlacesBookmark {
    readonly lastModified: number;
}

declare var PlacesBookmarkChanged: {
    prototype: PlacesBookmarkChanged;
    new(): PlacesBookmarkChanged;
    isInstance(obj): obj is PlacesBookmarkChanged;
};

interface PlacesBookmarkGuid extends PlacesBookmarkChanged {
}

declare var PlacesBookmarkGuid: {
    prototype: PlacesBookmarkGuid;
    new(initDict: PlacesBookmarkGuidInit): PlacesBookmarkGuid;
    isInstance(obj): obj is PlacesBookmarkGuid;
};

interface PlacesBookmarkKeyword extends PlacesBookmarkChanged {
    readonly keyword: string;
}

declare var PlacesBookmarkKeyword: {
    prototype: PlacesBookmarkKeyword;
    new(initDict: PlacesBookmarkKeywordInit): PlacesBookmarkKeyword;
    isInstance(obj): obj is PlacesBookmarkKeyword;
};

interface PlacesBookmarkMoved extends PlacesBookmark {
    readonly dateAdded: number;
    readonly frecency: number;
    readonly hidden: boolean;
    readonly index: number;
    readonly lastVisitDate: number | null;
    readonly oldIndex: number;
    readonly oldParentGuid: string;
    readonly tags: string;
    readonly title: string;
    readonly visitCount: number;
}

declare var PlacesBookmarkMoved: {
    prototype: PlacesBookmarkMoved;
    new(initDict: PlacesBookmarkMovedInit): PlacesBookmarkMoved;
    isInstance(obj): obj is PlacesBookmarkMoved;
};

interface PlacesBookmarkRemoved extends PlacesBookmark {
    readonly index: number;
    readonly isDescendantRemoval: boolean;
    readonly title: string;
}

declare var PlacesBookmarkRemoved: {
    prototype: PlacesBookmarkRemoved;
    new(initDict: PlacesBookmarkRemovedInit): PlacesBookmarkRemoved;
    isInstance(obj): obj is PlacesBookmarkRemoved;
};

interface PlacesBookmarkTags extends PlacesBookmarkChanged {
    readonly tags: string[];
}

declare var PlacesBookmarkTags: {
    prototype: PlacesBookmarkTags;
    new(initDict: PlacesBookmarkTagsInit): PlacesBookmarkTags;
    isInstance(obj): obj is PlacesBookmarkTags;
};

interface PlacesBookmarkTime extends PlacesBookmarkChanged {
    readonly dateAdded: number;
}

declare var PlacesBookmarkTime: {
    prototype: PlacesBookmarkTime;
    new(initDict: PlacesBookmarkTimeInit): PlacesBookmarkTime;
    isInstance(obj): obj is PlacesBookmarkTime;
};

interface PlacesBookmarkTitle extends PlacesBookmarkChanged {
    readonly title: string;
}

declare var PlacesBookmarkTitle: {
    prototype: PlacesBookmarkTitle;
    new(initDict: PlacesBookmarkTitleInit): PlacesBookmarkTitle;
    isInstance(obj): obj is PlacesBookmarkTitle;
};

interface PlacesBookmarkUrl extends PlacesBookmarkChanged {
}

declare var PlacesBookmarkUrl: {
    prototype: PlacesBookmarkUrl;
    new(initDict: PlacesBookmarkUrlInit): PlacesBookmarkUrl;
    isInstance(obj): obj is PlacesBookmarkUrl;
};

interface PlacesEvent {
    readonly type: PlacesEventType;
}

declare var PlacesEvent: {
    prototype: PlacesEvent;
    new(): PlacesEvent;
    isInstance(obj): obj is PlacesEvent;
};

interface PlacesFavicon extends PlacesEvent {
    readonly faviconUrl: string;
    readonly pageGuid: string;
    readonly url: string;
}

declare var PlacesFavicon: {
    prototype: PlacesFavicon;
    new(initDict: PlacesFaviconInit): PlacesFavicon;
    isInstance(obj): obj is PlacesFavicon;
};

interface PlacesHistoryCleared extends PlacesEvent {
}

declare var PlacesHistoryCleared: {
    prototype: PlacesHistoryCleared;
    new(): PlacesHistoryCleared;
    isInstance(obj): obj is PlacesHistoryCleared;
};

interface PlacesPurgeCaches extends PlacesEvent {
}

declare var PlacesPurgeCaches: {
    prototype: PlacesPurgeCaches;
    new(): PlacesPurgeCaches;
    isInstance(obj): obj is PlacesPurgeCaches;
};

interface PlacesRanking extends PlacesEvent {
}

declare var PlacesRanking: {
    prototype: PlacesRanking;
    new(): PlacesRanking;
    isInstance(obj): obj is PlacesRanking;
};

interface PlacesVisit extends PlacesEvent {
    readonly frecency: number;
    readonly hidden: boolean;
    readonly lastKnownTitle: string | null;
    readonly pageGuid: string;
    readonly referringVisitId: number;
    readonly transitionType: number;
    readonly typedCount: number;
    readonly url: string;
    readonly visitCount: number;
    readonly visitId: number;
    readonly visitTime: number;
}

declare var PlacesVisit: {
    prototype: PlacesVisit;
    new(): PlacesVisit;
    isInstance(obj): obj is PlacesVisit;
};

interface PlacesVisitRemoved extends PlacesEvent {
    readonly isPartialVisistsRemoval: boolean;
    readonly isRemovedFromStore: boolean;
    readonly pageGuid: string;
    readonly reason: number;
    readonly transitionType: number;
    readonly url: string;
    readonly REASON_DELETED: 0;
    readonly REASON_EXPIRED: 1;
}

declare var PlacesVisitRemoved: {
    prototype: PlacesVisitRemoved;
    new(initDict: PlacesVisitRemovedInit): PlacesVisitRemoved;
    readonly REASON_DELETED: 0;
    readonly REASON_EXPIRED: 1;
    isInstance(obj): obj is PlacesVisitRemoved;
};

interface PlacesVisitTitle extends PlacesEvent {
    readonly pageGuid: string;
    readonly title: string;
    readonly url: string;
}

declare var PlacesVisitTitle: {
    prototype: PlacesVisitTitle;
    new(initDict: PlacesVisitTitleInit): PlacesVisitTitle;
    isInstance(obj): obj is PlacesVisitTitle;
};

interface PlacesWeakCallbackWrapper {
}

declare var PlacesWeakCallbackWrapper: {
    prototype: PlacesWeakCallbackWrapper;
    new(callback: PlacesEventCallback): PlacesWeakCallbackWrapper;
    isInstance(obj): obj is PlacesWeakCallbackWrapper;
};

/**
 * Provides information about a browser plugin.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin)
 */
interface Plugin {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin/description)
     */
    readonly description: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin/filename)
     */
    readonly filename: string;
    /** @deprecated */
    readonly length: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin/name)
     */
    readonly name: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin/item)
     */
    item(index: number): MimeType | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Plugin/namedItem)
     */
    namedItem(name: string): MimeType | null;
    [index: number]: MimeType;
}

/** @deprecated */
declare var Plugin: {
    prototype: Plugin;
    new(): Plugin;
    isInstance(obj): obj is Plugin;
};

/**
 * Used to store a list of Plugin objects describing the available plugins; it's returned by the window.navigator.plugins property. The PluginArray is not a JavaScript array, but has the length property and supports accessing individual items using bracket notation (plugins[2]), as well as via item(index) and namedItem("name") methods.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PluginArray)
 */
interface PluginArray {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PluginArray/length)
     */
    readonly length: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PluginArray/item)
     */
    item(index: number): Plugin | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PluginArray/namedItem)
     */
    namedItem(name: string): Plugin | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PluginArray/refresh)
     */
    refresh(): void;
    [index: number]: Plugin;
}

/** @deprecated */
declare var PluginArray: {
    prototype: PluginArray;
    new(): PluginArray;
    isInstance(obj): obj is PluginArray;
};

interface PluginCrashedEvent extends Event {
    readonly gmpPlugin: boolean;
    readonly pluginDumpID: string;
    readonly pluginFilename: string | null;
    readonly pluginID: number;
    readonly pluginName: string;
    readonly submittedCrashReport: boolean;
}

declare var PluginCrashedEvent: {
    prototype: PluginCrashedEvent;
    new(type: string, eventInitDict?: PluginCrashedEventInit): PluginCrashedEvent;
    isInstance(obj): obj is PluginCrashedEvent;
};

/**
 * The state of a DOM event produced by a pointer such as the geometry of the contact point, the device type that generated the event, the amount of pressure that was applied on the contact surface, etc.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent)
 */
interface PointerEvent extends MouseEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/isPrimary) */
    readonly isPrimary: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/pointerId) */
    readonly pointerId: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/pointerType) */
    readonly pointerType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/pressure) */
    readonly pressure: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/tangentialPressure) */
    readonly tangentialPressure: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/tiltX) */
    readonly tiltX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/tiltY) */
    readonly tiltY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/twist) */
    readonly twist: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/width) */
    readonly width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/getCoalescedEvents) */
    getCoalescedEvents(): PointerEvent[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PointerEvent/getPredictedEvents) */
    getPredictedEvents(): PointerEvent[];
}

declare var PointerEvent: {
    prototype: PointerEvent;
    new(type: string, eventInitDict?: PointerEventInit): PointerEvent;
    isInstance(obj): obj is PointerEvent;
};

/**
 * PopStateEvent is an event handler for the popstate event on the window.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PopStateEvent)
 */
interface PopStateEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PopStateEvent/state) */
    readonly state: any;
}

declare var PopStateEvent: {
    prototype: PopStateEvent;
    new(type: string, eventInitDict?: PopStateEventInit): PopStateEvent;
    isInstance(obj): obj is PopStateEvent;
};

interface PopoverInvokerElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/popoverTargetAction) */
    popoverTargetAction: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLButtonElement/popoverTargetElement) */
    popoverTargetElement: Element | null;
}

interface PopupBlockedEvent extends Event {
    readonly popupWindowFeatures: string | null;
    readonly popupWindowName: string | null;
    readonly popupWindowURI: URI | null;
    readonly requestingWindow: Window | null;
}

declare var PopupBlockedEvent: {
    prototype: PopupBlockedEvent;
    new(type: string, eventInitDict?: PopupBlockedEventInit): PopupBlockedEvent;
    isInstance(obj): obj is PopupBlockedEvent;
};

interface PopupPositionedEvent extends Event {
    readonly alignmentOffset: number;
    readonly alignmentPosition: string;
    readonly isAnchored: boolean;
    readonly popupAlignment: string;
}

declare var PopupPositionedEvent: {
    prototype: PopupPositionedEvent;
    new(type: string, init?: PopupPositionedEventInit): PopupPositionedEvent;
    isInstance(obj): obj is PopupPositionedEvent;
};

interface PositionStateEvent extends Event {
    readonly duration: number;
    readonly playbackRate: number;
    readonly position: number;
}

declare var PositionStateEvent: {
    prototype: PositionStateEvent;
    new(type: string, eventInitDict?: PositionStateEventInit): PositionStateEvent;
    isInstance(obj): obj is PositionStateEvent;
};

interface PrecompiledScript {
    readonly hasReturnValue: boolean;
    readonly url: string;
    executeInGlobal(global: any, options?: ExecuteInGlobalOptions): any;
}

declare var PrecompiledScript: {
    prototype: PrecompiledScript;
    new(): PrecompiledScript;
    isInstance(obj): obj is PrecompiledScript;
};

interface ProcessMessageManager extends MessageSender, ProcessScriptLoader {
    readonly isInProcess: boolean;
    readonly osPid: number;
}

declare var ProcessMessageManager: {
    prototype: ProcessMessageManager;
    new(): ProcessMessageManager;
    isInstance(obj): obj is ProcessMessageManager;
};

interface ProcessScriptLoader {
    getDelayedProcessScripts(): any[][];
    loadProcessScript(url: string, allowDelayedLoad: boolean): void;
    removeDelayedProcessScript(url: string): void;
}

/**
 * A processing instruction embeds application-specific instructions in XML which can be ignored by other applications that don't recognize them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProcessingInstruction)
 */
interface ProcessingInstruction extends CharacterData, LinkStyle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProcessingInstruction/target) */
    readonly target: string;
}

declare var ProcessingInstruction: {
    prototype: ProcessingInstruction;
    new(): ProcessingInstruction;
    isInstance(obj): obj is ProcessingInstruction;
};

/**
 * Events measuring progress of an underlying process, like an HTTP request (for an XMLHttpRequest, or the loading of the underlying resource of an <img>, <audio>, <video>, <style> or <link>).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProgressEvent)
 */
interface ProgressEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProgressEvent/lengthComputable) */
    readonly lengthComputable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProgressEvent/loaded) */
    readonly loaded: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ProgressEvent/total) */
    readonly total: number;
}

declare var ProgressEvent: {
    prototype: ProgressEvent;
    new(type: string, eventInitDict?: ProgressEventInit): ProgressEvent;
    isInstance(obj): obj is ProgressEvent;
};

interface PromiseNativeHandler {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PromiseRejectionEvent) */
interface PromiseRejectionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PromiseRejectionEvent/promise) */
    readonly promise: Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PromiseRejectionEvent/reason) */
    readonly reason: any;
}

declare var PromiseRejectionEvent: {
    prototype: PromiseRejectionEvent;
    new(type: string, eventInitDict: PromiseRejectionEventInit): PromiseRejectionEvent;
    isInstance(obj): obj is PromiseRejectionEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential)
 */
interface PublicKeyCredential extends Credential {
    readonly authenticatorAttachment: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/rawId) */
    readonly rawId: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/response) */
    readonly response: AuthenticatorResponse;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/getClientExtensionResults) */
    getClientExtensionResults(): AuthenticationExtensionsClientOutputs;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/toJSON) */
    toJSON(): any;
}

declare var PublicKeyCredential: {
    prototype: PublicKeyCredential;
    new(): PublicKeyCredential;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/isConditionalMediationAvailable) */
    isConditionalMediationAvailable(): Promise<boolean>;
    isExternalCTAP2SecurityKeySupported(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/isUserVerifyingPlatformAuthenticatorAvailable_static) */
    isUserVerifyingPlatformAuthenticatorAvailable(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/parseCreationOptionsFromJSON_static) */
    parseCreationOptionsFromJSON(options: PublicKeyCredentialCreationOptionsJSON): PublicKeyCredentialCreationOptions;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PublicKeyCredential/parseRequestOptionsFromJSON_static) */
    parseRequestOptionsFromJSON(options: PublicKeyCredentialRequestOptionsJSON): PublicKeyCredentialRequestOptions;
    isInstance(obj): obj is PublicKeyCredential;
};

/**
 * This Push API interface represents a push message that has been received. This event is sent to the global scope of a ServiceWorker. It contains the information sent from an application server to a PushSubscription.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushEvent)
 */
interface PushEvent extends ExtendableEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushEvent/data) */
    readonly data: PushMessageData | null;
}

declare var PushEvent: {
    prototype: PushEvent;
    new(type: string, eventInitDict?: PushEventInit): PushEvent;
    isInstance(obj): obj is PushEvent;
};

/**
 * This Push API interface provides a way to receive notifications from third-party servers as well as request URLs for push notifications.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushManager)
 */
interface PushManager {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushManager/getSubscription) */
    getSubscription(): Promise<PushSubscription | null>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushManager/permissionState) */
    permissionState(options?: PushSubscriptionOptionsInit): Promise<PermissionState>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushManager/subscribe) */
    subscribe(options?: PushSubscriptionOptionsInit): Promise<PushSubscription>;
}

declare var PushManager: {
    prototype: PushManager;
    new(scope: string): PushManager;
    isInstance(obj): obj is PushManager;
};

interface PushManagerImpl {
    getSubscription(): Promise<PushSubscription | null>;
    permissionState(options?: PushSubscriptionOptionsInit): Promise<PermissionState>;
    subscribe(options?: PushSubscriptionOptionsInit): Promise<PushSubscription>;
}

declare var PushManagerImpl: {
    prototype: PushManagerImpl;
    new(scope: string): PushManagerImpl;
    isInstance(obj): obj is PushManagerImpl;
};

/**
 * This Push API interface provides methods which let you retrieve the push data sent by a server in various formats.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushMessageData)
 */
interface PushMessageData {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushMessageData/arrayBuffer) */
    arrayBuffer(): ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushMessageData/blob) */
    blob(): Blob;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushMessageData/json) */
    json(): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushMessageData/text) */
    text(): string;
}

declare var PushMessageData: {
    prototype: PushMessageData;
    new(): PushMessageData;
    isInstance(obj): obj is PushMessageData;
};

/**
 * This Push API interface provides a subcription's URL endpoint and allows unsubscription from a push service.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription)
 */
interface PushSubscription {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/endpoint) */
    readonly endpoint: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/expirationTime) */
    readonly expirationTime: EpochTimeStamp | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/options) */
    readonly options: PushSubscriptionOptions;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/getKey) */
    getKey(name: PushEncryptionKeyName): ArrayBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/toJSON) */
    toJSON(): PushSubscriptionJSON;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscription/unsubscribe) */
    unsubscribe(): Promise<boolean>;
}

declare var PushSubscription: {
    prototype: PushSubscription;
    new(initDict: PushSubscriptionInit): PushSubscription;
    isInstance(obj): obj is PushSubscription;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscriptionOptions) */
interface PushSubscriptionOptions {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/PushSubscriptionOptions/applicationServerKey) */
    readonly applicationServerKey: ArrayBuffer | null;
}

declare var PushSubscriptionOptions: {
    prototype: PushSubscriptionOptions;
    new(): PushSubscriptionOptions;
    isInstance(obj): obj is PushSubscriptionOptions;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCCertificate) */
interface RTCCertificate {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCCertificate/expires) */
    readonly expires: DOMTimeStamp;
}

declare var RTCCertificate: {
    prototype: RTCCertificate;
    new(): RTCCertificate;
    isInstance(obj): obj is RTCCertificate;
};

interface RTCDTMFSenderEventMap {
    "tonechange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFSender) */
interface RTCDTMFSender extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/tonechange_event) */
    ontonechange: ((this: RTCDTMFSender, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/toneBuffer) */
    readonly toneBuffer: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFSender/insertDTMF) */
    insertDTMF(tones: string, duration?: number, interToneGap?: number): void;
    addEventListener<K extends keyof RTCDTMFSenderEventMap>(type: K, listener: (this: RTCDTMFSender, ev: RTCDTMFSenderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof RTCDTMFSenderEventMap>(type: K, listener: (this: RTCDTMFSender, ev: RTCDTMFSenderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var RTCDTMFSender: {
    prototype: RTCDTMFSender;
    new(): RTCDTMFSender;
    isInstance(obj): obj is RTCDTMFSender;
};

/**
 * Events sent to indicate that DTMF tones have started or finished playing. This interface is used by the tonechange event.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent)
 */
interface RTCDTMFToneChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDTMFToneChangeEvent/tone) */
    readonly tone: string;
}

declare var RTCDTMFToneChangeEvent: {
    prototype: RTCDTMFToneChangeEvent;
    new(type: string, eventInitDict?: RTCDTMFToneChangeEventInit): RTCDTMFToneChangeEvent;
    isInstance(obj): obj is RTCDTMFToneChangeEvent;
};

interface RTCDataChannelEventMap {
    "bufferedamountlow": Event;
    "close": Event;
    "error": ErrorEvent;
    "message": Event;
    "open": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel) */
interface RTCDataChannel extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/binaryType) */
    binaryType: RTCDataChannelType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedAmount) */
    readonly bufferedAmount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedAmountLowThreshold) */
    bufferedAmountLowThreshold: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/id) */
    readonly id: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/maxPacketLifeTime) */
    readonly maxPacketLifeTime: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/maxRetransmits) */
    readonly maxRetransmits: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/negotiated) */
    readonly negotiated: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/bufferedamountlow_event) */
    onbufferedamountlow: ((this: RTCDataChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close_event) */
    onclose: ((this: RTCDataChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/message_event) */
    onmessage: ((this: RTCDataChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/open_event) */
    onopen: ((this: RTCDataChannel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/ordered) */
    readonly ordered: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/protocol) */
    readonly protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/readyState) */
    readonly readyState: RTCDataChannelState;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/reliable)
     */
    readonly reliable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannel/send) */
    send(data: string): void;
    send(data: Blob): void;
    send(data: ArrayBuffer): void;
    send(data: ArrayBufferView): void;
    addEventListener<K extends keyof RTCDataChannelEventMap>(type: K, listener: (this: RTCDataChannel, ev: RTCDataChannelEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof RTCDataChannelEventMap>(type: K, listener: (this: RTCDataChannel, ev: RTCDataChannelEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var RTCDataChannel: {
    prototype: RTCDataChannel;
    new(): RTCDataChannel;
    isInstance(obj): obj is RTCDataChannel;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannelEvent) */
interface RTCDataChannelEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDataChannelEvent/channel) */
    readonly channel: RTCDataChannel;
}

declare var RTCDataChannelEvent: {
    prototype: RTCDataChannelEvent;
    new(type: string, eventInitDict: RTCDataChannelEventInit): RTCDataChannelEvent;
    isInstance(obj): obj is RTCDataChannelEvent;
};

interface RTCDtlsTransportEventMap {
    "statechange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport) */
interface RTCDtlsTransport extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport/statechange_event) */
    onstatechange: ((this: RTCDtlsTransport, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCDtlsTransport/state) */
    readonly state: RTCDtlsTransportState;
    addEventListener<K extends keyof RTCDtlsTransportEventMap>(type: K, listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof RTCDtlsTransportEventMap>(type: K, listener: (this: RTCDtlsTransport, ev: RTCDtlsTransportEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var RTCDtlsTransport: {
    prototype: RTCDtlsTransport;
    new(): RTCDtlsTransport;
    isInstance(obj): obj is RTCDtlsTransport;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedAudioFrame) */
interface RTCEncodedAudioFrame {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedAudioFrame/data) */
    data: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedAudioFrame/timestamp) */
    readonly timestamp: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedAudioFrame/getMetadata) */
    getMetadata(): RTCEncodedAudioFrameMetadata;
}

declare var RTCEncodedAudioFrame: {
    prototype: RTCEncodedAudioFrame;
    new(): RTCEncodedAudioFrame;
    isInstance(obj): obj is RTCEncodedAudioFrame;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame) */
interface RTCEncodedVideoFrame {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame/data) */
    data: ArrayBuffer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame/timestamp) */
    readonly timestamp: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame/type) */
    readonly type: RTCEncodedVideoFrameType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame/getMetadata) */
    getMetadata(): RTCEncodedVideoFrameMetadata;
}

declare var RTCEncodedVideoFrame: {
    prototype: RTCEncodedVideoFrame;
    new(): RTCEncodedVideoFrame;
    isInstance(obj): obj is RTCEncodedVideoFrame;
};

/**
 * The RTCIceCandidate interface—part of the WebRTC API—represents a candidate Internet Connectivity Establishment (ICE) configuration which may be used to establish an RTCPeerConnection.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate)
 */
interface RTCIceCandidate {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/candidate) */
    candidate: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/sdpMLineIndex) */
    sdpMLineIndex: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/sdpMid) */
    sdpMid: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/usernameFragment) */
    usernameFragment: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCIceCandidate/toJSON) */
    toJSON(): any;
}

declare var RTCIceCandidate: {
    prototype: RTCIceCandidate;
    new(candidateInitDict?: RTCIceCandidateInit): RTCIceCandidate;
    isInstance(obj): obj is RTCIceCandidate;
};

interface RTCIdentityProviderRegistrar {
    readonly hasIdp: boolean;
    generateAssertion(contents: string, origin: string, options?: RTCIdentityProviderOptions): Promise<RTCIdentityAssertionResult>;
    register(idp: RTCIdentityProvider): void;
    validateAssertion(assertion: string, origin: string): Promise<RTCIdentityValidationResult>;
}

interface RTCPeerConnectionEventMap {
    "addstream": Event;
    "addtrack": Event;
    "connectionstatechange": Event;
    "datachannel": Event;
    "icecandidate": Event;
    "iceconnectionstatechange": Event;
    "icegatheringstatechange": Event;
    "negotiationneeded": Event;
    "signalingstatechange": Event;
    "track": Event;
}

/**
 * A WebRTC connection between the local computer and a remote peer. It provides methods to connect to a remote peer, maintain and monitor the connection, and close the connection once it's no longer needed.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection)
 */
interface RTCPeerConnection extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/canTrickleIceCandidates) */
    readonly canTrickleIceCandidates: boolean | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/connectionState) */
    readonly connectionState: RTCPeerConnectionState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/currentLocalDescription) */
    readonly currentLocalDescription: RTCSessionDescription | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/currentRemoteDescription) */
    readonly currentRemoteDescription: RTCSessionDescription | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceConnectionState) */
    readonly iceConnectionState: RTCIceConnectionState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceGatheringState) */
    readonly iceGatheringState: RTCIceGatheringState;
    id: string;
    readonly idpLoginUrl: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/localDescription) */
    readonly localDescription: RTCSessionDescription | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addstream_event)
     */
    onaddstream: ((this: RTCPeerConnection, ev: Event) => any) | null;
    onaddtrack: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/connectionstatechange_event) */
    onconnectionstatechange: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/datachannel_event) */
    ondatachannel: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/icecandidate_event) */
    onicecandidate: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/iceconnectionstatechange_event) */
    oniceconnectionstatechange: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/icegatheringstatechange_event) */
    onicegatheringstatechange: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/negotiationneeded_event) */
    onnegotiationneeded: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/signalingstatechange_event) */
    onsignalingstatechange: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/track_event) */
    ontrack: ((this: RTCPeerConnection, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/peerIdentity) */
    readonly peerIdentity: Promise<RTCIdentityAssertion>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/pendingLocalDescription) */
    readonly pendingLocalDescription: RTCSessionDescription | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/pendingRemoteDescription) */
    readonly pendingRemoteDescription: RTCSessionDescription | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/remoteDescription) */
    readonly remoteDescription: RTCSessionDescription | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/sctp) */
    readonly sctp: RTCSctpTransport | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/signalingState) */
    readonly signalingState: RTCSignalingState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addIceCandidate) */
    addIceCandidate(candidate: RTCIceCandidate, successCallback: VoidFunction, failureCallback: RTCPeerConnectionErrorCallback): Promise<void>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addStream)
     */
    addStream(stream: MediaStream): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addTrack) */
    addTrack(track: MediaStreamTrack, ...streams: MediaStream[]): RTCRtpSender;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/addTransceiver) */
    addTransceiver(trackOrKind: MediaStreamTrack | string, init?: RTCRtpTransceiverInit): RTCRtpTransceiver;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createAnswer) */
    createAnswer(successCallback: RTCSessionDescriptionCallback, failureCallback: RTCPeerConnectionErrorCallback): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createDataChannel) */
    createDataChannel(label: string, dataChannelDict?: RTCDataChannelInit): RTCDataChannel;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/createOffer) */
    createOffer(successCallback: RTCSessionDescriptionCallback, failureCallback: RTCPeerConnectionErrorCallback, options?: RTCOfferOptions): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getConfiguration) */
    getConfiguration(): RTCConfiguration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getIdentityAssertion) */
    getIdentityAssertion(): Promise<string>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getLocalStreams)
     */
    getLocalStreams(): MediaStream[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getReceivers) */
    getReceivers(): RTCRtpReceiver[];
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getRemoteStreams)
     */
    getRemoteStreams(): MediaStream[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getSenders) */
    getSenders(): RTCRtpSender[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getStats) */
    getStats(selector?: MediaStreamTrack | null): Promise<RTCStatsReport>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/getTransceivers) */
    getTransceivers(): RTCRtpTransceiver[];
    mozDisablePacketDump(level: number, type: mozPacketDumpType, sending: boolean): void;
    mozEnablePacketDump(level: number, type: mozPacketDumpType, sending: boolean): void;
    mozSetPacketCallback(callback: mozPacketCallback): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/removeTrack) */
    removeTrack(sender: RTCRtpSender): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/restartIce) */
    restartIce(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setConfiguration) */
    setConfiguration(configuration?: RTCConfiguration): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setIdentityProvider) */
    setIdentityProvider(provider: string, options?: RTCIdentityProviderOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setLocalDescription) */
    setLocalDescription(description: RTCSessionDescriptionInit, successCallback: VoidFunction, failureCallback: RTCPeerConnectionErrorCallback): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/setRemoteDescription) */
    setRemoteDescription(description: RTCSessionDescriptionInit, successCallback: VoidFunction, failureCallback: RTCPeerConnectionErrorCallback): Promise<void>;
    addEventListener<K extends keyof RTCPeerConnectionEventMap>(type: K, listener: (this: RTCPeerConnection, ev: RTCPeerConnectionEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof RTCPeerConnectionEventMap>(type: K, listener: (this: RTCPeerConnection, ev: RTCPeerConnectionEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var RTCPeerConnection: {
    prototype: RTCPeerConnection;
    new(configuration?: RTCConfiguration, constraints?: any): RTCPeerConnection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnection/generateCertificate_static) */
    generateCertificate(keygenAlgorithm: AlgorithmIdentifier): Promise<RTCCertificate>;
    isInstance(obj): obj is RTCPeerConnection;
};

/**
 * Events that occurs in relation to ICE candidates with the target, usually an RTCPeerConnection. Only one event is of this type: icecandidate.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceEvent)
 */
interface RTCPeerConnectionIceEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCPeerConnectionIceEvent/candidate) */
    readonly candidate: RTCIceCandidate | null;
}

declare var RTCPeerConnectionIceEvent: {
    prototype: RTCPeerConnectionIceEvent;
    new(type: string, eventInitDict?: RTCPeerConnectionIceEventInit): RTCPeerConnectionIceEvent;
    isInstance(obj): obj is RTCPeerConnectionIceEvent;
};

interface RTCPeerConnectionStatic {
    registerPeerConnectionLifecycleCallback(cb: PeerConnectionLifecycleCallback): void;
}

declare var RTCPeerConnectionStatic: {
    prototype: RTCPeerConnectionStatic;
    new(): RTCPeerConnectionStatic;
    isInstance(obj): obj is RTCPeerConnectionStatic;
};

/**
 * This WebRTC API interface manages the reception and decoding of data for a MediaStreamTrack on an RTCPeerConnection.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver)
 */
interface RTCRtpReceiver {
    jitterBufferTarget: DOMHighResTimeStamp | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/track) */
    readonly track: MediaStreamTrack;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/transform) */
    transform: RTCRtpTransform | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/transport) */
    readonly transport: RTCDtlsTransport | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getContributingSources) */
    getContributingSources(): RTCRtpContributingSource[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getStats) */
    getStats(): Promise<RTCStatsReport>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getSynchronizationSources) */
    getSynchronizationSources(): RTCRtpSynchronizationSource[];
    mozInsertAudioLevelForContributingSource(source: number, timestamp: DOMHighResTimeStamp, rtpTimestamp: number, hasLevel: boolean, level: number): void;
}

declare var RTCRtpReceiver: {
    prototype: RTCRtpReceiver;
    new(): RTCRtpReceiver;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpReceiver/getCapabilities_static) */
    getCapabilities(kind: string): RTCRtpCapabilities | null;
    isInstance(obj): obj is RTCRtpReceiver;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransform) */
interface RTCRtpScriptTransform {
}

declare var RTCRtpScriptTransform: {
    prototype: RTCRtpScriptTransform;
    new(worker: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
    isInstance(obj): obj is RTCRtpScriptTransform;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer) */
interface RTCRtpScriptTransformer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer/options) */
    readonly options: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer/readable) */
    readonly readable: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer/writable) */
    readonly writable: WritableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer/generateKeyFrame) */
    generateKeyFrame(rid?: string): Promise<number>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpScriptTransformer/sendKeyFrameRequest) */
    sendKeyFrameRequest(): Promise<void>;
}

declare var RTCRtpScriptTransformer: {
    prototype: RTCRtpScriptTransformer;
    new(): RTCRtpScriptTransformer;
    isInstance(obj): obj is RTCRtpScriptTransformer;
};

/**
 * Provides the ability to control and obtain details about how a particular MediaStreamTrack is encoded and sent to a remote peer.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender)
 */
interface RTCRtpSender {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/dtmf) */
    readonly dtmf: RTCDTMFSender | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/track) */
    readonly track: MediaStreamTrack | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/transform) */
    transform: RTCRtpTransform | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/transport) */
    readonly transport: RTCDtlsTransport | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getParameters) */
    getParameters(): RTCRtpSendParameters;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getStats) */
    getStats(): Promise<RTCStatsReport>;
    getStreams(): MediaStream[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/replaceTrack) */
    replaceTrack(withTrack: MediaStreamTrack | null): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setParameters) */
    setParameters(parameters: RTCRtpSendParameters): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/setStreams) */
    setStreams(...streams: MediaStream[]): void;
    setStreamsImpl(...streams: MediaStream[]): void;
    setTrack(track: MediaStreamTrack | null): void;
}

declare var RTCRtpSender: {
    prototype: RTCRtpSender;
    new(): RTCRtpSender;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpSender/getCapabilities_static) */
    getCapabilities(kind: string): RTCRtpCapabilities | null;
    isInstance(obj): obj is RTCRtpSender;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver) */
interface RTCRtpTransceiver {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/currentDirection) */
    readonly currentDirection: RTCRtpTransceiverDirection | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/direction) */
    direction: RTCRtpTransceiverDirection;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/mid) */
    readonly mid: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/receiver) */
    readonly receiver: RTCRtpReceiver;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/sender) */
    readonly sender: RTCRtpSender;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/stopped)
     */
    readonly stopped: boolean;
    getKind(): string;
    hasBeenUsedToSend(): boolean;
    setDirectionInternal(direction: RTCRtpTransceiverDirection): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCRtpTransceiver/stop) */
    stop(): void;
}

declare var RTCRtpTransceiver: {
    prototype: RTCRtpTransceiver;
    new(): RTCRtpTransceiver;
    isInstance(obj): obj is RTCRtpTransceiver;
};

interface RTCSctpTransportEventMap {
    "statechange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSctpTransport) */
interface RTCSctpTransport extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSctpTransport/maxChannels) */
    readonly maxChannels: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSctpTransport/maxMessageSize) */
    readonly maxMessageSize: number;
    onstatechange: ((this: RTCSctpTransport, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSctpTransport/state) */
    readonly state: RTCSctpTransportState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSctpTransport/transport) */
    readonly transport: RTCDtlsTransport;
    addEventListener<K extends keyof RTCSctpTransportEventMap>(type: K, listener: (this: RTCSctpTransport, ev: RTCSctpTransportEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof RTCSctpTransportEventMap>(type: K, listener: (this: RTCSctpTransport, ev: RTCSctpTransportEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var RTCSctpTransport: {
    prototype: RTCSctpTransport;
    new(): RTCSctpTransport;
    isInstance(obj): obj is RTCSctpTransport;
};

/**
 * One end of a connection—or potential connection—and how it's configured. Each RTCSessionDescription consists of a description type indicating which part of the offer/answer negotiation process it describes and of the SDP descriptor of the session.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSessionDescription)
 */
interface RTCSessionDescription {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/sdp) */
    sdp: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/type) */
    type: RTCSdpType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCSessionDescription/toJSON) */
    toJSON(): any;
}

declare var RTCSessionDescription: {
    prototype: RTCSessionDescription;
    new(descriptionInitDict?: RTCSessionDescriptionInit): RTCSessionDescription;
    isInstance(obj): obj is RTCSessionDescription;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCStatsReport) */
interface RTCStatsReport {
    forEach(callbackfn: (value: any, key: string, parent: RTCStatsReport) => void, thisArg?: any): void;
}

declare var RTCStatsReport: {
    prototype: RTCStatsReport;
    new(): RTCStatsReport;
    isInstance(obj): obj is RTCStatsReport;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTrackEvent) */
interface RTCTrackEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/receiver) */
    readonly receiver: RTCRtpReceiver;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/streams) */
    readonly streams: MediaStream[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/track) */
    readonly track: MediaStreamTrack;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTrackEvent/transceiver) */
    readonly transceiver: RTCRtpTransceiver;
}

declare var RTCTrackEvent: {
    prototype: RTCTrackEvent;
    new(type: string, eventInitDict: RTCTrackEventInit): RTCTrackEvent;
    isInstance(obj): obj is RTCTrackEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTransformEvent) */
interface RTCTransformEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RTCTransformEvent/transformer) */
    readonly transformer: RTCRtpScriptTransformer;
}

declare var RTCTransformEvent: {
    prototype: RTCTransformEvent;
    new(type: string, eventInitDict: RTCTransformEventInit): RTCTransformEvent;
    isInstance(obj): obj is RTCTransformEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RadioNodeList) */
interface RadioNodeList extends NodeList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/RadioNodeList/value) */
    value: string;
}

declare var RadioNodeList: {
    prototype: RadioNodeList;
    new(): RadioNodeList;
    isInstance(obj): obj is RadioNodeList;
};

/**
 * A fragment of a document that can contain nodes and parts of text nodes.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range)
 */
interface Range extends AbstractRange {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/commonAncestorContainer) */
    readonly commonAncestorContainer: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/cloneContents) */
    cloneContents(): DocumentFragment;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/cloneRange) */
    cloneRange(): Range;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/collapse) */
    collapse(toStart?: boolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/compareBoundaryPoints) */
    compareBoundaryPoints(how: number, sourceRange: Range): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/comparePoint) */
    comparePoint(node: Node, offset: number): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/createContextualFragment) */
    createContextualFragment(fragment: string): DocumentFragment;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/deleteContents) */
    deleteContents(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/detach) */
    detach(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/extractContents) */
    extractContents(): DocumentFragment;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/getBoundingClientRect) */
    getBoundingClientRect(): DOMRect;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/getClientRects) */
    getClientRects(): DOMRectList | null;
    getClientRectsAndTexts(): ClientRectsAndTexts;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/insertNode) */
    insertNode(node: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/intersectsNode) */
    intersectsNode(node: Node): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/isPointInRange) */
    isPointInRange(node: Node, offset: number): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/selectNode) */
    selectNode(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/selectNodeContents) */
    selectNodeContents(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setEnd) */
    setEnd(refNode: Node, offset: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setEndAfter) */
    setEndAfter(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setEndBefore) */
    setEndBefore(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setStart) */
    setStart(refNode: Node, offset: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setStartAfter) */
    setStartAfter(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/setStartBefore) */
    setStartBefore(refNode: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Range/surroundContents) */
    surroundContents(newParent: Node): void;
    toString(): string;
    readonly START_TO_START: 0;
    readonly START_TO_END: 1;
    readonly END_TO_END: 2;
    readonly END_TO_START: 3;
}

declare var Range: {
    prototype: Range;
    new(): Range;
    readonly START_TO_START: 0;
    readonly START_TO_END: 1;
    readonly END_TO_END: 2;
    readonly END_TO_START: 3;
    isInstance(obj): obj is Range;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController) */
interface ReadableByteStreamController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController/byobRequest) */
    readonly byobRequest: ReadableStreamBYOBRequest | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController/desiredSize) */
    readonly desiredSize: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController/enqueue) */
    enqueue(chunk: ArrayBufferView): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableByteStreamController/error) */
    error(e?: any): void;
}

declare var ReadableByteStreamController: {
    prototype: ReadableByteStreamController;
    new(): ReadableByteStreamController;
    isInstance(obj): obj is ReadableByteStreamController;
};

/**
 * This Streams API interface represents a readable stream of byte data. The Fetch API offers a concrete instance of a ReadableStream through the body property of a Response object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream)
 */
interface ReadableStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/locked) */
    readonly locked: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/cancel) */
    cancel(reason?: any): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/getReader) */
    getReader(options?: ReadableStreamGetReaderOptions): ReadableStreamReader;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/pipeThrough) */
    pipeThrough(transform: ReadableWritablePair, options?: StreamPipeOptions): ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/pipeTo) */
    pipeTo(destination: WritableStream, options?: StreamPipeOptions): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/tee) */
    tee(): ReadableStream[];
}

declare var ReadableStream: {
    prototype: ReadableStream;
    new(underlyingSource?: any, strategy?: QueuingStrategy): ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStream/from_static) */
    from(asyncIterable: any): ReadableStream;
    isInstance(obj): obj is ReadableStream;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader) */
interface ReadableStreamBYOBReader extends ReadableStreamGenericReader {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader/read) */
    read(view: ArrayBufferView): Promise<ReadableStreamReadResult>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader/releaseLock) */
    releaseLock(): void;
}

declare var ReadableStreamBYOBReader: {
    prototype: ReadableStreamBYOBReader;
    new(stream: ReadableStream): ReadableStreamBYOBReader;
    isInstance(obj): obj is ReadableStreamBYOBReader;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBRequest) */
interface ReadableStreamBYOBRequest {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBRequest/view) */
    readonly view: ArrayBufferView | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBRequest/respond) */
    respond(bytesWritten: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBRequest/respondWithNewView) */
    respondWithNewView(view: ArrayBufferView): void;
}

declare var ReadableStreamBYOBRequest: {
    prototype: ReadableStreamBYOBRequest;
    new(): ReadableStreamBYOBRequest;
    isInstance(obj): obj is ReadableStreamBYOBRequest;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController) */
interface ReadableStreamDefaultController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/desiredSize) */
    readonly desiredSize: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue) */
    enqueue(chunk?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/error) */
    error(e?: any): void;
}

declare var ReadableStreamDefaultController: {
    prototype: ReadableStreamDefaultController;
    new(): ReadableStreamDefaultController;
    isInstance(obj): obj is ReadableStreamDefaultController;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultReader) */
interface ReadableStreamDefaultReader extends ReadableStreamGenericReader {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultReader/read) */
    read(): Promise<ReadableStreamReadResult>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultReader/releaseLock) */
    releaseLock(): void;
}

declare var ReadableStreamDefaultReader: {
    prototype: ReadableStreamDefaultReader;
    new(stream: ReadableStream): ReadableStreamDefaultReader;
    isInstance(obj): obj is ReadableStreamDefaultReader;
};

interface ReadableStreamGenericReader {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader/closed) */
    readonly closed: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamBYOBReader/cancel) */
    cancel(reason?: any): Promise<void>;
}

interface ReferrerInfo {
}

declare var ReferrerInfo: {
    prototype: ReferrerInfo;
    new(): ReferrerInfo;
    isInstance(obj): obj is ReferrerInfo;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Report) */
interface Report {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Report/body) */
    readonly body: ReportBody | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Report/type) */
    readonly type: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Report/url) */
    readonly url: string;
    toJSON(): any;
}

declare var Report: {
    prototype: Report;
    new(): Report;
    isInstance(obj): obj is Report;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReportBody) */
interface ReportBody {
    toJSON(): any;
}

declare var ReportBody: {
    prototype: ReportBody;
    new(): ReportBody;
    isInstance(obj): obj is ReportBody;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReportingObserver) */
interface ReportingObserver {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReportingObserver/disconnect) */
    disconnect(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReportingObserver/observe) */
    observe(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReportingObserver/takeRecords) */
    takeRecords(): ReportList;
}

declare var ReportingObserver: {
    prototype: ReportingObserver;
    new(callback: ReportingObserverCallback, options?: ReportingObserverOptions): ReportingObserver;
    isInstance(obj): obj is ReportingObserver;
};

/**
 * This Fetch API interface represents a resource request.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request)
 */
interface Request extends Body {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/cache) */
    readonly cache: RequestCache;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/credentials) */
    readonly credentials: RequestCredentials;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/destination) */
    readonly destination: RequestDestination;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/headers) */
    readonly headers: Headers;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/integrity) */
    readonly integrity: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/method) */
    readonly method: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/mode) */
    readonly mode: RequestMode;
    readonly mozErrors: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/redirect) */
    readonly redirect: RequestRedirect;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/referrer) */
    readonly referrer: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/referrerPolicy) */
    readonly referrerPolicy: ReferrerPolicy;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/signal) */
    readonly signal: AbortSignal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/clone) */
    clone(): Request;
    overrideContentPolicyType(context: nsContentPolicyType): void;
}

declare var Request: {
    prototype: Request;
    new(input: RequestInfo | URL, init?: RequestInit): Request;
    isInstance(obj): obj is Request;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserver) */
interface ResizeObserver {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserver/disconnect) */
    disconnect(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserver/observe) */
    observe(target: Element, options?: ResizeObserverOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserver/unobserve) */
    unobserve(target: Element): void;
}

declare var ResizeObserver: {
    prototype: ResizeObserver;
    new(callback: ResizeObserverCallback): ResizeObserver;
    isInstance(obj): obj is ResizeObserver;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverEntry) */
interface ResizeObserverEntry {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverEntry/borderBoxSize) */
    readonly borderBoxSize: ResizeObserverSize[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverEntry/contentBoxSize) */
    readonly contentBoxSize: ResizeObserverSize[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverEntry/contentRect) */
    readonly contentRect: DOMRectReadOnly;
    readonly devicePixelContentBoxSize: ResizeObserverSize[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverEntry/target) */
    readonly target: Element;
}

declare var ResizeObserverEntry: {
    prototype: ResizeObserverEntry;
    new(): ResizeObserverEntry;
    isInstance(obj): obj is ResizeObserverEntry;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverSize) */
interface ResizeObserverSize {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverSize/blockSize) */
    readonly blockSize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ResizeObserverSize/inlineSize) */
    readonly inlineSize: number;
}

declare var ResizeObserverSize: {
    prototype: ResizeObserverSize;
    new(): ResizeObserverSize;
    isInstance(obj): obj is ResizeObserverSize;
};

/**
 * This Fetch API interface represents the response to a request.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response)
 */
// @ts-ignore
interface Response extends Body {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/body) */
    readonly body: ReadableStream | null;
    readonly hasCacheInfoChannel: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/headers) */
    readonly headers: Headers;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/ok) */
    readonly ok: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/redirected) */
    readonly redirected: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/status) */
    readonly status: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/statusText) */
    readonly statusText: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/type) */
    readonly type: ResponseType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/clone) */
    clone(): Response;
    cloneUnfiltered(): Response;
}

declare var Response: {
    prototype: Response;
    new(body?: Blob | BufferSource | FormData | URLSearchParams | ReadableStream | string | null, init?: ResponseInit): Response;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/error_static) */
    error(): Response;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/json_static) */
    json(data: any, init?: ResponseInit): Response;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Response/redirect_static) */
    redirect(url: string | URL, status?: number): Response;
    isInstance(obj): obj is Response;
};

/**
 * Provides access to the properties of <a> element, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAElement)
 */
interface SVGAElement extends SVGGraphicsElement, SVGURIReference {
    download: string;
    hreflang: string;
    ping: string;
    referrerPolicy: string;
    rel: string;
    readonly relList: DOMTokenList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAElement/target) */
    readonly target: SVGAnimatedString;
    text: string;
    type: string;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGAElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGAElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGAElement: {
    prototype: SVGAElement;
    new(): SVGAElement;
    isInstance(obj): obj is SVGAElement;
};

/**
 * Used to represent a value that can be an <angle> or <number> value. An SVGAngle reflected through the animVal attribute is always read only.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAngle)
 */
interface SVGAngle {
    readonly unitType: number;
    value: number;
    valueAsString: string;
    valueInSpecifiedUnits: number;
    convertToSpecifiedUnits(unitType: number): void;
    newValueSpecifiedUnits(unitType: number, valueInSpecifiedUnits: number): void;
    readonly SVG_ANGLETYPE_UNKNOWN: 0;
    readonly SVG_ANGLETYPE_UNSPECIFIED: 1;
    readonly SVG_ANGLETYPE_DEG: 2;
    readonly SVG_ANGLETYPE_RAD: 3;
    readonly SVG_ANGLETYPE_GRAD: 4;
}

declare var SVGAngle: {
    prototype: SVGAngle;
    new(): SVGAngle;
    readonly SVG_ANGLETYPE_UNKNOWN: 0;
    readonly SVG_ANGLETYPE_UNSPECIFIED: 1;
    readonly SVG_ANGLETYPE_DEG: 2;
    readonly SVG_ANGLETYPE_RAD: 3;
    readonly SVG_ANGLETYPE_GRAD: 4;
    isInstance(obj): obj is SVGAngle;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimateElement) */
interface SVGAnimateElement extends SVGAnimationElement {
    addEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGAnimateElement: {
    prototype: SVGAnimateElement;
    new(): SVGAnimateElement;
    isInstance(obj): obj is SVGAnimateElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimateMotionElement) */
interface SVGAnimateMotionElement extends SVGAnimationElement {
    addEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateMotionElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateMotionElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGAnimateMotionElement: {
    prototype: SVGAnimateMotionElement;
    new(): SVGAnimateMotionElement;
    isInstance(obj): obj is SVGAnimateMotionElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimateTransformElement) */
interface SVGAnimateTransformElement extends SVGAnimationElement {
    addEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateTransformElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimateTransformElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGAnimateTransformElement: {
    prototype: SVGAnimateTransformElement;
    new(): SVGAnimateTransformElement;
    isInstance(obj): obj is SVGAnimateTransformElement;
};

/**
 * Used for attributes of basic type <angle> which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedAngle)
 */
interface SVGAnimatedAngle {
    readonly animVal: SVGAngle;
    readonly baseVal: SVGAngle;
}

declare var SVGAnimatedAngle: {
    prototype: SVGAnimatedAngle;
    new(): SVGAnimatedAngle;
    isInstance(obj): obj is SVGAnimatedAngle;
};

/**
 * Used for attributes of type boolean which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedBoolean)
 */
interface SVGAnimatedBoolean {
    readonly animVal: boolean;
    baseVal: boolean;
}

declare var SVGAnimatedBoolean: {
    prototype: SVGAnimatedBoolean;
    new(): SVGAnimatedBoolean;
    isInstance(obj): obj is SVGAnimatedBoolean;
};

/**
 * Used for attributes whose value must be a constant from a particular enumeration and which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedEnumeration)
 */
interface SVGAnimatedEnumeration {
    readonly animVal: number;
    baseVal: number;
}

declare var SVGAnimatedEnumeration: {
    prototype: SVGAnimatedEnumeration;
    new(): SVGAnimatedEnumeration;
    isInstance(obj): obj is SVGAnimatedEnumeration;
};

/**
 * Used for attributes of basic type <integer> which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedInteger)
 */
interface SVGAnimatedInteger {
    readonly animVal: number;
    baseVal: number;
}

declare var SVGAnimatedInteger: {
    prototype: SVGAnimatedInteger;
    new(): SVGAnimatedInteger;
    isInstance(obj): obj is SVGAnimatedInteger;
};

/**
 * Used for attributes of basic type <length> which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedLength)
 */
interface SVGAnimatedLength {
    readonly animVal: SVGLength;
    readonly baseVal: SVGLength;
}

declare var SVGAnimatedLength: {
    prototype: SVGAnimatedLength;
    new(): SVGAnimatedLength;
    isInstance(obj): obj is SVGAnimatedLength;
};

/**
 * Used for attributes of type SVGLengthList which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedLengthList)
 */
interface SVGAnimatedLengthList {
    readonly animVal: SVGLengthList;
    readonly baseVal: SVGLengthList;
}

declare var SVGAnimatedLengthList: {
    prototype: SVGAnimatedLengthList;
    new(): SVGAnimatedLengthList;
    isInstance(obj): obj is SVGAnimatedLengthList;
};

/**
 * Used for attributes of basic type <Number> which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedNumber)
 */
interface SVGAnimatedNumber {
    readonly animVal: number;
    baseVal: number;
}

declare var SVGAnimatedNumber: {
    prototype: SVGAnimatedNumber;
    new(): SVGAnimatedNumber;
    isInstance(obj): obj is SVGAnimatedNumber;
};

/**
 * The SVGAnimatedNumber interface is used for attributes which take a list of numbers and which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedNumberList)
 */
interface SVGAnimatedNumberList {
    readonly animVal: SVGNumberList;
    readonly baseVal: SVGNumberList;
}

declare var SVGAnimatedNumberList: {
    prototype: SVGAnimatedNumberList;
    new(): SVGAnimatedNumberList;
    isInstance(obj): obj is SVGAnimatedNumberList;
};

interface SVGAnimatedPathData {
    readonly animatedPathSegList: SVGPathSegList;
    readonly pathSegList: SVGPathSegList;
}

interface SVGAnimatedPoints {
    readonly animatedPoints: SVGPointList;
    readonly points: SVGPointList;
}

/**
 * Used for attributes of type SVGPreserveAspectRatio which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedPreserveAspectRatio)
 */
interface SVGAnimatedPreserveAspectRatio {
    readonly animVal: SVGPreserveAspectRatio;
    readonly baseVal: SVGPreserveAspectRatio;
}

declare var SVGAnimatedPreserveAspectRatio: {
    prototype: SVGAnimatedPreserveAspectRatio;
    new(): SVGAnimatedPreserveAspectRatio;
    isInstance(obj): obj is SVGAnimatedPreserveAspectRatio;
};

/**
 * Used for attributes of basic SVGRect which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedRect)
 */
interface SVGAnimatedRect {
    readonly animVal: SVGRect | null;
    readonly baseVal: SVGRect | null;
}

declare var SVGAnimatedRect: {
    prototype: SVGAnimatedRect;
    new(): SVGAnimatedRect;
    isInstance(obj): obj is SVGAnimatedRect;
};

/**
 * The SVGAnimatedString interface represents string attributes which can be animated from each SVG declaration. You need to create SVG attribute before doing anything else, everything should be declared inside this.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedString)
 */
interface SVGAnimatedString {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedString/animVal) */
    readonly animVal: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedString/baseVal) */
    baseVal: string;
}

declare var SVGAnimatedString: {
    prototype: SVGAnimatedString;
    new(): SVGAnimatedString;
    isInstance(obj): obj is SVGAnimatedString;
};

/**
 * Used for attributes which take a list of numbers and which can be animated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimatedTransformList)
 */
interface SVGAnimatedTransformList {
    readonly animVal: SVGTransformList;
    readonly baseVal: SVGTransformList;
}

declare var SVGAnimatedTransformList: {
    prototype: SVGAnimatedTransformList;
    new(): SVGAnimatedTransformList;
    isInstance(obj): obj is SVGAnimatedTransformList;
};

interface SVGAnimationElementEventMap extends SVGElementEventMap {
    "begin": Event;
    "end": Event;
    "repeat": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimationElement) */
interface SVGAnimationElement extends SVGElement, SVGTests {
    onbegin: ((this: SVGAnimationElement, ev: Event) => any) | null;
    onend: ((this: SVGAnimationElement, ev: Event) => any) | null;
    onrepeat: ((this: SVGAnimationElement, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGAnimationElement/targetElement) */
    readonly targetElement: SVGElement | null;
    beginElement(): void;
    beginElementAt(offset: number): void;
    endElement(): void;
    endElementAt(offset: number): void;
    getCurrentTime(): number;
    getSimpleDuration(): number;
    getStartTime(): number;
    addEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimationElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGAnimationElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGAnimationElement: {
    prototype: SVGAnimationElement;
    new(): SVGAnimationElement;
    isInstance(obj): obj is SVGAnimationElement;
};

/**
 * An interface for the <circle> element. The circle element is defined by the cx and cy attributes that denote the coordinates of the centre of the circle.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGCircleElement)
 */
interface SVGCircleElement extends SVGGeometryElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGCircleElement/cx) */
    readonly cx: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGCircleElement/cy) */
    readonly cy: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGCircleElement/r) */
    readonly r: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGCircleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGCircleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGCircleElement: {
    prototype: SVGCircleElement;
    new(): SVGCircleElement;
    isInstance(obj): obj is SVGCircleElement;
};

/**
 * Provides access to the properties of <clipPath> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGClipPathElement)
 */
interface SVGClipPathElement extends SVGElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGClipPathElement/clipPathUnits) */
    readonly clipPathUnits: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGClipPathElement/transform) */
    readonly transform: SVGAnimatedTransformList;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGClipPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGClipPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGClipPathElement: {
    prototype: SVGClipPathElement;
    new(): SVGClipPathElement;
    isInstance(obj): obj is SVGClipPathElement;
};

/**
 * A base interface used by the component transfer function interfaces.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGComponentTransferFunctionElement)
 */
interface SVGComponentTransferFunctionElement extends SVGElement {
    readonly amplitude: SVGAnimatedNumber;
    readonly exponent: SVGAnimatedNumber;
    readonly intercept: SVGAnimatedNumber;
    readonly offset: SVGAnimatedNumber;
    readonly slope: SVGAnimatedNumber;
    readonly tableValues: SVGAnimatedNumberList;
    readonly type: SVGAnimatedEnumeration;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: 0;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: 1;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: 2;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: 3;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: 4;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: 5;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGComponentTransferFunctionElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGComponentTransferFunctionElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGComponentTransferFunctionElement: {
    prototype: SVGComponentTransferFunctionElement;
    new(): SVGComponentTransferFunctionElement;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: 0;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: 1;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: 2;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: 3;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: 4;
    readonly SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: 5;
    isInstance(obj): obj is SVGComponentTransferFunctionElement;
};

/**
 * Corresponds to the <defs> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGDefsElement)
 */
interface SVGDefsElement extends SVGGraphicsElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGDefsElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGDefsElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGDefsElement: {
    prototype: SVGDefsElement;
    new(): SVGDefsElement;
    isInstance(obj): obj is SVGDefsElement;
};

/**
 * Corresponds to the <desc> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGDescElement)
 */
interface SVGDescElement extends SVGElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGDescElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGDescElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGDescElement: {
    prototype: SVGDescElement;
    new(): SVGDescElement;
    isInstance(obj): obj is SVGDescElement;
};

interface SVGElementEventMap extends ElementEventMap, GlobalEventHandlersEventMap, OnErrorEventHandlerForNodesEventMap, TouchEventHandlersEventMap {
}

/**
 * All of the SVG DOM interfaces that correspond directly to elements in the SVG language derive from the SVGElement interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGElement)
 */
interface SVGElement extends Element, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement, OnErrorEventHandlerForNodes, TouchEventHandlers {
    /** @deprecated */
    //classNme
    id: string;
    nonce: string;
    readonly ownerSVGElement: SVGSVGElement | null;
    readonly viewportElement: SVGElement | null;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGElement: {
    prototype: SVGElement;
    new(): SVGElement;
    isInstance(obj): obj is SVGElement;
};

/**
 * Provides access to the properties of <ellipse> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGEllipseElement)
 */
interface SVGEllipseElement extends SVGGeometryElement {
    readonly cx: SVGAnimatedLength;
    readonly cy: SVGAnimatedLength;
    readonly rx: SVGAnimatedLength;
    readonly ry: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGEllipseElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGEllipseElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGEllipseElement: {
    prototype: SVGEllipseElement;
    new(): SVGEllipseElement;
    isInstance(obj): obj is SVGEllipseElement;
};

/**
 * Corresponds to the <feBlend> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEBlendElement)
 */
interface SVGFEBlendElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly in2: SVGAnimatedString;
    readonly mode: SVGAnimatedEnumeration;
    readonly SVG_FEBLEND_MODE_UNKNOWN: 0;
    readonly SVG_FEBLEND_MODE_NORMAL: 1;
    readonly SVG_FEBLEND_MODE_MULTIPLY: 2;
    readonly SVG_FEBLEND_MODE_SCREEN: 3;
    readonly SVG_FEBLEND_MODE_DARKEN: 4;
    readonly SVG_FEBLEND_MODE_LIGHTEN: 5;
    readonly SVG_FEBLEND_MODE_OVERLAY: 6;
    readonly SVG_FEBLEND_MODE_COLOR_DODGE: 7;
    readonly SVG_FEBLEND_MODE_COLOR_BURN: 8;
    readonly SVG_FEBLEND_MODE_HARD_LIGHT: 9;
    readonly SVG_FEBLEND_MODE_SOFT_LIGHT: 10;
    readonly SVG_FEBLEND_MODE_DIFFERENCE: 11;
    readonly SVG_FEBLEND_MODE_EXCLUSION: 12;
    readonly SVG_FEBLEND_MODE_HUE: 13;
    readonly SVG_FEBLEND_MODE_SATURATION: 14;
    readonly SVG_FEBLEND_MODE_COLOR: 15;
    readonly SVG_FEBLEND_MODE_LUMINOSITY: 16;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEBlendElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEBlendElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEBlendElement: {
    prototype: SVGFEBlendElement;
    new(): SVGFEBlendElement;
    readonly SVG_FEBLEND_MODE_UNKNOWN: 0;
    readonly SVG_FEBLEND_MODE_NORMAL: 1;
    readonly SVG_FEBLEND_MODE_MULTIPLY: 2;
    readonly SVG_FEBLEND_MODE_SCREEN: 3;
    readonly SVG_FEBLEND_MODE_DARKEN: 4;
    readonly SVG_FEBLEND_MODE_LIGHTEN: 5;
    readonly SVG_FEBLEND_MODE_OVERLAY: 6;
    readonly SVG_FEBLEND_MODE_COLOR_DODGE: 7;
    readonly SVG_FEBLEND_MODE_COLOR_BURN: 8;
    readonly SVG_FEBLEND_MODE_HARD_LIGHT: 9;
    readonly SVG_FEBLEND_MODE_SOFT_LIGHT: 10;
    readonly SVG_FEBLEND_MODE_DIFFERENCE: 11;
    readonly SVG_FEBLEND_MODE_EXCLUSION: 12;
    readonly SVG_FEBLEND_MODE_HUE: 13;
    readonly SVG_FEBLEND_MODE_SATURATION: 14;
    readonly SVG_FEBLEND_MODE_COLOR: 15;
    readonly SVG_FEBLEND_MODE_LUMINOSITY: 16;
    isInstance(obj): obj is SVGFEBlendElement;
};

/**
 * Corresponds to the <feColorMatrix> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEColorMatrixElement)
 */
interface SVGFEColorMatrixElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEColorMatrixElement/in1) */
    readonly in1: SVGAnimatedString;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEColorMatrixElement/type) */
    readonly type: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEColorMatrixElement/values) */
    readonly values: SVGAnimatedNumberList;
    readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: 0;
    readonly SVG_FECOLORMATRIX_TYPE_MATRIX: 1;
    readonly SVG_FECOLORMATRIX_TYPE_SATURATE: 2;
    readonly SVG_FECOLORMATRIX_TYPE_HUEROTATE: 3;
    readonly SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 4;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEColorMatrixElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEColorMatrixElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEColorMatrixElement: {
    prototype: SVGFEColorMatrixElement;
    new(): SVGFEColorMatrixElement;
    readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: 0;
    readonly SVG_FECOLORMATRIX_TYPE_MATRIX: 1;
    readonly SVG_FECOLORMATRIX_TYPE_SATURATE: 2;
    readonly SVG_FECOLORMATRIX_TYPE_HUEROTATE: 3;
    readonly SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 4;
    isInstance(obj): obj is SVGFEColorMatrixElement;
};

/**
 * Corresponds to the <feComponentTransfer> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEComponentTransferElement)
 */
interface SVGFEComponentTransferElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEComponentTransferElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEComponentTransferElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEComponentTransferElement: {
    prototype: SVGFEComponentTransferElement;
    new(): SVGFEComponentTransferElement;
    isInstance(obj): obj is SVGFEComponentTransferElement;
};

/**
 * Corresponds to the <feComposite> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFECompositeElement)
 */
interface SVGFECompositeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly in2: SVGAnimatedString;
    readonly k1: SVGAnimatedNumber;
    readonly k2: SVGAnimatedNumber;
    readonly k3: SVGAnimatedNumber;
    readonly k4: SVGAnimatedNumber;
    readonly operator: SVGAnimatedEnumeration;
    readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: 0;
    readonly SVG_FECOMPOSITE_OPERATOR_OVER: 1;
    readonly SVG_FECOMPOSITE_OPERATOR_IN: 2;
    readonly SVG_FECOMPOSITE_OPERATOR_OUT: 3;
    readonly SVG_FECOMPOSITE_OPERATOR_ATOP: 4;
    readonly SVG_FECOMPOSITE_OPERATOR_XOR: 5;
    readonly SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: 6;
    readonly SVG_FECOMPOSITE_OPERATOR_LIGHTER: 7;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFECompositeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFECompositeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFECompositeElement: {
    prototype: SVGFECompositeElement;
    new(): SVGFECompositeElement;
    readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: 0;
    readonly SVG_FECOMPOSITE_OPERATOR_OVER: 1;
    readonly SVG_FECOMPOSITE_OPERATOR_IN: 2;
    readonly SVG_FECOMPOSITE_OPERATOR_OUT: 3;
    readonly SVG_FECOMPOSITE_OPERATOR_ATOP: 4;
    readonly SVG_FECOMPOSITE_OPERATOR_XOR: 5;
    readonly SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: 6;
    readonly SVG_FECOMPOSITE_OPERATOR_LIGHTER: 7;
    isInstance(obj): obj is SVGFECompositeElement;
};

/**
 * Corresponds to the <feConvolveMatrix> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEConvolveMatrixElement)
 */
interface SVGFEConvolveMatrixElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly bias: SVGAnimatedNumber;
    readonly divisor: SVGAnimatedNumber;
    readonly edgeMode: SVGAnimatedEnumeration;
    readonly in1: SVGAnimatedString;
    readonly kernelMatrix: SVGAnimatedNumberList;
    readonly kernelUnitLengthX: SVGAnimatedNumber;
    readonly kernelUnitLengthY: SVGAnimatedNumber;
    readonly orderX: SVGAnimatedInteger;
    readonly orderY: SVGAnimatedInteger;
    readonly preserveAlpha: SVGAnimatedBoolean;
    readonly targetX: SVGAnimatedInteger;
    readonly targetY: SVGAnimatedInteger;
    readonly SVG_EDGEMODE_UNKNOWN: 0;
    readonly SVG_EDGEMODE_DUPLICATE: 1;
    readonly SVG_EDGEMODE_WRAP: 2;
    readonly SVG_EDGEMODE_NONE: 3;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEConvolveMatrixElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEConvolveMatrixElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEConvolveMatrixElement: {
    prototype: SVGFEConvolveMatrixElement;
    new(): SVGFEConvolveMatrixElement;
    readonly SVG_EDGEMODE_UNKNOWN: 0;
    readonly SVG_EDGEMODE_DUPLICATE: 1;
    readonly SVG_EDGEMODE_WRAP: 2;
    readonly SVG_EDGEMODE_NONE: 3;
    isInstance(obj): obj is SVGFEConvolveMatrixElement;
};

/**
 * Corresponds to the <feDiffuseLighting> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEDiffuseLightingElement)
 */
interface SVGFEDiffuseLightingElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly diffuseConstant: SVGAnimatedNumber;
    readonly in1: SVGAnimatedString;
    readonly kernelUnitLengthX: SVGAnimatedNumber;
    readonly kernelUnitLengthY: SVGAnimatedNumber;
    readonly surfaceScale: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDiffuseLightingElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDiffuseLightingElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEDiffuseLightingElement: {
    prototype: SVGFEDiffuseLightingElement;
    new(): SVGFEDiffuseLightingElement;
    isInstance(obj): obj is SVGFEDiffuseLightingElement;
};

/**
 * Corresponds to the <feDisplacementMap> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEDisplacementMapElement)
 */
interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly in2: SVGAnimatedString;
    readonly scale: SVGAnimatedNumber;
    readonly xChannelSelector: SVGAnimatedEnumeration;
    readonly yChannelSelector: SVGAnimatedEnumeration;
    readonly SVG_CHANNEL_UNKNOWN: 0;
    readonly SVG_CHANNEL_R: 1;
    readonly SVG_CHANNEL_G: 2;
    readonly SVG_CHANNEL_B: 3;
    readonly SVG_CHANNEL_A: 4;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDisplacementMapElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDisplacementMapElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEDisplacementMapElement: {
    prototype: SVGFEDisplacementMapElement;
    new(): SVGFEDisplacementMapElement;
    readonly SVG_CHANNEL_UNKNOWN: 0;
    readonly SVG_CHANNEL_R: 1;
    readonly SVG_CHANNEL_G: 2;
    readonly SVG_CHANNEL_B: 3;
    readonly SVG_CHANNEL_A: 4;
    isInstance(obj): obj is SVGFEDisplacementMapElement;
};

/**
 * Corresponds to the <feDistantLight> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEDistantLightElement)
 */
interface SVGFEDistantLightElement extends SVGElement {
    readonly azimuth: SVGAnimatedNumber;
    readonly elevation: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDistantLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDistantLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEDistantLightElement: {
    prototype: SVGFEDistantLightElement;
    new(): SVGFEDistantLightElement;
    isInstance(obj): obj is SVGFEDistantLightElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEDropShadowElement) */
interface SVGFEDropShadowElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly dx: SVGAnimatedNumber;
    readonly dy: SVGAnimatedNumber;
    readonly in1: SVGAnimatedString;
    readonly stdDeviationX: SVGAnimatedNumber;
    readonly stdDeviationY: SVGAnimatedNumber;
    setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDropShadowElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEDropShadowElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEDropShadowElement: {
    prototype: SVGFEDropShadowElement;
    new(): SVGFEDropShadowElement;
    isInstance(obj): obj is SVGFEDropShadowElement;
};

/**
 * Corresponds to the <feFlood> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEFloodElement)
 */
interface SVGFEFloodElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFloodElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFloodElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEFloodElement: {
    prototype: SVGFEFloodElement;
    new(): SVGFEFloodElement;
    isInstance(obj): obj is SVGFEFloodElement;
};

/**
 * Corresponds to the <feFuncA> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEFuncAElement)
 */
interface SVGFEFuncAElement extends SVGComponentTransferFunctionElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncAElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncAElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEFuncAElement: {
    prototype: SVGFEFuncAElement;
    new(): SVGFEFuncAElement;
    isInstance(obj): obj is SVGFEFuncAElement;
};

/**
 * Corresponds to the <feFuncB> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEFuncBElement)
 */
interface SVGFEFuncBElement extends SVGComponentTransferFunctionElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncBElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncBElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEFuncBElement: {
    prototype: SVGFEFuncBElement;
    new(): SVGFEFuncBElement;
    isInstance(obj): obj is SVGFEFuncBElement;
};

/**
 * Corresponds to the <feFuncG> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEFuncGElement)
 */
interface SVGFEFuncGElement extends SVGComponentTransferFunctionElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEFuncGElement: {
    prototype: SVGFEFuncGElement;
    new(): SVGFEFuncGElement;
    isInstance(obj): obj is SVGFEFuncGElement;
};

/**
 * Corresponds to the <feFuncR> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEFuncRElement)
 */
interface SVGFEFuncRElement extends SVGComponentTransferFunctionElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncRElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEFuncRElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEFuncRElement: {
    prototype: SVGFEFuncRElement;
    new(): SVGFEFuncRElement;
    isInstance(obj): obj is SVGFEFuncRElement;
};

/**
 * Corresponds to the <feGaussianBlur> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEGaussianBlurElement)
 */
interface SVGFEGaussianBlurElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly stdDeviationX: SVGAnimatedNumber;
    readonly stdDeviationY: SVGAnimatedNumber;
    setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEGaussianBlurElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEGaussianBlurElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEGaussianBlurElement: {
    prototype: SVGFEGaussianBlurElement;
    new(): SVGFEGaussianBlurElement;
    isInstance(obj): obj is SVGFEGaussianBlurElement;
};

/**
 * Corresponds to the <feImage> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEImageElement)
 */
interface SVGFEImageElement extends SVGElement, SVGFilterPrimitiveStandardAttributes, SVGURIReference {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEImageElement) */
    crossOrigin: string | null;
    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEImageElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEImageElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEImageElement: {
    prototype: SVGFEImageElement;
    new(): SVGFEImageElement;
    isInstance(obj): obj is SVGFEImageElement;
};

/**
 * Corresponds to the <feMerge> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEMergeElement)
 */
interface SVGFEMergeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMergeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMergeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEMergeElement: {
    prototype: SVGFEMergeElement;
    new(): SVGFEMergeElement;
    isInstance(obj): obj is SVGFEMergeElement;
};

/**
 * Corresponds to the <feMergeNode> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEMergeNodeElement)
 */
interface SVGFEMergeNodeElement extends SVGElement {
    readonly in1: SVGAnimatedString;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMergeNodeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMergeNodeElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEMergeNodeElement: {
    prototype: SVGFEMergeNodeElement;
    new(): SVGFEMergeNodeElement;
    isInstance(obj): obj is SVGFEMergeNodeElement;
};

/**
 * Corresponds to the <feMorphology> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEMorphologyElement)
 */
interface SVGFEMorphologyElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly operator: SVGAnimatedEnumeration;
    readonly radiusX: SVGAnimatedNumber;
    readonly radiusY: SVGAnimatedNumber;
    readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: 0;
    readonly SVG_MORPHOLOGY_OPERATOR_ERODE: 1;
    readonly SVG_MORPHOLOGY_OPERATOR_DILATE: 2;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMorphologyElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEMorphologyElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEMorphologyElement: {
    prototype: SVGFEMorphologyElement;
    new(): SVGFEMorphologyElement;
    readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: 0;
    readonly SVG_MORPHOLOGY_OPERATOR_ERODE: 1;
    readonly SVG_MORPHOLOGY_OPERATOR_DILATE: 2;
    isInstance(obj): obj is SVGFEMorphologyElement;
};

/**
 * Corresponds to the <feOffset> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEOffsetElement)
 */
interface SVGFEOffsetElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly dx: SVGAnimatedNumber;
    readonly dy: SVGAnimatedNumber;
    readonly in1: SVGAnimatedString;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEOffsetElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEOffsetElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEOffsetElement: {
    prototype: SVGFEOffsetElement;
    new(): SVGFEOffsetElement;
    isInstance(obj): obj is SVGFEOffsetElement;
};

/**
 * Corresponds to the <fePointLight> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFEPointLightElement)
 */
interface SVGFEPointLightElement extends SVGElement {
    readonly x: SVGAnimatedNumber;
    readonly y: SVGAnimatedNumber;
    readonly z: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEPointLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFEPointLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFEPointLightElement: {
    prototype: SVGFEPointLightElement;
    new(): SVGFEPointLightElement;
    isInstance(obj): obj is SVGFEPointLightElement;
};

/**
 * Corresponds to the <feSpecularLighting> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFESpecularLightingElement)
 */
interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    readonly kernelUnitLengthX: SVGAnimatedNumber;
    readonly kernelUnitLengthY: SVGAnimatedNumber;
    readonly specularConstant: SVGAnimatedNumber;
    readonly specularExponent: SVGAnimatedNumber;
    readonly surfaceScale: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFESpecularLightingElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFESpecularLightingElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFESpecularLightingElement: {
    prototype: SVGFESpecularLightingElement;
    new(): SVGFESpecularLightingElement;
    isInstance(obj): obj is SVGFESpecularLightingElement;
};

/**
 * Corresponds to the <feSpotLight> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFESpotLightElement)
 */
interface SVGFESpotLightElement extends SVGElement {
    readonly limitingConeAngle: SVGAnimatedNumber;
    readonly pointsAtX: SVGAnimatedNumber;
    readonly pointsAtY: SVGAnimatedNumber;
    readonly pointsAtZ: SVGAnimatedNumber;
    readonly specularExponent: SVGAnimatedNumber;
    readonly x: SVGAnimatedNumber;
    readonly y: SVGAnimatedNumber;
    readonly z: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFESpotLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFESpotLightElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFESpotLightElement: {
    prototype: SVGFESpotLightElement;
    new(): SVGFESpotLightElement;
    isInstance(obj): obj is SVGFESpotLightElement;
};

/**
 * Corresponds to the <feTile> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFETileElement)
 */
interface SVGFETileElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly in1: SVGAnimatedString;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFETileElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFETileElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFETileElement: {
    prototype: SVGFETileElement;
    new(): SVGFETileElement;
    isInstance(obj): obj is SVGFETileElement;
};

/**
 * Corresponds to the <feTurbulence> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFETurbulenceElement)
 */
interface SVGFETurbulenceElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
    readonly baseFrequencyX: SVGAnimatedNumber;
    readonly baseFrequencyY: SVGAnimatedNumber;
    readonly numOctaves: SVGAnimatedInteger;
    readonly seed: SVGAnimatedNumber;
    readonly stitchTiles: SVGAnimatedEnumeration;
    readonly type: SVGAnimatedEnumeration;
    readonly SVG_TURBULENCE_TYPE_UNKNOWN: 0;
    readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: 1;
    readonly SVG_TURBULENCE_TYPE_TURBULENCE: 2;
    readonly SVG_STITCHTYPE_UNKNOWN: 0;
    readonly SVG_STITCHTYPE_STITCH: 1;
    readonly SVG_STITCHTYPE_NOSTITCH: 2;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFETurbulenceElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFETurbulenceElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFETurbulenceElement: {
    prototype: SVGFETurbulenceElement;
    new(): SVGFETurbulenceElement;
    readonly SVG_TURBULENCE_TYPE_UNKNOWN: 0;
    readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: 1;
    readonly SVG_TURBULENCE_TYPE_TURBULENCE: 2;
    readonly SVG_STITCHTYPE_UNKNOWN: 0;
    readonly SVG_STITCHTYPE_STITCH: 1;
    readonly SVG_STITCHTYPE_NOSTITCH: 2;
    isInstance(obj): obj is SVGFETurbulenceElement;
};

/**
 * Provides access to the properties of <filter> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGFilterElement)
 */
interface SVGFilterElement extends SVGElement, SVGURIReference {
    readonly filterUnits: SVGAnimatedEnumeration;
    readonly height: SVGAnimatedLength;
    readonly primitiveUnits: SVGAnimatedEnumeration;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFilterElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGFilterElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGFilterElement: {
    prototype: SVGFilterElement;
    new(): SVGFilterElement;
    isInstance(obj): obj is SVGFilterElement;
};

interface SVGFilterPrimitiveStandardAttributes {
    readonly height: SVGAnimatedLength;
    readonly result: SVGAnimatedString;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
}

interface SVGFitToViewBox {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/preserveAspectRatio) */
    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/viewBox) */
    readonly viewBox: SVGAnimatedRect;
}

/**
 * Provides access to the properties of <foreignObject> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGForeignObjectElement)
 */
interface SVGForeignObjectElement extends SVGGraphicsElement {
    readonly height: SVGAnimatedLength;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGForeignObjectElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGForeignObjectElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGForeignObjectElement: {
    prototype: SVGForeignObjectElement;
    new(): SVGForeignObjectElement;
    isInstance(obj): obj is SVGForeignObjectElement;
};

/**
 * Corresponds to the <g> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGElement)
 */
interface SVGGElement extends SVGGraphicsElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGGElement: {
    prototype: SVGGElement;
    new(): SVGGElement;
    isInstance(obj): obj is SVGGElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement) */
interface SVGGeometryElement extends SVGGraphicsElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/pathLength) */
    readonly pathLength: SVGAnimatedNumber;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/getPointAtLength) */
    getPointAtLength(distance: number): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/getTotalLength) */
    getTotalLength(): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/isPointInFill) */
    isPointInFill(point?: DOMPointInit): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGeometryElement/isPointInStroke) */
    isPointInStroke(point?: DOMPointInit): boolean;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGeometryElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGeometryElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGGeometryElement: {
    prototype: SVGGeometryElement;
    new(): SVGGeometryElement;
    isInstance(obj): obj is SVGGeometryElement;
};

/**
 * The SVGGradient interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGradientElement)
 */
interface SVGGradientElement extends SVGElement, SVGURIReference {
    readonly gradientTransform: SVGAnimatedTransformList;
    readonly gradientUnits: SVGAnimatedEnumeration;
    readonly spreadMethod: SVGAnimatedEnumeration;
    readonly SVG_SPREADMETHOD_UNKNOWN: 0;
    readonly SVG_SPREADMETHOD_PAD: 1;
    readonly SVG_SPREADMETHOD_REFLECT: 2;
    readonly SVG_SPREADMETHOD_REPEAT: 3;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGGradientElement: {
    prototype: SVGGradientElement;
    new(): SVGGradientElement;
    readonly SVG_SPREADMETHOD_UNKNOWN: 0;
    readonly SVG_SPREADMETHOD_PAD: 1;
    readonly SVG_SPREADMETHOD_REFLECT: 2;
    readonly SVG_SPREADMETHOD_REPEAT: 3;
    isInstance(obj): obj is SVGGradientElement;
};

/**
 * SVG elements whose primary purpose is to directly render graphics into a group.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGraphicsElement)
 */
interface SVGGraphicsElement extends SVGElement, SVGTests {
    readonly farthestViewportElement: SVGElement | null;
    readonly nearestViewportElement: SVGElement | null;
    readonly transform: SVGAnimatedTransformList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGGraphicsElement/getBBox) */
    getBBox(aOptions?: SVGBoundingBoxOptions): SVGRect;
    getCTM(): SVGMatrix | null;
    getScreenCTM(): SVGMatrix | null;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGraphicsElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGGraphicsElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGGraphicsElement: {
    prototype: SVGGraphicsElement;
    new(): SVGGraphicsElement;
    isInstance(obj): obj is SVGGraphicsElement;
};

/**
 * Corresponds to the <image> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement)
 */
interface SVGImageElement extends SVGGraphicsElement, MozImageLoadingContent, SVGURIReference {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/crossorigin) */
    crossOrigin: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/decoding) */
    decoding: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/height) */
    readonly height: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/preserveAspectRatio) */
    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/width) */
    readonly width: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/x) */
    readonly x: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/y) */
    readonly y: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGImageElement/decode) */
    decode(): Promise<void>;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGImageElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGImageElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGImageElement: {
    prototype: SVGImageElement;
    new(): SVGImageElement;
    readonly UNKNOWN_REQUEST: -1;
    readonly CURRENT_REQUEST: 0;
    readonly PENDING_REQUEST: 1;
    isInstance(obj): obj is SVGImageElement;
};

/**
 * Correspond to the <length> basic data type.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGLength)
 */
interface SVGLength {
    readonly unitType: number;
    value: number;
    valueAsString: string;
    valueInSpecifiedUnits: number;
    convertToSpecifiedUnits(unitType: number): void;
    newValueSpecifiedUnits(unitType: number, valueInSpecifiedUnits: number): void;
    readonly SVG_LENGTHTYPE_UNKNOWN: 0;
    readonly SVG_LENGTHTYPE_NUMBER: 1;
    readonly SVG_LENGTHTYPE_PERCENTAGE: 2;
    readonly SVG_LENGTHTYPE_EMS: 3;
    readonly SVG_LENGTHTYPE_EXS: 4;
    readonly SVG_LENGTHTYPE_PX: 5;
    readonly SVG_LENGTHTYPE_CM: 6;
    readonly SVG_LENGTHTYPE_MM: 7;
    readonly SVG_LENGTHTYPE_IN: 8;
    readonly SVG_LENGTHTYPE_PT: 9;
    readonly SVG_LENGTHTYPE_PC: 10;
}

declare var SVGLength: {
    prototype: SVGLength;
    new(): SVGLength;
    readonly SVG_LENGTHTYPE_UNKNOWN: 0;
    readonly SVG_LENGTHTYPE_NUMBER: 1;
    readonly SVG_LENGTHTYPE_PERCENTAGE: 2;
    readonly SVG_LENGTHTYPE_EMS: 3;
    readonly SVG_LENGTHTYPE_EXS: 4;
    readonly SVG_LENGTHTYPE_PX: 5;
    readonly SVG_LENGTHTYPE_CM: 6;
    readonly SVG_LENGTHTYPE_MM: 7;
    readonly SVG_LENGTHTYPE_IN: 8;
    readonly SVG_LENGTHTYPE_PT: 9;
    readonly SVG_LENGTHTYPE_PC: 10;
    isInstance(obj): obj is SVGLength;
};

/**
 * The SVGLengthList defines a list of SVGLength objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGLengthList)
 */
interface SVGLengthList {
    readonly length: number;
    readonly numberOfItems: number;
    appendItem(newItem: SVGLength): SVGLength;
    clear(): void;
    getItem(index: number): SVGLength;
    initialize(newItem: SVGLength): SVGLength;
    insertItemBefore(newItem: SVGLength, index: number): SVGLength;
    removeItem(index: number): SVGLength;
    replaceItem(newItem: SVGLength, index: number): SVGLength;
    [index: number]: SVGLength;
}

declare var SVGLengthList: {
    prototype: SVGLengthList;
    new(): SVGLengthList;
    isInstance(obj): obj is SVGLengthList;
};

/**
 * Provides access to the properties of <line> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGLineElement)
 */
interface SVGLineElement extends SVGGeometryElement {
    readonly x1: SVGAnimatedLength;
    readonly x2: SVGAnimatedLength;
    readonly y1: SVGAnimatedLength;
    readonly y2: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGLineElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGLineElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGLineElement: {
    prototype: SVGLineElement;
    new(): SVGLineElement;
    isInstance(obj): obj is SVGLineElement;
};

/**
 * Corresponds to the <linearGradient> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGLinearGradientElement)
 */
interface SVGLinearGradientElement extends SVGGradientElement {
    readonly x1: SVGAnimatedLength;
    readonly x2: SVGAnimatedLength;
    readonly y1: SVGAnimatedLength;
    readonly y2: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGLinearGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGLinearGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGLinearGradientElement: {
    prototype: SVGLinearGradientElement;
    new(): SVGLinearGradientElement;
    isInstance(obj): obj is SVGLinearGradientElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMPathElement) */
interface SVGMPathElement extends SVGElement, SVGURIReference {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGMPathElement: {
    prototype: SVGMPathElement;
    new(): SVGMPathElement;
    isInstance(obj): obj is SVGMPathElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement) */
interface SVGMarkerElement extends SVGElement, SVGFitToViewBox {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerHeight) */
    readonly markerHeight: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerUnits) */
    readonly markerUnits: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/markerWidth) */
    readonly markerWidth: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/orientAngle) */
    readonly orientAngle: SVGAnimatedAngle;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/orientType) */
    readonly orientType: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/refX) */
    readonly refX: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/refY) */
    readonly refY: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/setOrientToAngle) */
    setOrientToAngle(angle: SVGAngle): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMarkerElement/setOrientToAuto) */
    setOrientToAuto(): void;
    readonly SVG_MARKERUNITS_UNKNOWN: 0;
    readonly SVG_MARKERUNITS_USERSPACEONUSE: 1;
    readonly SVG_MARKERUNITS_STROKEWIDTH: 2;
    readonly SVG_MARKER_ORIENT_UNKNOWN: 0;
    readonly SVG_MARKER_ORIENT_AUTO: 1;
    readonly SVG_MARKER_ORIENT_ANGLE: 2;
    readonly SVG_MARKER_ORIENT_AUTO_START_REVERSE: 3;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMarkerElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMarkerElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGMarkerElement: {
    prototype: SVGMarkerElement;
    new(): SVGMarkerElement;
    readonly SVG_MARKERUNITS_UNKNOWN: 0;
    readonly SVG_MARKERUNITS_USERSPACEONUSE: 1;
    readonly SVG_MARKERUNITS_STROKEWIDTH: 2;
    readonly SVG_MARKER_ORIENT_UNKNOWN: 0;
    readonly SVG_MARKER_ORIENT_AUTO: 1;
    readonly SVG_MARKER_ORIENT_ANGLE: 2;
    readonly SVG_MARKER_ORIENT_AUTO_START_REVERSE: 3;
    isInstance(obj): obj is SVGMarkerElement;
};

/**
 * Provides access to the properties of <mask> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement)
 */
interface SVGMaskElement extends SVGElement {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/height) */
    readonly height: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/maskContentUnits) */
    readonly maskContentUnits: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/maskUnits) */
    readonly maskUnits: SVGAnimatedEnumeration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/width) */
    readonly width: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/x) */
    readonly x: SVGAnimatedLength;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMaskElement/y) */
    readonly y: SVGAnimatedLength;
    readonly SVG_MASKTYPE_LUMINANCE: 0;
    readonly SVG_MASKTYPE_ALPHA: 1;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMaskElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMaskElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGMaskElement: {
    prototype: SVGMaskElement;
    new(): SVGMaskElement;
    readonly SVG_MASKTYPE_LUMINANCE: 0;
    readonly SVG_MASKTYPE_ALPHA: 1;
    isInstance(obj): obj is SVGMaskElement;
};

interface SVGMatrix {
    a: number;
    b: number;
    c: number;
    d: number;
    e: number;
    f: number;
    flipX(): SVGMatrix;
    flipY(): SVGMatrix;
    inverse(): SVGMatrix;
    multiply(secondMatrix: SVGMatrix): SVGMatrix;
    rotate(angle: number): SVGMatrix;
    rotateFromVector(x: number, y: number): SVGMatrix;
    scale(scaleFactor: number): SVGMatrix;
    scaleNonUniform(scaleFactorX: number, scaleFactorY: number): SVGMatrix;
    skewX(angle: number): SVGMatrix;
    skewY(angle: number): SVGMatrix;
    translate(x: number, y: number): SVGMatrix;
}

declare var SVGMatrix: {
    prototype: SVGMatrix;
    new(): SVGMatrix;
    isInstance(obj): obj is SVGMatrix;
};

/**
 * Corresponds to the <metadata> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGMetadataElement)
 */
interface SVGMetadataElement extends SVGElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMetadataElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGMetadataElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGMetadataElement: {
    prototype: SVGMetadataElement;
    new(): SVGMetadataElement;
    isInstance(obj): obj is SVGMetadataElement;
};

/**
 * Corresponds to the <number> basic data type.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGNumber)
 */
interface SVGNumber {
    value: number;
}

declare var SVGNumber: {
    prototype: SVGNumber;
    new(): SVGNumber;
    isInstance(obj): obj is SVGNumber;
};

/**
 * The SVGNumberList defines a list of SVGNumber objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGNumberList)
 */
interface SVGNumberList {
    readonly length: number;
    readonly numberOfItems: number;
    appendItem(newItem: SVGNumber): SVGNumber;
    clear(): void;
    getItem(index: number): SVGNumber;
    initialize(newItem: SVGNumber): SVGNumber;
    insertItemBefore(newItem: SVGNumber, index: number): SVGNumber;
    removeItem(index: number): SVGNumber;
    replaceItem(newItem: SVGNumber, index: number): SVGNumber;
    [index: number]: SVGNumber;
}

declare var SVGNumberList: {
    prototype: SVGNumberList;
    new(): SVGNumberList;
    isInstance(obj): obj is SVGNumberList;
};

/**
 * Corresponds to the <path> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPathElement)
 */
interface SVGPathElement extends SVGGeometryElement, SVGAnimatedPathData {
    /** @deprecated */
    getPathSegAtLength(distance: number): number;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGPathElement: {
    prototype: SVGPathElement;
    new(): SVGPathElement;
    isInstance(obj): obj is SVGPathElement;
};

interface SVGPathSeg {
    readonly pathSegType: number;
    readonly pathSegTypeAsLetter: string;
    readonly PATHSEG_UNKNOWN: 0;
    readonly PATHSEG_CLOSEPATH: 1;
    readonly PATHSEG_MOVETO_ABS: 2;
    readonly PATHSEG_MOVETO_REL: 3;
    readonly PATHSEG_LINETO_ABS: 4;
    readonly PATHSEG_LINETO_REL: 5;
    readonly PATHSEG_CURVETO_CUBIC_ABS: 6;
    readonly PATHSEG_CURVETO_CUBIC_REL: 7;
    readonly PATHSEG_CURVETO_QUADRATIC_ABS: 8;
    readonly PATHSEG_CURVETO_QUADRATIC_REL: 9;
    readonly PATHSEG_ARC_ABS: 10;
    readonly PATHSEG_ARC_REL: 11;
    readonly PATHSEG_LINETO_HORIZONTAL_ABS: 12;
    readonly PATHSEG_LINETO_HORIZONTAL_REL: 13;
    readonly PATHSEG_LINETO_VERTICAL_ABS: 14;
    readonly PATHSEG_LINETO_VERTICAL_REL: 15;
    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_ABS: 16;
    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_REL: 17;
    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS: 18;
    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL: 19;
}

interface SVGPathSegArcAbs extends SVGPathSeg {
    angle: number;
    largeArcFlag: boolean;
    r1: number;
    r2: number;
    sweepFlag: boolean;
    x: number;
    y: number;
}

interface SVGPathSegArcRel extends SVGPathSeg {
    angle: number;
    largeArcFlag: boolean;
    r1: number;
    r2: number;
    sweepFlag: boolean;
    x: number;
    y: number;
}

interface SVGPathSegClosePath extends SVGPathSeg {
}

interface SVGPathSegCurvetoCubicAbs extends SVGPathSeg {
    x: number;
    x1: number;
    x2: number;
    y: number;
    y1: number;
    y2: number;
}

interface SVGPathSegCurvetoCubicRel extends SVGPathSeg {
    x: number;
    x1: number;
    x2: number;
    y: number;
    y1: number;
    y2: number;
}

interface SVGPathSegCurvetoCubicSmoothAbs extends SVGPathSeg {
    x: number;
    x2: number;
    y: number;
    y2: number;
}

interface SVGPathSegCurvetoCubicSmoothRel extends SVGPathSeg {
    x: number;
    x2: number;
    y: number;
    y2: number;
}

interface SVGPathSegCurvetoQuadraticAbs extends SVGPathSeg {
    x: number;
    x1: number;
    y: number;
    y1: number;
}

interface SVGPathSegCurvetoQuadraticRel extends SVGPathSeg {
    x: number;
    x1: number;
    y: number;
    y1: number;
}

interface SVGPathSegCurvetoQuadraticSmoothAbs extends SVGPathSeg {
    x: number;
    y: number;
}

interface SVGPathSegCurvetoQuadraticSmoothRel extends SVGPathSeg {
    x: number;
    y: number;
}

interface SVGPathSegLinetoAbs extends SVGPathSeg {
    x: number;
    y: number;
}

interface SVGPathSegLinetoHorizontalAbs extends SVGPathSeg {
    x: number;
}

interface SVGPathSegLinetoHorizontalRel extends SVGPathSeg {
    x: number;
}

interface SVGPathSegLinetoRel extends SVGPathSeg {
    x: number;
    y: number;
}

interface SVGPathSegLinetoVerticalAbs extends SVGPathSeg {
    y: number;
}

interface SVGPathSegLinetoVerticalRel extends SVGPathSeg {
    y: number;
}

interface SVGPathSegList {
    readonly length: number;
    readonly numberOfItems: number;
    getItem(index: number): SVGPathSeg;
    [index: number]: SVGPathSeg;
}

declare var SVGPathSegList: {
    prototype: SVGPathSegList;
    new(): SVGPathSegList;
    isInstance(obj): obj is SVGPathSegList;
};

interface SVGPathSegMovetoAbs extends SVGPathSeg {
    x: number;
    y: number;
}

interface SVGPathSegMovetoRel extends SVGPathSeg {
    x: number;
    y: number;
}

/**
 * Corresponds to the <pattern> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPatternElement)
 */
interface SVGPatternElement extends SVGElement, SVGFitToViewBox, SVGURIReference {
    readonly height: SVGAnimatedLength;
    readonly patternContentUnits: SVGAnimatedEnumeration;
    readonly patternTransform: SVGAnimatedTransformList;
    readonly patternUnits: SVGAnimatedEnumeration;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPatternElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPatternElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGPatternElement: {
    prototype: SVGPatternElement;
    new(): SVGPatternElement;
    isInstance(obj): obj is SVGPatternElement;
};

/**
 * An SVGPoint represents a 2D or 3D point in the SVG coordinate system.
 * @deprecated
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPoint)
 */
interface SVGPoint {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPoint/x)
     */
    x: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPoint/y)
     */
    y: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPoint/matrixTransform)
     */
    matrixTransform(matrix?: DOMMatrix2DInit): SVGPoint;
}

/** @deprecated */
declare var SVGPoint: {
    prototype: SVGPoint;
    new(): SVGPoint;
    isInstance(obj): obj is SVGPoint;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList) */
interface SVGPointList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/numberOfItems) */
    readonly numberOfItems: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/appendItem) */
    appendItem(newItem: SVGPoint): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/clear) */
    clear(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/getItem) */
    getItem(index: number): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/initialize) */
    initialize(newItem: SVGPoint): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/insertItemBefore) */
    insertItemBefore(newItem: SVGPoint, index: number): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/removeItem) */
    removeItem(index: number): SVGPoint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPointList/replaceItem) */
    replaceItem(newItem: SVGPoint, index: number): SVGPoint;
    [index: number]: SVGPoint;
}

declare var SVGPointList: {
    prototype: SVGPointList;
    new(): SVGPointList;
    isInstance(obj): obj is SVGPointList;
};

/**
 * Provides access to the properties of <polygon> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPolygonElement)
 */
interface SVGPolygonElement extends SVGGeometryElement, SVGAnimatedPoints {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPolygonElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPolygonElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGPolygonElement: {
    prototype: SVGPolygonElement;
    new(): SVGPolygonElement;
    isInstance(obj): obj is SVGPolygonElement;
};

/**
 * Provides access to the properties of <polyline> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPolylineElement)
 */
interface SVGPolylineElement extends SVGGeometryElement, SVGAnimatedPoints {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPolylineElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGPolylineElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGPolylineElement: {
    prototype: SVGPolylineElement;
    new(): SVGPolylineElement;
    isInstance(obj): obj is SVGPolylineElement;
};

/**
 * Corresponds to the preserveAspectRatio attribute, which is available for some of SVG's elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGPreserveAspectRatio)
 */
interface SVGPreserveAspectRatio {
    align: number;
    meetOrSlice: number;
    readonly SVG_PRESERVEASPECTRATIO_UNKNOWN: 0;
    readonly SVG_PRESERVEASPECTRATIO_NONE: 1;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMIN: 2;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMIN: 3;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMIN: 4;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMID: 5;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMID: 6;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMID: 7;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMAX: 8;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMAX: 9;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMAX: 10;
    readonly SVG_MEETORSLICE_UNKNOWN: 0;
    readonly SVG_MEETORSLICE_MEET: 1;
    readonly SVG_MEETORSLICE_SLICE: 2;
}

declare var SVGPreserveAspectRatio: {
    prototype: SVGPreserveAspectRatio;
    new(): SVGPreserveAspectRatio;
    readonly SVG_PRESERVEASPECTRATIO_UNKNOWN: 0;
    readonly SVG_PRESERVEASPECTRATIO_NONE: 1;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMIN: 2;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMIN: 3;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMIN: 4;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMID: 5;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMID: 6;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMID: 7;
    readonly SVG_PRESERVEASPECTRATIO_XMINYMAX: 8;
    readonly SVG_PRESERVEASPECTRATIO_XMIDYMAX: 9;
    readonly SVG_PRESERVEASPECTRATIO_XMAXYMAX: 10;
    readonly SVG_MEETORSLICE_UNKNOWN: 0;
    readonly SVG_MEETORSLICE_MEET: 1;
    readonly SVG_MEETORSLICE_SLICE: 2;
    isInstance(obj): obj is SVGPreserveAspectRatio;
};

/**
 * Corresponds to the <RadialGradient> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGRadialGradientElement)
 */
interface SVGRadialGradientElement extends SVGGradientElement {
    readonly cx: SVGAnimatedLength;
    readonly cy: SVGAnimatedLength;
    readonly fr: SVGAnimatedLength;
    readonly fx: SVGAnimatedLength;
    readonly fy: SVGAnimatedLength;
    readonly r: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGRadialGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGRadialGradientElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGRadialGradientElement: {
    prototype: SVGRadialGradientElement;
    new(): SVGRadialGradientElement;
    isInstance(obj): obj is SVGRadialGradientElement;
};

/**
 * The SVGRect represents a rectangle. Rectangles consist of an x and y coordinate pair identifying a minimum x value, a minimum y value, and a width and height, which are constrained to be non-negative.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGRect)
 */
interface SVGRect {
    height: number;
    width: number;
    x: number;
    y: number;
}

declare var SVGRect: {
    prototype: SVGRect;
    new(): SVGRect;
    isInstance(obj): obj is SVGRect;
};

/**
 * Provides access to the properties of <rect> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGRectElement)
 */
interface SVGRectElement extends SVGGeometryElement {
    readonly height: SVGAnimatedLength;
    readonly rx: SVGAnimatedLength;
    readonly ry: SVGAnimatedLength;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGRectElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGRectElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGRectElement: {
    prototype: SVGRectElement;
    new(): SVGRectElement;
    isInstance(obj): obj is SVGRectElement;
};

/**
 * Provides access to the properties of <svg> elements, as well as methods to manipulate them. This interface contains also various miscellaneous commonly-used utility methods, such as matrix operations and the ability to control the time of redraw on visual rendering devices.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGSVGElement)
 */
interface SVGSVGElement extends SVGGraphicsElement, SVGFitToViewBox, SVGZoomAndPan {
    currentScale: number;
    readonly currentTranslate: SVGPoint;
    readonly height: SVGAnimatedLength;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    animationsPaused(): boolean;
    createSVGAngle(): SVGAngle;
    createSVGLength(): SVGLength;
    createSVGMatrix(): SVGMatrix;
    createSVGNumber(): SVGNumber;
    createSVGPoint(): SVGPoint;
    createSVGRect(): SVGRect;
    createSVGTransform(): SVGTransform;
    createSVGTransformFromMatrix(matrix?: DOMMatrix2DInit): SVGTransform;
    deselectAll(): void;
    /** @deprecated */
    forceRedraw(): void;
    getCurrentTime(): number;
    getElementById(elementId: string): Element | null;
    pauseAnimations(): void;
    setCurrentTime(seconds: number): void;
    /** @deprecated */
    suspendRedraw(maxWaitMilliseconds: number): number;
    unpauseAnimations(): void;
    /** @deprecated */
    unsuspendRedraw(suspendHandleID: number): void;
    /** @deprecated */
    unsuspendRedrawAll(): void;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSVGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSVGElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGSVGElement: {
    prototype: SVGSVGElement;
    new(): SVGSVGElement;
    readonly SVG_ZOOMANDPAN_UNKNOWN: 0;
    readonly SVG_ZOOMANDPAN_DISABLE: 1;
    readonly SVG_ZOOMANDPAN_MAGNIFY: 2;
    isInstance(obj): obj is SVGSVGElement;
};

/**
 * Corresponds to the SVG <script> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGScriptElement)
 */
interface SVGScriptElement extends SVGElement, SVGURIReference {
    async: boolean;
    crossOrigin: string | null;
    defer: boolean;
    type: string;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGScriptElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGScriptElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGScriptElement: {
    prototype: SVGScriptElement;
    new(): SVGScriptElement;
    isInstance(obj): obj is SVGScriptElement;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGSetElement) */
interface SVGSetElement extends SVGAnimationElement {
    addEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGSetElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGAnimationElementEventMap>(type: K, listener: (this: SVGSetElement, ev: SVGAnimationElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGSetElement: {
    prototype: SVGSetElement;
    new(): SVGSetElement;
    isInstance(obj): obj is SVGSetElement;
};

/**
 * Corresponds to the <stop> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStopElement)
 */
interface SVGStopElement extends SVGElement {
    readonly offset: SVGAnimatedNumber;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGStopElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGStopElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGStopElement: {
    prototype: SVGStopElement;
    new(): SVGStopElement;
    isInstance(obj): obj is SVGStopElement;
};

/**
 * The SVGStringList defines a list of DOMString objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStringList)
 */
interface SVGStringList {
    readonly length: number;
    readonly numberOfItems: number;
    appendItem(newItem: string): string;
    clear(): void;
    getItem(index: number): string;
    initialize(newItem: string): string;
    insertItemBefore(newItem: string, index: number): string;
    removeItem(index: number): string;
    replaceItem(newItem: string, index: number): string;
    [index: number]: string;
}

declare var SVGStringList: {
    prototype: SVGStringList;
    new(): SVGStringList;
    isInstance(obj): obj is SVGStringList;
};

/**
 * Corresponds to the SVG <style> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStyleElement)
 */
interface SVGStyleElement extends SVGElement, LinkStyle {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStyleElement/disabled) */
    disabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStyleElement/media) */
    media: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStyleElement/title) */
    title: string;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGStyleElement/type)
     */
    type: string;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGStyleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGStyleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGStyleElement: {
    prototype: SVGStyleElement;
    new(): SVGStyleElement;
    isInstance(obj): obj is SVGStyleElement;
};

/**
 * Corresponds to the <switch> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGSwitchElement)
 */
interface SVGSwitchElement extends SVGGraphicsElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSwitchElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSwitchElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGSwitchElement: {
    prototype: SVGSwitchElement;
    new(): SVGSwitchElement;
    isInstance(obj): obj is SVGSwitchElement;
};

/**
 * Corresponds to the <symbol> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGSymbolElement)
 */
interface SVGSymbolElement extends SVGElement, SVGFitToViewBox, SVGTests {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSymbolElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGSymbolElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGSymbolElement: {
    prototype: SVGSymbolElement;
    new(): SVGSymbolElement;
    isInstance(obj): obj is SVGSymbolElement;
};

/**
 * A <tspan> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTSpanElement)
 */
interface SVGTSpanElement extends SVGTextPositioningElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTSpanElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTSpanElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTSpanElement: {
    prototype: SVGTSpanElement;
    new(): SVGTSpanElement;
    isInstance(obj): obj is SVGTSpanElement;
};

interface SVGTests {
    readonly requiredExtensions: SVGStringList;
    readonly systemLanguage: SVGStringList;
}

/**
 * Implemented by elements that support rendering child text content. It is inherited by various text-related interfaces, such as SVGTextElement, SVGTSpanElement, SVGTRefElement, SVGAltGlyphElement and SVGTextPathElement.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTextContentElement)
 */
interface SVGTextContentElement extends SVGGraphicsElement {
    readonly lengthAdjust: SVGAnimatedEnumeration;
    readonly textLength: SVGAnimatedLength;
    getCharNumAtPosition(point?: DOMPointInit): number;
    getComputedTextLength(): number;
    getEndPositionOfChar(charnum: number): SVGPoint;
    getExtentOfChar(charnum: number): SVGRect;
    getNumberOfChars(): number;
    getRotationOfChar(charnum: number): number;
    getStartPositionOfChar(charnum: number): SVGPoint;
    getSubStringLength(charnum: number, nchars: number): number;
    /** @deprecated */
    selectSubString(charnum: number, nchars: number): void;
    readonly LENGTHADJUST_UNKNOWN: 0;
    readonly LENGTHADJUST_SPACING: 1;
    readonly LENGTHADJUST_SPACINGANDGLYPHS: 2;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextContentElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextContentElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTextContentElement: {
    prototype: SVGTextContentElement;
    new(): SVGTextContentElement;
    readonly LENGTHADJUST_UNKNOWN: 0;
    readonly LENGTHADJUST_SPACING: 1;
    readonly LENGTHADJUST_SPACINGANDGLYPHS: 2;
    isInstance(obj): obj is SVGTextContentElement;
};

/**
 * Corresponds to the <text> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTextElement)
 */
interface SVGTextElement extends SVGTextPositioningElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTextElement: {
    prototype: SVGTextElement;
    new(): SVGTextElement;
    isInstance(obj): obj is SVGTextElement;
};

/**
 * Corresponds to the <textPath> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTextPathElement)
 */
interface SVGTextPathElement extends SVGTextContentElement, SVGURIReference {
    readonly method: SVGAnimatedEnumeration;
    readonly spacing: SVGAnimatedEnumeration;
    readonly startOffset: SVGAnimatedLength;
    readonly TEXTPATH_METHODTYPE_UNKNOWN: 0;
    readonly TEXTPATH_METHODTYPE_ALIGN: 1;
    readonly TEXTPATH_METHODTYPE_STRETCH: 2;
    readonly TEXTPATH_SPACINGTYPE_UNKNOWN: 0;
    readonly TEXTPATH_SPACINGTYPE_AUTO: 1;
    readonly TEXTPATH_SPACINGTYPE_EXACT: 2;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextPathElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTextPathElement: {
    prototype: SVGTextPathElement;
    new(): SVGTextPathElement;
    readonly TEXTPATH_METHODTYPE_UNKNOWN: 0;
    readonly TEXTPATH_METHODTYPE_ALIGN: 1;
    readonly TEXTPATH_METHODTYPE_STRETCH: 2;
    readonly TEXTPATH_SPACINGTYPE_UNKNOWN: 0;
    readonly TEXTPATH_SPACINGTYPE_AUTO: 1;
    readonly TEXTPATH_SPACINGTYPE_EXACT: 2;
    isInstance(obj): obj is SVGTextPathElement;
};

/**
 * Implemented by elements that support attributes that position individual text glyphs. It is inherited by SVGTextElement, SVGTSpanElement, SVGTRefElement and SVGAltGlyphElement.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTextPositioningElement)
 */
interface SVGTextPositioningElement extends SVGTextContentElement {
    readonly dx: SVGAnimatedLengthList;
    readonly dy: SVGAnimatedLengthList;
    readonly rotate: SVGAnimatedNumberList;
    readonly x: SVGAnimatedLengthList;
    readonly y: SVGAnimatedLengthList;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextPositioningElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTextPositioningElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTextPositioningElement: {
    prototype: SVGTextPositioningElement;
    new(): SVGTextPositioningElement;
    isInstance(obj): obj is SVGTextPositioningElement;
};

/**
 * Corresponds to the <title> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTitleElement)
 */
interface SVGTitleElement extends SVGElement {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTitleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGTitleElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGTitleElement: {
    prototype: SVGTitleElement;
    new(): SVGTitleElement;
    isInstance(obj): obj is SVGTitleElement;
};

/**
 * SVGTransform is the interface for one of the component transformations within an SVGTransformList; thus, an SVGTransform object corresponds to a single component (e.g., scale(…) or matrix(…)) within a transform attribute.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTransform)
 */
interface SVGTransform {
    readonly angle: number;
    readonly matrix: SVGMatrix;
    readonly type: number;
    setMatrix(matrix?: DOMMatrix2DInit): void;
    setRotate(angle: number, cx: number, cy: number): void;
    setScale(sx: number, sy: number): void;
    setSkewX(angle: number): void;
    setSkewY(angle: number): void;
    setTranslate(tx: number, ty: number): void;
    readonly SVG_TRANSFORM_UNKNOWN: 0;
    readonly SVG_TRANSFORM_MATRIX: 1;
    readonly SVG_TRANSFORM_TRANSLATE: 2;
    readonly SVG_TRANSFORM_SCALE: 3;
    readonly SVG_TRANSFORM_ROTATE: 4;
    readonly SVG_TRANSFORM_SKEWX: 5;
    readonly SVG_TRANSFORM_SKEWY: 6;
}

declare var SVGTransform: {
    prototype: SVGTransform;
    new(): SVGTransform;
    readonly SVG_TRANSFORM_UNKNOWN: 0;
    readonly SVG_TRANSFORM_MATRIX: 1;
    readonly SVG_TRANSFORM_TRANSLATE: 2;
    readonly SVG_TRANSFORM_SCALE: 3;
    readonly SVG_TRANSFORM_ROTATE: 4;
    readonly SVG_TRANSFORM_SKEWX: 5;
    readonly SVG_TRANSFORM_SKEWY: 6;
    isInstance(obj): obj is SVGTransform;
};

/**
 * The SVGTransformList defines a list of SVGTransform objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGTransformList)
 */
interface SVGTransformList {
    readonly length: number;
    readonly numberOfItems: number;
    appendItem(newItem: SVGTransform): SVGTransform;
    clear(): void;
    consolidate(): SVGTransform | null;
    createSVGTransformFromMatrix(matrix?: DOMMatrix2DInit): SVGTransform;
    getItem(index: number): SVGTransform;
    initialize(newItem: SVGTransform): SVGTransform;
    insertItemBefore(newItem: SVGTransform, index: number): SVGTransform;
    removeItem(index: number): SVGTransform;
    replaceItem(newItem: SVGTransform, index: number): SVGTransform;
    [index: number]: SVGTransform;
}

declare var SVGTransformList: {
    prototype: SVGTransformList;
    new(): SVGTransformList;
    isInstance(obj): obj is SVGTransformList;
};

interface SVGURIReference {
    readonly href: SVGAnimatedString;
}

/**
 * A commonly used set of constants used for reflecting gradientUnits, patternContentUnits and other similar attributes.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGUnitTypes)
 */
interface SVGUnitTypes {
    readonly SVG_UNIT_TYPE_UNKNOWN: 0;
    readonly SVG_UNIT_TYPE_USERSPACEONUSE: 1;
    readonly SVG_UNIT_TYPE_OBJECTBOUNDINGBOX: 2;
}

declare var SVGUnitTypes: {
    prototype: SVGUnitTypes;
    new(): SVGUnitTypes;
    readonly SVG_UNIT_TYPE_UNKNOWN: 0;
    readonly SVG_UNIT_TYPE_USERSPACEONUSE: 1;
    readonly SVG_UNIT_TYPE_OBJECTBOUNDINGBOX: 2;
    isInstance(obj): obj is SVGUnitTypes;
};

/**
 * Corresponds to the <use> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGUseElement)
 */
interface SVGUseElement extends SVGGraphicsElement, SVGURIReference {
    readonly height: SVGAnimatedLength;
    readonly width: SVGAnimatedLength;
    readonly x: SVGAnimatedLength;
    readonly y: SVGAnimatedLength;
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGUseElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGUseElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGUseElement: {
    prototype: SVGUseElement;
    new(): SVGUseElement;
    isInstance(obj): obj is SVGUseElement;
};

/**
 * Provides access to the properties of <view> elements, as well as methods to manipulate them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SVGViewElement)
 */
interface SVGViewElement extends SVGElement, SVGFitToViewBox, SVGZoomAndPan {
    addEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGViewElement, ev: SVGElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SVGElementEventMap>(type: K, listener: (this: SVGViewElement, ev: SVGElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SVGViewElement: {
    prototype: SVGViewElement;
    new(): SVGViewElement;
    readonly SVG_ZOOMANDPAN_UNKNOWN: 0;
    readonly SVG_ZOOMANDPAN_DISABLE: 1;
    readonly SVG_ZOOMANDPAN_MAGNIFY: 2;
    isInstance(obj): obj is SVGViewElement;
};

interface SVGZoomAndPan {
    zoomAndPan: number;
    readonly SVG_ZOOMANDPAN_UNKNOWN: 0;
    readonly SVG_ZOOMANDPAN_DISABLE: 1;
    readonly SVG_ZOOMANDPAN_MAGNIFY: 2;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Sanitizer)
 */
interface Sanitizer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Sanitizer/sanitize) */
    sanitize(input: SanitizerInput): DocumentFragment;
}

declare var Sanitizer: {
    prototype: Sanitizer;
    new(sanitizerConfig?: SanitizerConfig): Sanitizer;
    isInstance(obj): obj is Sanitizer;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Scheduler) */
interface Scheduler {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Scheduler/postTask) */
    postTask(callback: SchedulerPostTaskCallback, options?: SchedulerPostTaskOptions): Promise<any>;
}

declare var Scheduler: {
    prototype: Scheduler;
    new(): Scheduler;
    isInstance(obj): obj is Scheduler;
};

interface ScreenEventMap {
    "change": Event;
    "mozorientationchange": Event;
}

/**
 * A screen, usually the one on which the current window is being rendered, and is obtained using window.screen.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen)
 */
interface Screen extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/availHeight) */
    readonly availHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/availLeft) */
    readonly availLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/availTop) */
    readonly availTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/availWidth) */
    readonly availWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/colorDepth) */
    readonly colorDepth: number;
    readonly colorGamut: ScreenColorGamut;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/left) */
    readonly left: number;
    readonly luminance: ScreenLuminance | null;
    /**
     * @deprecated This is a legacy alias of `orientation`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/orientation)
     */
    readonly mozOrientation: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/change_event) */
    onchange: ((this: Screen, ev: Event) => any) | null;
    /**
     * @deprecated This is a legacy alias of `onorientationchange`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/orientationchange_event)
     */
    onmozorientationchange: ((this: Screen, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/orientation) */
    readonly orientation: ScreenOrientation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/pixelDepth) */
    readonly pixelDepth: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/top)
     */
    readonly top: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/width) */
    readonly width: number;
    /**
     * @deprecated This is a legacy alias of `lockOrientation`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/lockOrientation)
     */
    mozLockOrientation(orientation: string): boolean;
    mozLockOrientation(orientation: string[]): boolean;
    /**
     * @deprecated This is a legacy alias of `unlockOrientation`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Screen/unlockOrientation)
     */
    mozUnlockOrientation(): void;
    addEventListener<K extends keyof ScreenEventMap>(type: K, listener: (this: Screen, ev: ScreenEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ScreenEventMap>(type: K, listener: (this: Screen, ev: ScreenEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Screen: {
    prototype: Screen;
    new(): Screen;
    isInstance(obj): obj is Screen;
};

interface ScreenLuminance {
    readonly max: number;
    readonly maxAverage: number;
    readonly min: number;
}

declare var ScreenLuminance: {
    prototype: ScreenLuminance;
    new(): ScreenLuminance;
    isInstance(obj): obj is ScreenLuminance;
};

interface ScreenOrientationEventMap {
    "change": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation) */
interface ScreenOrientation extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/angle) */
    readonly angle: number;
    onchange: ((this: ScreenOrientation, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/type) */
    readonly type: OrientationType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/lock) */
    lock(orientation: OrientationLockType): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/unlock) */
    unlock(): void;
    addEventListener<K extends keyof ScreenOrientationEventMap>(type: K, listener: (this: ScreenOrientation, ev: ScreenOrientationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ScreenOrientationEventMap>(type: K, listener: (this: ScreenOrientation, ev: ScreenOrientationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ScreenOrientation: {
    prototype: ScreenOrientation;
    new(): ScreenOrientation;
    isInstance(obj): obj is ScreenOrientation;
};

interface ScriptProcessorNodeEventMap {
    "audioprocess": Event;
}

/**
 * Allows the generation, processing, or analyzing of audio using JavaScript.
 * @deprecated As of the August 29 2014 Web Audio API spec publication, this feature has been marked as deprecated, and was replaced by AudioWorklet (see AudioWorkletNode).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScriptProcessorNode)
 */
interface ScriptProcessorNode extends AudioNode, AudioNodePassThrough {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScriptProcessorNode/bufferSize)
     */
    readonly bufferSize: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScriptProcessorNode/audioprocess_event)
     */
    onaudioprocess: ((this: ScriptProcessorNode, ev: Event) => any) | null;
    addEventListener<K extends keyof ScriptProcessorNodeEventMap>(type: K, listener: (this: ScriptProcessorNode, ev: ScriptProcessorNodeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ScriptProcessorNodeEventMap>(type: K, listener: (this: ScriptProcessorNode, ev: ScriptProcessorNodeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/** @deprecated */
declare var ScriptProcessorNode: {
    prototype: ScriptProcessorNode;
    new(): ScriptProcessorNode;
    isInstance(obj): obj is ScriptProcessorNode;
};

interface ScrollAreaEvent extends UIEvent {
    readonly height: number;
    readonly width: number;
    readonly x: number;
    readonly y: number;
    initScrollAreaEvent(type: string, canBubble?: boolean, cancelable?: boolean, view?: Window | null, detail?: number, x?: number, y?: number, width?: number, height?: number): void;
}

declare var ScrollAreaEvent: {
    prototype: ScrollAreaEvent;
    new(): ScrollAreaEvent;
    isInstance(obj): obj is ScrollAreaEvent;
};

interface ScrollViewChangeEvent extends Event {
    readonly state: ScrollState;
}

declare var ScrollViewChangeEvent: {
    prototype: ScrollViewChangeEvent;
    new(type: string, eventInit?: ScrollViewChangeEventInit): ScrollViewChangeEvent;
    isInstance(obj): obj is ScrollViewChangeEvent;
};

/**
 * Inherits from Event, and represents the event object of an event sent on a document or worker when its content security policy is violated.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent)
 */
interface SecurityPolicyViolationEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/blockedURI) */
    readonly blockedURI: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/columnNumber) */
    readonly columnNumber: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/disposition) */
    readonly disposition: SecurityPolicyViolationEventDisposition;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/documentURI) */
    readonly documentURI: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/effectiveDirective) */
    readonly effectiveDirective: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/lineNumber) */
    readonly lineNumber: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/originalPolicy) */
    readonly originalPolicy: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/referrer) */
    readonly referrer: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/sample) */
    readonly sample: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/sourceFile) */
    readonly sourceFile: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/statusCode) */
    readonly statusCode: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SecurityPolicyViolationEvent/violatedDirective) */
    readonly violatedDirective: string;
}

declare var SecurityPolicyViolationEvent: {
    prototype: SecurityPolicyViolationEvent;
    new(type: string, eventInitDict?: SecurityPolicyViolationEventInit): SecurityPolicyViolationEvent;
    isInstance(obj): obj is SecurityPolicyViolationEvent;
};

/**
 * A Selection object represents the range of text selected by the user or the current position of the caret. To obtain a Selection object for examination or modification, call Window.getSelection().
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection)
 */
interface Selection {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/anchorNode) */
    readonly anchorNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/anchorOffset) */
    readonly anchorOffset: number;
    caretBidiLevel: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/focusNode) */
    readonly focusNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/focusOffset) */
    readonly focusOffset: number;
    interlinePosition: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/isCollapsed) */
    readonly isCollapsed: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/rangeCount) */
    readonly rangeCount: number;
    readonly selectionType: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/type) */
    readonly type: string;
    GetRangesForInterval(beginNode: Node, beginOffset: number, endNode: Node, endOffset: number, allowAdjacent: boolean): Range[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/addRange) */
    addRange(range: Range): void;
    addSelectionListener(newListener: nsISelectionListener): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/collapse) */
    collapse(node: Node | null, offset?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/collapseToEnd) */
    collapseToEnd(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/collapseToStart) */
    collapseToStart(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/containsNode) */
    containsNode(node: Node, allowPartialContainment?: boolean): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/deleteFromDocument) */
    deleteFromDocument(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/removeAllRanges) */
    empty(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/extend) */
    extend(node: Node, offset?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getRangeAt) */
    getRangeAt(index: number): Range;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/modify) */
    modify(alter: string, direction: string, granularity: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/removeAllRanges) */
    removeAllRanges(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/removeRange) */
    removeRange(range: Range): void;
    removeSelectionListener(listenerToRemove: nsISelectionListener): void;
    resetColors(): void;
    scrollIntoView(aRegion: number, aIsSynchronous: boolean, aVPercent: number, aHPercent: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/selectAllChildren) */
    selectAllChildren(node: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/setBaseAndExtent) */
    setBaseAndExtent(anchorNode: Node, anchorOffset: number, focusNode: Node, focusOffset: number): void;
    setColors(aForegroundColor: string, aBackgroundColor: string, aAltForegroundColor: string, aAltBackgroundColor: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/collapse) */
    setPosition(node: Node | null, offset?: number): void;
    toStringWithFormat(formatType: string, flags: number, wrapColumn: number): string;
    toString(): string;
}

declare var Selection: {
    prototype: Selection;
    new(): Selection;
    isInstance(obj): obj is Selection;
};

interface ServiceWorkerEventMap extends AbstractWorkerEventMap {
    "statechange": Event;
}

/**
 * This ServiceWorker API interface provides a reference to a service worker. Multiple browsing contexts (e.g. pages, workers, etc.) can be associated with the same service worker, each through a unique ServiceWorker object.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker)
 */
interface ServiceWorker extends EventTarget, AbstractWorker {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker/statechange_event) */
    onstatechange: ((this: ServiceWorker, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker/scriptURL) */
    readonly scriptURL: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker/state) */
    readonly state: ServiceWorkerState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorker/postMessage) */
    postMessage(message: any, transferable: any[]): void;
    postMessage(message: any, options?: StructuredSerializeOptions): void;
    addEventListener<K extends keyof ServiceWorkerEventMap>(type: K, listener: (this: ServiceWorker, ev: ServiceWorkerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ServiceWorkerEventMap>(type: K, listener: (this: ServiceWorker, ev: ServiceWorkerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ServiceWorker: {
    prototype: ServiceWorker;
    new(): ServiceWorker;
    isInstance(obj): obj is ServiceWorker;
};

interface ServiceWorkerContainerEventMap {
    "controllerchange": Event;
    "message": Event;
    "messageerror": Event;
}

/**
 * The ServiceWorkerContainer interface of the ServiceWorker API provides an object representing the service worker as an overall unit in the network ecosystem, including facilities to register, unregister and update service workers, and access the state of service workers and their registrations.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer)
 */
interface ServiceWorkerContainer extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controller) */
    readonly controller: ServiceWorker | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/controllerchange_event) */
    oncontrollerchange: ((this: ServiceWorkerContainer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/message_event) */
    onmessage: ((this: ServiceWorkerContainer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/messageerror_event) */
    onmessageerror: ((this: ServiceWorkerContainer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/ready) */
    readonly ready: Promise<ServiceWorkerRegistration>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/getRegistration) */
    getRegistration(documentURL?: string | URL): Promise<ServiceWorkerRegistration | undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/getRegistrations) */
    getRegistrations(): Promise<ServiceWorkerRegistration[]>;
    getScopeForUrl(url: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/register) */
    register(scriptURL: string | URL, options?: RegistrationOptions): Promise<ServiceWorkerRegistration>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerContainer/startMessages) */
    startMessages(): void;
    addEventListener<K extends keyof ServiceWorkerContainerEventMap>(type: K, listener: (this: ServiceWorkerContainer, ev: ServiceWorkerContainerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ServiceWorkerContainerEventMap>(type: K, listener: (this: ServiceWorkerContainer, ev: ServiceWorkerContainerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ServiceWorkerContainer: {
    prototype: ServiceWorkerContainer;
    new(): ServiceWorkerContainer;
    isInstance(obj): obj is ServiceWorkerContainer;
};

interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
    "activate": Event;
    "fetch": Event;
    "install": Event;
    "message": Event;
    "messageerror": Event;
    "notificationclick": Event;
    "notificationclose": Event;
    "push": Event;
    "pushsubscriptionchange": Event;
}

/**
 * This ServiceWorker API interface represents the global execution context of a service worker.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope)
 */
interface ServiceWorkerGlobalScope extends WorkerGlobalScope, ExtensionGlobalsMixin {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/clients) */
    readonly clients: Clients;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/activate_event) */
    onactivate: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/fetch_event) */
    onfetch: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/install_event) */
    oninstall: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/message_event) */
    onmessage: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event) */
    onmessageerror: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event) */
    onnotificationclick: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event) */
    onnotificationclose: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
    onpush: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
    readonly registration: ServiceWorkerRegistration;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting) */
    skipWaiting(): Promise<void>;
    addEventListener<K extends keyof ServiceWorkerGlobalScopeEventMap>(type: K, listener: (this: ServiceWorkerGlobalScope, ev: ServiceWorkerGlobalScopeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ServiceWorkerGlobalScopeEventMap>(type: K, listener: (this: ServiceWorkerGlobalScope, ev: ServiceWorkerGlobalScopeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ServiceWorkerGlobalScope: {
    prototype: ServiceWorkerGlobalScope;
    new(): ServiceWorkerGlobalScope;
    isInstance(obj): obj is ServiceWorkerGlobalScope;
};

interface ServiceWorkerRegistrationEventMap {
    "updatefound": Event;
}

/**
 * This ServiceWorker API interface represents the service worker registration. You register a service worker to control one or more pages that share the same origin.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration)
 */
interface ServiceWorkerRegistration extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/active) */
    readonly active: ServiceWorker | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/installing) */
    readonly installing: ServiceWorker | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/navigationPreload) */
    readonly navigationPreload: NavigationPreloadManager;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/updatefound_event) */
    onupdatefound: ((this: ServiceWorkerRegistration, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/pushManager) */
    readonly pushManager: PushManager;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/scope) */
    readonly scope: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/updateViaCache) */
    readonly updateViaCache: ServiceWorkerUpdateViaCache;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/waiting) */
    readonly waiting: ServiceWorker | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/getNotifications) */
    getNotifications(filter?: GetNotificationOptions): Promise<Notification[]>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/showNotification) */
    showNotification(title: string, options?: NotificationOptions): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/unregister) */
    unregister(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerRegistration/update) */
    update(): Promise<void>;
    addEventListener<K extends keyof ServiceWorkerRegistrationEventMap>(type: K, listener: (this: ServiceWorkerRegistration, ev: ServiceWorkerRegistrationEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ServiceWorkerRegistrationEventMap>(type: K, listener: (this: ServiceWorkerRegistration, ev: ServiceWorkerRegistrationEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ServiceWorkerRegistration: {
    prototype: ServiceWorkerRegistration;
    new(): ServiceWorkerRegistration;
    isInstance(obj): obj is ServiceWorkerRegistration;
};

interface SessionStoreFormData {
    readonly children: (SessionStoreFormData | null)[] | null;
    readonly id: Record<string, FormDataValue> | null;
    readonly innerHTML: string | null;
    readonly url: string | null;
    readonly xpath: Record<string, FormDataValue> | null;
    toJSON(): any;
}

declare var SessionStoreFormData: {
    prototype: SessionStoreFormData;
    new(): SessionStoreFormData;
    isInstance(obj): obj is SessionStoreFormData;
};

interface SessionStoreScrollData {
    readonly children: (SessionStoreScrollData | null)[] | null;
    readonly scroll: string | null;
    toJSON(): any;
}

declare var SessionStoreScrollData: {
    prototype: SessionStoreScrollData;
    new(): SessionStoreScrollData;
    isInstance(obj): obj is SessionStoreScrollData;
};

interface ShadowRealmGlobalScope {
}

interface ShadowRootEventMap {
    "slotchange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot) */
interface ShadowRoot extends DocumentFragment, DocumentOrShadowRoot {
    readonly clonable: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot/delegatesFocus) */
    readonly delegatesFocus: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot/host) */
    readonly host: Element;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot/innerHTML) */
    innerHTML: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot/mode) */
    readonly mode: ShadowRootMode;
    onslotchange: ((this: ShadowRoot, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ShadowRoot/slotAssignment) */
    readonly slotAssignment: SlotAssignmentMode;
    /** Throws a "NotSupportedError" DOMException if context object is a shadow root. */
    createElementAndAppendChildAt(parentNode: Node, localName: string): Node;
    getElementById(elementId: string): Element | null;
    importNodeAndAppendChildAt(parentNode: Node, node: Node, deep?: boolean): Node;
    isUAWidget(): boolean;
    setHTMLUnsafe(html: string): void;
    setIsUAWidget(): void;
    addEventListener<K extends keyof ShadowRootEventMap>(type: K, listener: (this: ShadowRoot, ev: ShadowRootEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ShadowRootEventMap>(type: K, listener: (this: ShadowRoot, ev: ShadowRootEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var ShadowRoot: {
    prototype: ShadowRoot;
    new(): ShadowRoot;
    isInstance(obj): obj is ShadowRoot;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorker) */
interface SharedWorker extends EventTarget, AbstractWorker {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorker/port) */
    readonly port: MessagePort;
    addEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: SharedWorker, ev: AbstractWorkerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof AbstractWorkerEventMap>(type: K, listener: (this: SharedWorker, ev: AbstractWorkerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SharedWorker: {
    prototype: SharedWorker;
    new(scriptURL: string | URL, options?: string | WorkerOptions): SharedWorker;
    isInstance(obj): obj is SharedWorker;
};

interface SharedWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
    "connect": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorkerGlobalScope) */
interface SharedWorkerGlobalScope extends WorkerGlobalScope {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorkerGlobalScope/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorkerGlobalScope/connect_event) */
    onconnect: ((this: SharedWorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SharedWorkerGlobalScope/close) */
    close(): void;
    addEventListener<K extends keyof SharedWorkerGlobalScopeEventMap>(type: K, listener: (this: SharedWorkerGlobalScope, ev: SharedWorkerGlobalScopeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SharedWorkerGlobalScopeEventMap>(type: K, listener: (this: SharedWorkerGlobalScope, ev: SharedWorkerGlobalScopeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SharedWorkerGlobalScope: {
    prototype: SharedWorkerGlobalScope;
    new(): SharedWorkerGlobalScope;
    isInstance(obj): obj is SharedWorkerGlobalScope;
};

interface SimpleGestureEvent extends MouseEvent {
    allowedDirections: number;
    readonly clickCount: number;
    readonly delta: number;
    readonly direction: number;
    initSimpleGestureEvent(typeArg: string, canBubbleArg?: boolean, cancelableArg?: boolean, viewArg?: Window | null, detailArg?: number, screenXArg?: number, screenYArg?: number, clientXArg?: number, clientYArg?: number, ctrlKeyArg?: boolean, altKeyArg?: boolean, shiftKeyArg?: boolean, metaKeyArg?: boolean, buttonArg?: number, relatedTargetArg?: EventTarget | null, allowedDirectionsArg?: number, directionArg?: number, deltaArg?: number, clickCount?: number): void;
    readonly DIRECTION_UP: 1;
    readonly DIRECTION_DOWN: 2;
    readonly DIRECTION_LEFT: 4;
    readonly DIRECTION_RIGHT: 8;
    readonly ROTATION_COUNTERCLOCKWISE: 1;
    readonly ROTATION_CLOCKWISE: 2;
}

declare var SimpleGestureEvent: {
    prototype: SimpleGestureEvent;
    new(): SimpleGestureEvent;
    readonly DIRECTION_UP: 1;
    readonly DIRECTION_DOWN: 2;
    readonly DIRECTION_LEFT: 4;
    readonly DIRECTION_RIGHT: 8;
    readonly ROTATION_COUNTERCLOCKWISE: 1;
    readonly ROTATION_CLOCKWISE: 2;
    isInstance(obj): obj is SimpleGestureEvent;
};

interface SourceBufferEventMap {
    "abort": Event;
    "error": ErrorEvent;
    "update": Event;
    "updateend": Event;
    "updatestart": Event;
}

/**
 * A chunk of media to be passed into an HTMLMediaElement and played, via a MediaSource object. This can be made up of one or several media segments.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer)
 */
interface SourceBuffer extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/appendWindowEnd) */
    appendWindowEnd: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/appendWindowStart) */
    appendWindowStart: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/buffered) */
    readonly buffered: TimeRanges;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/mode) */
    mode: SourceBufferAppendMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/abort_event) */
    onabort: ((this: SourceBuffer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/update_event) */
    onupdate: ((this: SourceBuffer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/updateend_event) */
    onupdateend: ((this: SourceBuffer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/updatestart_event) */
    onupdatestart: ((this: SourceBuffer, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/timestampOffset) */
    timestampOffset: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/updating) */
    readonly updating: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/abort) */
    abort(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/appendBuffer) */
    appendBuffer(data: ArrayBuffer): void;
    appendBuffer(data: ArrayBufferView): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/appendBufferAsync) */
    appendBufferAsync(data: ArrayBuffer): Promise<void>;
    appendBufferAsync(data: ArrayBufferView): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/changeType) */
    changeType(type: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/remove) */
    remove(start: number, end: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBuffer/removeAsync) */
    removeAsync(start: number, end: number): Promise<void>;
    addEventListener<K extends keyof SourceBufferEventMap>(type: K, listener: (this: SourceBuffer, ev: SourceBufferEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SourceBufferEventMap>(type: K, listener: (this: SourceBuffer, ev: SourceBufferEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SourceBuffer: {
    prototype: SourceBuffer;
    new(): SourceBuffer;
    isInstance(obj): obj is SourceBuffer;
};

interface SourceBufferListEventMap {
    "addsourcebuffer": Event;
    "removesourcebuffer": Event;
}

/**
 * A simple container list for multiple SourceBuffer objects.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBufferList)
 */
interface SourceBufferList extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBufferList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBufferList/addsourcebuffer_event) */
    onaddsourcebuffer: ((this: SourceBufferList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SourceBufferList/removesourcebuffer_event) */
    onremovesourcebuffer: ((this: SourceBufferList, ev: Event) => any) | null;
    addEventListener<K extends keyof SourceBufferListEventMap>(type: K, listener: (this: SourceBufferList, ev: SourceBufferListEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SourceBufferListEventMap>(type: K, listener: (this: SourceBufferList, ev: SourceBufferListEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: SourceBuffer;
}

declare var SourceBufferList: {
    prototype: SourceBufferList;
    new(): SourceBufferList;
    isInstance(obj): obj is SourceBufferList;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammar) */
interface SpeechGrammar {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammar/src) */
    src: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammar/weight) */
    weight: number;
}

declare var SpeechGrammar: {
    prototype: SpeechGrammar;
    new(): SpeechGrammar;
    isInstance(obj): obj is SpeechGrammar;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammarList) */
interface SpeechGrammarList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/addFromString) */
    addFromString(string: string, weight?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/addFromURI) */
    addFromURI(src: string, weight?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechGrammarList/item) */
    item(index: number): SpeechGrammar;
    [index: number]: SpeechGrammar;
}

declare var SpeechGrammarList: {
    prototype: SpeechGrammarList;
    new(): SpeechGrammarList;
    isInstance(obj): obj is SpeechGrammarList;
};

interface SpeechRecognitionEventMap {
    "audioend": Event;
    "audiostart": Event;
    "end": Event;
    "error": ErrorEvent;
    "nomatch": Event;
    "result": Event;
    "soundend": Event;
    "soundstart": Event;
    "speechend": Event;
    "speechstart": Event;
    "start": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition) */
interface SpeechRecognition extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/continuous) */
    continuous: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/grammars) */
    grammars: SpeechGrammarList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/interimResults) */
    interimResults: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/lang) */
    lang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/maxAlternatives) */
    maxAlternatives: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/audioend_event) */
    onaudioend: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/audiostart_event) */
    onaudiostart: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/end_event) */
    onend: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/nomatch_event) */
    onnomatch: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/result_event) */
    onresult: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/soundend_event) */
    onsoundend: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/soundstart_event) */
    onsoundstart: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/speechend_event) */
    onspeechend: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/speechstart_event) */
    onspeechstart: ((this: SpeechRecognition, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/start_event) */
    onstart: ((this: SpeechRecognition, ev: Event) => any) | null;
    serviceURI: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/abort) */
    abort(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/start) */
    start(stream?: MediaStream): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognition/stop) */
    stop(): void;
    addEventListener<K extends keyof SpeechRecognitionEventMap>(type: K, listener: (this: SpeechRecognition, ev: SpeechRecognitionEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SpeechRecognitionEventMap>(type: K, listener: (this: SpeechRecognition, ev: SpeechRecognitionEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SpeechRecognition: {
    prototype: SpeechRecognition;
    new(): SpeechRecognition;
    isInstance(obj): obj is SpeechRecognition;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative) */
interface SpeechRecognitionAlternative {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative/confidence) */
    readonly confidence: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionAlternative/transcript) */
    readonly transcript: string;
}

declare var SpeechRecognitionAlternative: {
    prototype: SpeechRecognitionAlternative;
    new(): SpeechRecognitionAlternative;
    isInstance(obj): obj is SpeechRecognitionAlternative;
};

interface SpeechRecognitionError extends Event {
    "error": ErrorEvent;
    readonly message: string | null;
}

declare var SpeechRecognitionError: {
    prototype: SpeechRecognitionError;
    new(type: string, eventInitDict?: SpeechRecognitionErrorInit): SpeechRecognitionError;
    isInstance(obj): obj is SpeechRecognitionError;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent) */
interface SpeechRecognitionEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/emma)
     */
    readonly emma: Document | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/interpretation)
     */
    readonly interpretation: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/resultIndex) */
    readonly resultIndex: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionEvent/results) */
    readonly results: SpeechRecognitionResultList | null;
}

declare var SpeechRecognitionEvent: {
    prototype: SpeechRecognitionEvent;
    new(type: string, eventInitDict?: SpeechRecognitionEventInit): SpeechRecognitionEvent;
    isInstance(obj): obj is SpeechRecognitionEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult) */
interface SpeechRecognitionResult {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/isFinal) */
    readonly isFinal: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResult/item) */
    item(index: number): SpeechRecognitionAlternative;
    [index: number]: SpeechRecognitionAlternative;
}

declare var SpeechRecognitionResult: {
    prototype: SpeechRecognitionResult;
    new(): SpeechRecognitionResult;
    isInstance(obj): obj is SpeechRecognitionResult;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList) */
interface SpeechRecognitionResultList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechRecognitionResultList/item) */
    item(index: number): SpeechRecognitionResult;
    [index: number]: SpeechRecognitionResult;
}

declare var SpeechRecognitionResultList: {
    prototype: SpeechRecognitionResultList;
    new(): SpeechRecognitionResultList;
    isInstance(obj): obj is SpeechRecognitionResultList;
};

interface SpeechSynthesisEventMap {
    "voiceschanged": Event;
}

/**
 * This Web Speech API interface is the controller interface for the speech service; this can be used to retrieve information about the synthesis voices available on the device, start and pause speech, and other commands besides.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis)
 */
interface SpeechSynthesis extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/voiceschanged_event) */
    onvoiceschanged: ((this: SpeechSynthesis, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/paused) */
    readonly paused: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/pending) */
    readonly pending: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/speaking) */
    readonly speaking: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/cancel) */
    cancel(): void;
    forceEnd(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/getVoices) */
    getVoices(): SpeechSynthesisVoice[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/pause) */
    pause(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/resume) */
    resume(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesis/speak) */
    speak(utterance: SpeechSynthesisUtterance): void;
    addEventListener<K extends keyof SpeechSynthesisEventMap>(type: K, listener: (this: SpeechSynthesis, ev: SpeechSynthesisEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SpeechSynthesisEventMap>(type: K, listener: (this: SpeechSynthesis, ev: SpeechSynthesisEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SpeechSynthesis: {
    prototype: SpeechSynthesis;
    new(): SpeechSynthesis;
    isInstance(obj): obj is SpeechSynthesis;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisErrorEvent) */
interface SpeechSynthesisErrorEvent extends SpeechSynthesisEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisErrorEvent/error) */
    "error": ErrorEvent;
}

declare var SpeechSynthesisErrorEvent: {
    prototype: SpeechSynthesisErrorEvent;
    new(type: string, eventInitDict: SpeechSynthesisErrorEventInit): SpeechSynthesisErrorEvent;
    isInstance(obj): obj is SpeechSynthesisErrorEvent;
};

/**
 * This Web Speech API interface contains information about the current state of SpeechSynthesisUtterance objects that have been processed in the speech service.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent)
 */
interface SpeechSynthesisEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/charIndex) */
    readonly charIndex: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/charLength) */
    readonly charLength: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/elapsedTime) */
    readonly elapsedTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/name) */
    readonly name: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisEvent/utterance) */
    readonly utterance: SpeechSynthesisUtterance;
}

declare var SpeechSynthesisEvent: {
    prototype: SpeechSynthesisEvent;
    new(type: string, eventInitDict: SpeechSynthesisEventInit): SpeechSynthesisEvent;
    isInstance(obj): obj is SpeechSynthesisEvent;
};

interface SpeechSynthesisGetter {
    readonly speechSynthesis: SpeechSynthesis;
}

interface SpeechSynthesisUtteranceEventMap {
    "boundary": Event;
    "end": Event;
    "error": ErrorEvent;
    "mark": Event;
    "pause": Event;
    "resume": Event;
    "start": Event;
}

/**
 * This Web Speech API interface represents a speech request. It contains the content the speech service should read and information about how to read it (e.g. language, pitch and volume.)
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance)
 */
interface SpeechSynthesisUtterance extends EventTarget {
    readonly chosenVoiceURI: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/lang) */
    lang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/boundary_event) */
    onboundary: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/end_event) */
    onend: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/mark_event) */
    onmark: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/pause_event) */
    onpause: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/resume_event) */
    onresume: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/start_event) */
    onstart: ((this: SpeechSynthesisUtterance, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/pitch) */
    pitch: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/rate) */
    rate: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/text) */
    text: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/voice) */
    voice: SpeechSynthesisVoice | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisUtterance/volume) */
    volume: number;
    addEventListener<K extends keyof SpeechSynthesisUtteranceEventMap>(type: K, listener: (this: SpeechSynthesisUtterance, ev: SpeechSynthesisUtteranceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof SpeechSynthesisUtteranceEventMap>(type: K, listener: (this: SpeechSynthesisUtterance, ev: SpeechSynthesisUtteranceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var SpeechSynthesisUtterance: {
    prototype: SpeechSynthesisUtterance;
    new(): SpeechSynthesisUtterance;
    new(text: string): SpeechSynthesisUtterance;
    isInstance(obj): obj is SpeechSynthesisUtterance;
};

/**
 * This Web Speech API interface represents a voice that the system supports. Every SpeechSynthesisVoice has its own relative speech service including information about language, name and URI.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice)
 */
interface SpeechSynthesisVoice {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice/default) */
    readonly default: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice/lang) */
    readonly lang: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice/localService) */
    readonly localService: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SpeechSynthesisVoice/voiceURI) */
    readonly voiceURI: string;
}

declare var SpeechSynthesisVoice: {
    prototype: SpeechSynthesisVoice;
    new(): SpeechSynthesisVoice;
    isInstance(obj): obj is SpeechSynthesisVoice;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StaticRange) */
interface StaticRange extends AbstractRange {
}

declare var StaticRange: {
    prototype: StaticRange;
    new(init: StaticRangeInit): StaticRange;
    isInstance(obj): obj is StaticRange;
};

/**
 * The pan property takes a unitless value between -1 (full left pan) and 1 (full right pan). This interface was introduced as a much simpler way to apply a simple panning effect than having to use a full PannerNode.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StereoPannerNode)
 */
interface StereoPannerNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StereoPannerNode/pan) */
    readonly pan: AudioParam;
}

declare var StereoPannerNode: {
    prototype: StereoPannerNode;
    new(context: BaseAudioContext, options?: StereoPannerOptions): StereoPannerNode;
    isInstance(obj): obj is StereoPannerNode;
};

/**
 * This Web Storage API interface provides access to a particular domain's session or local storage. It allows, for example, the addition, modification, or deletion of stored data items.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage)
 */
interface Storage {
    readonly hasSnapshot: boolean;
    readonly isSessionOnly: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/length) */
    readonly length: number;
    readonly snapshotUsage: number;
    beginExplicitSnapshot(): void;
    checkpointExplicitSnapshot(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/clear) */
    clear(): void;
    close(): void;
    endExplicitSnapshot(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/getItem) */
    getItem(key: string): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/key) */
    key(index: number): string | null;
    open(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/removeItem) */
    removeItem(key: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Storage/setItem) */
    setItem(key: string, value: string): void;
}

declare var Storage: {
    prototype: Storage;
    new(): Storage;
    isInstance(obj): obj is Storage;
};

/**
 * A StorageEvent is sent to a window when a storage area it has access to is changed within the context of another document.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent)
 */
interface StorageEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/key) */
    readonly key: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/newValue) */
    readonly newValue: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/oldValue) */
    readonly oldValue: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/storageArea) */
    readonly storageArea: Storage | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/url) */
    readonly url: string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageEvent/initStorageEvent)
     */
    initStorageEvent(type: string, canBubble?: boolean, cancelable?: boolean, key?: string | null, oldValue?: string | null, newValue?: string | null, url?: string | null, storageArea?: Storage | null): void;
}

declare var StorageEvent: {
    prototype: StorageEvent;
    new(type: string, eventInitDict?: StorageEventInit): StorageEvent;
    isInstance(obj): obj is StorageEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageManager)
 */
interface StorageManager {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageManager/estimate) */
    estimate(): Promise<StorageEstimate>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageManager/getDirectory) */
    getDirectory(): Promise<FileSystemDirectoryHandle>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageManager/persist) */
    persist(): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StorageManager/persisted) */
    persisted(): Promise<boolean>;
    shutdown(): void;
}

declare var StorageManager: {
    prototype: StorageManager;
    new(): StorageManager;
    isInstance(obj): obj is StorageManager;
};

interface StreamFilterEventMap {
    "data": Event;
    "error": ErrorEvent;
    "start": Event;
    "stop": Event;
}

interface StreamFilter extends EventTarget {
    "error": ErrorEvent;
    ondata: ((this: StreamFilter, ev: Event) => any) | null;
    onerror: OnErrorEventHandler;
    onstart: ((this: StreamFilter, ev: Event) => any) | null;
    onstop: ((this: StreamFilter, ev: Event) => any) | null;
    readonly status: StreamFilterStatus;
    close(): void;
    disconnect(): void;
    resume(): void;
    suspend(): void;
    write(data: ArrayBuffer | Uint8Array): void;
    addEventListener<K extends keyof StreamFilterEventMap>(type: K, listener: (this: StreamFilter, ev: StreamFilterEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof StreamFilterEventMap>(type: K, listener: (this: StreamFilter, ev: StreamFilterEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var StreamFilter: {
    prototype: StreamFilter;
    new(): StreamFilter;
    create(requestId: number, addonId: string): StreamFilter;
    isInstance(obj): obj is StreamFilter;
};

interface StreamFilterDataEvent extends Event {
    readonly data: ArrayBuffer;
}

declare var StreamFilterDataEvent: {
    prototype: StreamFilterDataEvent;
    new(type: string, eventInitDict?: StreamFilterDataEventInit): StreamFilterDataEvent;
    isInstance(obj): obj is StreamFilterDataEvent;
};

interface StructuredCloneHolder {
    deserialize(global: any, keepData?: boolean): any;
}

declare var StructuredCloneHolder: {
    prototype: StructuredCloneHolder;
    new(name: UTF8String, anonymizedName: UTF8String | null, data: any, global?: any): StructuredCloneHolder;
    isInstance(obj): obj is StructuredCloneHolder;
};

interface StructuredCloneTester {
    readonly deserializable: boolean;
    readonly serializable: boolean;
}

declare var StructuredCloneTester: {
    prototype: StructuredCloneTester;
    new(serializable: boolean, deserializable: boolean): StructuredCloneTester;
    isInstance(obj): obj is StructuredCloneTester;
};

/**
 * A single style sheet. CSS style sheets will further implement the more specialized CSSStyleSheet interface.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet)
 */
interface StyleSheet {
    readonly associatedDocument: Document | null;
    readonly constructed: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/disabled) */
    disabled: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/href) */
    readonly href: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/media) */
    readonly media: MediaList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/ownerNode) */
    readonly ownerNode: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/parentStyleSheet) */
    readonly parentStyleSheet: StyleSheet | null;
    readonly sourceMapURL: UTF8String;
    readonly sourceURL: UTF8String;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/title) */
    readonly title: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheet/type) */
    readonly type: string;
}

declare var StyleSheet: {
    prototype: StyleSheet;
    new(): StyleSheet;
    isInstance(obj): obj is StyleSheet;
};

interface StyleSheetApplicableStateChangeEvent extends Event {
    readonly applicable: boolean;
    readonly stylesheet: CSSStyleSheet | null;
}

declare var StyleSheetApplicableStateChangeEvent: {
    prototype: StyleSheetApplicableStateChangeEvent;
    new(type: string, eventInitDict?: StyleSheetApplicableStateChangeEventInit): StyleSheetApplicableStateChangeEvent;
    isInstance(obj): obj is StyleSheetApplicableStateChangeEvent;
};

/**
 * A list of StyleSheet.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList)
 */
interface StyleSheetList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/StyleSheetList/item) */
    item(index: number): CSSStyleSheet | null;
    [index: number]: CSSStyleSheet;
}

declare var StyleSheetList: {
    prototype: StyleSheetList;
    new(): StyleSheetList;
    isInstance(obj): obj is StyleSheetList;
};

interface StyleSheetRemovedEvent extends Event {
    readonly stylesheet: CSSStyleSheet | null;
}

declare var StyleSheetRemovedEvent: {
    prototype: StyleSheetRemovedEvent;
    new(type: string, eventInitDict?: StyleSheetRemovedEventInit): StyleSheetRemovedEvent;
    isInstance(obj): obj is StyleSheetRemovedEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubmitEvent) */
interface SubmitEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubmitEvent/submitter) */
    readonly submitter: HTMLElement | null;
}

declare var SubmitEvent: {
    prototype: SubmitEvent;
    new(type: string, eventInitDict?: SubmitEventInit): SubmitEvent;
    isInstance(obj): obj is SubmitEvent;
};

/**
 * This Web Crypto API interface provides a number of low-level cryptographic functions. It is accessed via the Crypto.subtle properties available in a window context (via Window.crypto).
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto)
 */
interface SubtleCrypto {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/decrypt) */
    decrypt(algorithm: AlgorithmIdentifier, key: CryptoKey, data: BufferSource): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveBits) */
    deriveBits(algorithm: AlgorithmIdentifier, baseKey: CryptoKey, length: number): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/deriveKey) */
    deriveKey(algorithm: AlgorithmIdentifier, baseKey: CryptoKey, derivedKeyType: AlgorithmIdentifier, extractable: boolean, keyUsages: KeyUsage[]): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/digest) */
    digest(algorithm: AlgorithmIdentifier, data: BufferSource): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/encrypt) */
    encrypt(algorithm: AlgorithmIdentifier, key: CryptoKey, data: BufferSource): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/exportKey) */
    exportKey(format: KeyFormat, key: CryptoKey): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/generateKey) */
    generateKey(algorithm: AlgorithmIdentifier, extractable: boolean, keyUsages: KeyUsage[]): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/importKey) */
    importKey(format: KeyFormat, keyData: any, algorithm: AlgorithmIdentifier, extractable: boolean, keyUsages: KeyUsage[]): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/sign) */
    sign(algorithm: AlgorithmIdentifier, key: CryptoKey, data: BufferSource): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/unwrapKey) */
    unwrapKey(format: KeyFormat, wrappedKey: BufferSource, unwrappingKey: CryptoKey, unwrapAlgorithm: AlgorithmIdentifier, unwrappedKeyAlgorithm: AlgorithmIdentifier, extractable: boolean, keyUsages: KeyUsage[]): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/verify) */
    verify(algorithm: AlgorithmIdentifier, key: CryptoKey, signature: BufferSource, data: BufferSource): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/SubtleCrypto/wrapKey) */
    wrapKey(format: KeyFormat, key: CryptoKey, wrappingKey: CryptoKey, wrapAlgorithm: AlgorithmIdentifier): Promise<any>;
}

declare var SubtleCrypto: {
    prototype: SubtleCrypto;
    new(): SubtleCrypto;
    isInstance(obj): obj is SubtleCrypto;
};

interface SyncMessageSender extends MessageSender, SyncMessageSenderMixin {
}

declare var SyncMessageSender: {
    prototype: SyncMessageSender;
    new(): SyncMessageSender;
    isInstance(obj): obj is SyncMessageSender;
};

interface SyncMessageSenderMixin {
    sendSyncMessage(messageName?: string | null, obj?: any): any[];
}

interface SyncReadFile {
    readonly size: number;
    close(): void;
    readBytesInto(dest: Uint8Array, offset: number): void;
}

declare var SyncReadFile: {
    prototype: SyncReadFile;
    new(): SyncReadFile;
    isInstance(obj): obj is SyncReadFile;
};

interface TCPServerSocketEventMap {
    "connect": Event;
    "error": ErrorEvent;
}

interface TCPServerSocket extends EventTarget {
    readonly localPort: number;
    onconnect: ((this: TCPServerSocket, ev: Event) => any) | null;
    onerror: OnErrorEventHandler;
    close(): void;
    addEventListener<K extends keyof TCPServerSocketEventMap>(type: K, listener: (this: TCPServerSocket, ev: TCPServerSocketEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TCPServerSocketEventMap>(type: K, listener: (this: TCPServerSocket, ev: TCPServerSocketEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TCPServerSocket: {
    prototype: TCPServerSocket;
    new(port: number, options?: ServerSocketOptions, backlog?: number): TCPServerSocket;
    isInstance(obj): obj is TCPServerSocket;
};

interface TCPServerSocketEvent extends Event {
    readonly socket: TCPSocket;
}

declare var TCPServerSocketEvent: {
    prototype: TCPServerSocketEvent;
    new(type: string, eventInitDict?: TCPServerSocketEventInit): TCPServerSocketEvent;
    isInstance(obj): obj is TCPServerSocketEvent;
};

interface TCPSocketEventMap {
    "close": Event;
    "data": Event;
    "drain": Event;
    "error": ErrorEvent;
    "open": Event;
}

interface TCPSocket extends EventTarget {
    readonly binaryType: TCPSocketBinaryType;
    readonly bufferedAmount: number;
    readonly host: string;
    onclose: ((this: TCPSocket, ev: Event) => any) | null;
    ondata: ((this: TCPSocket, ev: Event) => any) | null;
    ondrain: ((this: TCPSocket, ev: Event) => any) | null;
    onerror: OnErrorEventHandler;
    onopen: ((this: TCPSocket, ev: Event) => any) | null;
    readonly port: number;
    readonly readyState: TCPReadyState;
    readonly ssl: boolean;
    readonly transport: nsISocketTransport | null;
    close(): void;
    closeImmediately(): void;
    resume(): void;
    send(data: string): boolean;
    send(data: ArrayBuffer, byteOffset?: number, byteLength?: number): boolean;
    suspend(): void;
    upgradeToSecure(): void;
    addEventListener<K extends keyof TCPSocketEventMap>(type: K, listener: (this: TCPSocket, ev: TCPSocketEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TCPSocketEventMap>(type: K, listener: (this: TCPSocket, ev: TCPSocketEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TCPSocket: {
    prototype: TCPSocket;
    new(host: string, port: number, options?: SocketOptions): TCPSocket;
    isInstance(obj): obj is TCPSocket;
};

interface TCPSocketErrorEvent extends Event {
    readonly errorCode: number;
    readonly message: string;
    readonly name: string;
}

declare var TCPSocketErrorEvent: {
    prototype: TCPSocketErrorEvent;
    new(type: string, eventInitDict?: TCPSocketErrorEventInit): TCPSocketErrorEvent;
    isInstance(obj): obj is TCPSocketErrorEvent;
};

interface TCPSocketEvent extends Event {
    readonly data: any;
}

declare var TCPSocketEvent: {
    prototype: TCPSocketEvent;
    new(type: string, eventInitDict?: TCPSocketEventInit): TCPSocketEvent;
    isInstance(obj): obj is TCPSocketEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskController) */
interface TaskController extends AbortController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskController/setPriority) */
    setPriority(priority: TaskPriority): void;
}

declare var TaskController: {
    prototype: TaskController;
    new(init?: TaskControllerInit): TaskController;
    isInstance(obj): obj is TaskController;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskPriorityChangeEvent) */
interface TaskPriorityChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskPriorityChangeEvent/previousPriority) */
    readonly previousPriority: TaskPriority;
}

declare var TaskPriorityChangeEvent: {
    prototype: TaskPriorityChangeEvent;
    new(type: string, priorityChangeEventInitDict: TaskPriorityChangeEventInit): TaskPriorityChangeEvent;
    isInstance(obj): obj is TaskPriorityChangeEvent;
};

interface TaskSignalEventMap extends AbortSignalEventMap {
    "prioritychange": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskSignal) */
interface TaskSignal extends AbortSignal {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskSignal/prioritychange_event) */
    onprioritychange: ((this: TaskSignal, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TaskSignal/priority) */
    readonly priority: TaskPriority;
    addEventListener<K extends keyof TaskSignalEventMap>(type: K, listener: (this: TaskSignal, ev: TaskSignalEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TaskSignalEventMap>(type: K, listener: (this: TaskSignal, ev: TaskSignalEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TaskSignal: {
    prototype: TaskSignal;
    new(): TaskSignal;
    isInstance(obj): obj is TaskSignal;
};

interface TestFunctions {
    allowSharedArrayBuffer: ArrayBuffer;
    allowSharedArrayBufferView: ArrayBufferView;
    arrayBuffer: ArrayBuffer;
    arrayBufferView: ArrayBufferView;
    clampedNullableOctet: number | null;
    enforcedNullableOctet: number | null;
    readonly one: number;
    sequenceOfAllowSharedArrayBuffer: ArrayBuffer[];
    sequenceOfAllowSharedArrayBufferView: ArrayBufferView[];
    sequenceOfArrayBuffer: ArrayBuffer[];
    sequenceOfArrayBufferView: ArrayBufferView[];
    readonly two: number;
    readonly wrapperCachedNonISupportsObject: WrapperCachedNonISupportsTestInterface;
    getLongLiteralString(): string;
    getMediumLiteralString(): string;
    getShortLiteralString(): string;
    getStringDataAsAString(): string;
    getStringDataAsAString(length: number): string;
    getStringDataAsDOMString(length?: number): string;
    getStringType(str: string): StringType;
    getStringbufferString(input: string): string;
    setStringData(arg: string): void;
    staticAndNonStaticOverload(): boolean;
    staticAndNonStaticOverload(foo?: number): boolean;
    stringbufferMatchesStored(str: string): boolean;
    testAllowShared(buffer: ArrayBufferView): void;
    testAllowShared(buffer: ArrayBuffer): void;
    testDictWithAllowShared(buffer?: DictWithAllowSharedBufferSource): void;
    testNotAllowShared(buffer: ArrayBufferView): void;
    testNotAllowShared(buffer: ArrayBuffer): void;
    testNotAllowShared(buffer: string): void;
    testThrowNsresult(): void;
    testThrowNsresultFromNative(): void;
    testUnionOfAllowSharedBuffferSource(foo: ArrayBuffer | ArrayBufferView): void;
    testUnionOfBuffferSource(foo: ArrayBuffer | ArrayBufferView | string): void;
    toJSON(): any;
}

declare var TestFunctions: {
    prototype: TestFunctions;
    new(): TestFunctions;
    passThroughCallbackPromise(callback: PromiseReturner): Promise<any>;
    passThroughPromise(arg: any): Promise<any>;
    throwToRejectPromise(): Promise<any>;
    throwUncatchableException(): void;
    isInstance(obj): obj is TestFunctions;
};

interface TestInterfaceAsyncIterableDouble {
}

declare var TestInterfaceAsyncIterableDouble: {
    prototype: TestInterfaceAsyncIterableDouble;
    new(): TestInterfaceAsyncIterableDouble;
    isInstance(obj): obj is TestInterfaceAsyncIterableDouble;
};

interface TestInterfaceAsyncIterableDoubleUnion {
}

declare var TestInterfaceAsyncIterableDoubleUnion: {
    prototype: TestInterfaceAsyncIterableDoubleUnion;
    new(): TestInterfaceAsyncIterableDoubleUnion;
    isInstance(obj): obj is TestInterfaceAsyncIterableDoubleUnion;
};

interface TestInterfaceAsyncIterableSingle {
}

declare var TestInterfaceAsyncIterableSingle: {
    prototype: TestInterfaceAsyncIterableSingle;
    new(options?: TestInterfaceAsyncIterableSingleOptions): TestInterfaceAsyncIterableSingle;
    isInstance(obj): obj is TestInterfaceAsyncIterableSingle;
};

interface TestInterfaceAsyncIterableSingleWithArgs {
    readonly returnCallCount: number;
    readonly returnLastCalledWith: any;
}

declare var TestInterfaceAsyncIterableSingleWithArgs: {
    prototype: TestInterfaceAsyncIterableSingleWithArgs;
    new(): TestInterfaceAsyncIterableSingleWithArgs;
    isInstance(obj): obj is TestInterfaceAsyncIterableSingleWithArgs;
};

interface TestInterfaceIterableDouble {
    forEach(callbackfn: (value: string, key: string, parent: TestInterfaceIterableDouble) => void, thisArg?: any): void;
}

declare var TestInterfaceIterableDouble: {
    prototype: TestInterfaceIterableDouble;
    new(): TestInterfaceIterableDouble;
    isInstance(obj): obj is TestInterfaceIterableDouble;
};

interface TestInterfaceIterableDoubleUnion {
    forEach(callbackfn: (value: string | number, key: string, parent: TestInterfaceIterableDoubleUnion) => void, thisArg?: any): void;
}

declare var TestInterfaceIterableDoubleUnion: {
    prototype: TestInterfaceIterableDoubleUnion;
    new(): TestInterfaceIterableDoubleUnion;
    isInstance(obj): obj is TestInterfaceIterableDoubleUnion;
};

interface TestInterfaceIterableSingle {
    readonly length: number;
    forEach(callbackfn: (value: number, key: number, parent: TestInterfaceIterableSingle) => void, thisArg?: any): void;
    [index: number]: number;
}

declare var TestInterfaceIterableSingle: {
    prototype: TestInterfaceIterableSingle;
    new(): TestInterfaceIterableSingle;
    isInstance(obj): obj is TestInterfaceIterableSingle;
};

interface TestInterfaceJSEventMap {
    "something": Event;
}

interface TestInterfaceJS extends EventTarget {
    readonly anyArg: any;
    anyAttr: any;
    readonly objectArg: any;
    objectAttr: any;
    onsomething: ((this: TestInterfaceJS, ev: Event) => any) | null;
    anySequenceLength(seq: any[]): number;
    convertSVS(svs: string): string;
    getCallerPrincipal(): string;
    getDictionaryArg(): TestInterfaceJSDictionary;
    getDictionaryAttr(): TestInterfaceJSDictionary;
    objectSequenceLength(seq: any[]): number;
    pingPongAny(arg: any): any;
    pingPongDictionary(dict?: TestInterfaceJSDictionary): TestInterfaceJSDictionary;
    pingPongDictionaryOrLong(dictOrLong?: TestInterfaceJSUnionableDictionary | number): number;
    pingPongNullableUnion(something: TestInterfaceJS | number | null): TestInterfaceJS | number | null;
    pingPongObject(obj: any): any;
    pingPongObjectOrString(objOrString: any): any;
    pingPongRecord(rec: Record<string, any>): string;
    pingPongUnion(something: TestInterfaceJS | number): TestInterfaceJS | number;
    pingPongUnionContainingNull(something: TestInterfaceJS | string): string | TestInterfaceJS;
    returnBadUnion(): Location | TestInterfaceJS;
    setDictionaryAttr(dict?: TestInterfaceJSDictionary): void;
    testPromiseWithDOMExceptionThrowingPromiseInit(): Promise<void>;
    testPromiseWithDOMExceptionThrowingThenFunction(): Promise<void>;
    testPromiseWithDOMExceptionThrowingThenable(): Promise<void>;
    testPromiseWithThrowingChromePromiseInit(): Promise<void>;
    testPromiseWithThrowingChromeThenFunction(): Promise<void>;
    testPromiseWithThrowingChromeThenable(): Promise<void>;
    testPromiseWithThrowingContentPromiseInit(func: Function): Promise<void>;
    testPromiseWithThrowingContentThenFunction(func: AnyCallback): Promise<void>;
    testPromiseWithThrowingContentThenable(thenable: any): Promise<void>;
    testSequenceOverload(arg: string[]): void;
    testSequenceOverload(arg: string): void;
    testSequenceUnion(arg: string[] | string): void;
    testThrowCallbackError(callback: Function): void;
    testThrowDOMException(): void;
    testThrowError(): void;
    testThrowSelfHosted(): void;
    testThrowTypeError(): void;
    testThrowXraySelfHosted(): void;
    addEventListener<K extends keyof TestInterfaceJSEventMap>(type: K, listener: (this: TestInterfaceJS, ev: TestInterfaceJSEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TestInterfaceJSEventMap>(type: K, listener: (this: TestInterfaceJS, ev: TestInterfaceJSEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TestInterfaceJS: {
    prototype: TestInterfaceJS;
    new(anyArg?: any, objectArg?: any, dictionaryArg?: TestInterfaceJSDictionary): TestInterfaceJS;
    isInstance(obj): obj is TestInterfaceJS;
};

interface TestInterfaceLength {
}

declare var TestInterfaceLength: {
    prototype: TestInterfaceLength;
    new(arg: boolean): TestInterfaceLength;
    isInstance(obj): obj is TestInterfaceLength;
};

interface TestInterfaceMaplike {
    clearInternal(): void;
    deleteInternal(aKey: string): boolean;
    getInternal(aKey: string): number;
    hasInternal(aKey: string): boolean;
    setInternal(aKey: string, aValue: number): void;
    forEach(callbackfn: (value: number, key: string, parent: TestInterfaceMaplike) => void, thisArg?: any): void;
}

declare var TestInterfaceMaplike: {
    prototype: TestInterfaceMaplike;
    new(): TestInterfaceMaplike;
    isInstance(obj): obj is TestInterfaceMaplike;
};

interface TestInterfaceMaplikeJSObject {
    clearInternal(): void;
    deleteInternal(aKey: string): boolean;
    getInternal(aKey: string): any;
    hasInternal(aKey: string): boolean;
    setInternal(aKey: string, aObject: any): void;
    forEach(callbackfn: (value: any, key: string, parent: TestInterfaceMaplikeJSObject) => void, thisArg?: any): void;
}

declare var TestInterfaceMaplikeJSObject: {
    prototype: TestInterfaceMaplikeJSObject;
    new(): TestInterfaceMaplikeJSObject;
    isInstance(obj): obj is TestInterfaceMaplikeJSObject;
};

interface TestInterfaceMaplikeObject {
    clearInternal(): void;
    deleteInternal(aKey: string): boolean;
    getInternal(aKey: string): TestInterfaceMaplike | null;
    hasInternal(aKey: string): boolean;
    setInternal(aKey: string): void;
    forEach(callbackfn: (value: TestInterfaceMaplike, key: string, parent: TestInterfaceMaplikeObject) => void, thisArg?: any): void;
}

declare var TestInterfaceMaplikeObject: {
    prototype: TestInterfaceMaplikeObject;
    new(): TestInterfaceMaplikeObject;
    isInstance(obj): obj is TestInterfaceMaplikeObject;
};

interface TestInterfaceObservableArray {
    observableArrayBoolean: boolean[];
    observableArrayInterface: TestInterfaceObservableArray[];
    observableArrayObject: any[];
    booleanAppendElementInternal(value: boolean): void;
    booleanElementAtInternal(index: number): boolean;
    booleanLengthInternal(): number;
    booleanRemoveLastElementInternal(): void;
    booleanReplaceElementAtInternal(index: number, value: boolean): void;
    interfaceAppendElementInternal(value: TestInterfaceObservableArray): void;
    interfaceElementAtInternal(index: number): TestInterfaceObservableArray;
    interfaceLengthInternal(): number;
    interfaceRemoveLastElementInternal(): void;
    interfaceReplaceElementAtInternal(index: number, value: TestInterfaceObservableArray): void;
    objectAppendElementInternal(value: any): void;
    objectElementAtInternal(index: number): any;
    objectLengthInternal(): number;
    objectRemoveLastElementInternal(): void;
    objectReplaceElementAtInternal(index: number, value: any): void;
}

declare var TestInterfaceObservableArray: {
    prototype: TestInterfaceObservableArray;
    new(callbacks?: ObservableArrayCallbacks): TestInterfaceObservableArray;
    isInstance(obj): obj is TestInterfaceObservableArray;
};

interface TestInterfaceSetlike {
    forEach(callbackfn: (value: string, key: string, parent: TestInterfaceSetlike) => void, thisArg?: any): void;
}

declare var TestInterfaceSetlike: {
    prototype: TestInterfaceSetlike;
    new(): TestInterfaceSetlike;
    isInstance(obj): obj is TestInterfaceSetlike;
};

interface TestInterfaceSetlikeNode {
    forEach(callbackfn: (value: Node, key: Node, parent: TestInterfaceSetlikeNode) => void, thisArg?: any): void;
}

declare var TestInterfaceSetlikeNode: {
    prototype: TestInterfaceSetlikeNode;
    new(): TestInterfaceSetlikeNode;
    isInstance(obj): obj is TestInterfaceSetlikeNode;
};

interface TestTrialInterface {
}

declare var TestTrialInterface: {
    prototype: TestTrialInterface;
    new(): TestTrialInterface;
    isInstance(obj): obj is TestTrialInterface;
};

interface TestingDeprecatedInterface {
    readonly deprecatedAttribute: boolean;
    deprecatedMethod(): void;
}

declare var TestingDeprecatedInterface: {
    prototype: TestingDeprecatedInterface;
    new(): TestingDeprecatedInterface;
    isInstance(obj): obj is TestingDeprecatedInterface;
};

/**
 * The textual content of Element or Attr. If an element has no markup within its content, it has a single child implementing Text that contains the element's text. However, if the element contains markup, it is parsed into information items and Text nodes that form its children.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Text)
 */
interface Text extends CharacterData, GeometryUtils {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Text/assignedSlot) */
    readonly assignedSlot: HTMLSlotElement | null;
    readonly openOrClosedAssignedSlot: HTMLSlotElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Text/wholeText) */
    readonly wholeText: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Text/splitText) */
    splitText(offset: number): Text;
}

declare var Text: {
    prototype: Text;
    new(data?: string): Text;
    isInstance(obj): obj is Text;
};

interface TextClause {
    readonly endOffset: number;
    readonly isCaret: boolean;
    readonly isTargetClause: boolean;
    readonly startOffset: number;
}

declare var TextClause: {
    prototype: TextClause;
    new(): TextClause;
    isInstance(obj): obj is TextClause;
};

/**
 * A decoder for a specific method, that is a specific character encoding, like utf-8, iso-8859-2, koi8, cp1261, gbk, etc. A decoder takes a stream of bytes as input and emits a stream of code points. For a more scalable, non-native library, see StringView – a C-like representation of strings based on typed arrays.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoder)
 */
interface TextDecoder extends TextDecoderCommon {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoder/decode) */
    decode(input?: BufferSource, options?: TextDecodeOptions): string;
}

declare var TextDecoder: {
    prototype: TextDecoder;
    new(label?: string, options?: TextDecoderOptions): TextDecoder;
    isInstance(obj): obj is TextDecoder;
};

interface TextDecoderCommon {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoder/encoding) */
    readonly encoding: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoder/fatal) */
    readonly fatal: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoder/ignoreBOM) */
    readonly ignoreBOM: boolean;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextDecoderStream) */
interface TextDecoderStream extends GenericTransformStream, TextDecoderCommon {
}

declare var TextDecoderStream: {
    prototype: TextDecoderStream;
    new(label?: string, options?: TextDecoderOptions): TextDecoderStream;
    isInstance(obj): obj is TextDecoderStream;
};

/**
 * TextEncoder takes a stream of code points as input and emits a stream of bytes. For a more scalable, non-native library, see StringView – a C-like representation of strings based on typed arrays.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextEncoder)
 */
interface TextEncoder extends TextEncoderCommon {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextEncoder/encode) */
    encode(input?: UTF8String): Uint8Array;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextEncoder/encodeInto) */
    encodeInto(source: JSString, destination: Uint8Array): TextEncoderEncodeIntoResult;
}

declare var TextEncoder: {
    prototype: TextEncoder;
    new(): TextEncoder;
    isInstance(obj): obj is TextEncoder;
};

interface TextEncoderCommon {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextEncoder/encoding) */
    readonly encoding: string;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextEncoderStream) */
interface TextEncoderStream extends GenericTransformStream, TextEncoderCommon {
}

declare var TextEncoderStream: {
    prototype: TextEncoderStream;
    new(): TextEncoderStream;
    isInstance(obj): obj is TextEncoderStream;
};

/**
 * The dimensions of a piece of text in the canvas, as created by the CanvasRenderingContext2D.measureText() method.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics)
 */
interface TextMetrics {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxAscent) */
    readonly actualBoundingBoxAscent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxDescent) */
    readonly actualBoundingBoxDescent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxLeft) */
    readonly actualBoundingBoxLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/actualBoundingBoxRight) */
    readonly actualBoundingBoxRight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/alphabeticBaseline) */
    readonly alphabeticBaseline: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/emHeightAscent) */
    readonly emHeightAscent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/emHeightDescent) */
    readonly emHeightDescent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/fontBoundingBoxAscent) */
    readonly fontBoundingBoxAscent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/fontBoundingBoxDescent) */
    readonly fontBoundingBoxDescent: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/hangingBaseline) */
    readonly hangingBaseline: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/ideographicBaseline) */
    readonly ideographicBaseline: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextMetrics/width) */
    readonly width: number;
}

declare var TextMetrics: {
    prototype: TextMetrics;
    new(): TextMetrics;
    isInstance(obj): obj is TextMetrics;
};

interface TextTrackEventMap {
    "cuechange": Event;
}

/**
 * This interface also inherits properties from EventTarget.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack)
 */
interface TextTrack extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/activeCues) */
    readonly activeCues: TextTrackCueList | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/cues) */
    readonly cues: TextTrackCueList | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/inBandMetadataTrackDispatchType) */
    readonly inBandMetadataTrackDispatchType: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/kind) */
    readonly kind: TextTrackKind;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/language) */
    readonly language: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/mode) */
    mode: TextTrackMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/cuechange_event) */
    oncuechange: ((this: TextTrack, ev: Event) => any) | null;
    readonly textTrackList: TextTrackList | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/addCue) */
    addCue(cue: VTTCue): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrack/removeCue) */
    removeCue(cue: VTTCue): void;
    addEventListener<K extends keyof TextTrackEventMap>(type: K, listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TextTrackEventMap>(type: K, listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TextTrack: {
    prototype: TextTrack;
    new(): TextTrack;
    isInstance(obj): obj is TextTrack;
};

interface TextTrackCueEventMap {
    "enter": Event;
    "exit": Event;
}

/**
 * TextTrackCues represent a string of text that will be displayed for some duration of time on a TextTrack. This includes the start and end times that the cue will be displayed. A TextTrackCue cannot be used directly, instead one of the derived types (e.g. VTTCue) must be used.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue)
 */
interface TextTrackCue extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/endTime) */
    endTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/id) */
    id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/enter_event) */
    onenter: ((this: TextTrackCue, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/exit_event) */
    onexit: ((this: TextTrackCue, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/pauseOnExit) */
    pauseOnExit: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/startTime) */
    startTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCue/track) */
    readonly track: TextTrack | null;
    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: TextTrackCue, ev: TextTrackCueEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var TextTrackCue: {
    prototype: TextTrackCue;
    new(): TextTrackCue;
    isInstance(obj): obj is TextTrackCue;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCueList) */
interface TextTrackCueList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCueList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackCueList/getCueById) */
    getCueById(id: string): VTTCue | null;
    [index: number]: VTTCue;
}

declare var TextTrackCueList: {
    prototype: TextTrackCueList;
    new(): TextTrackCueList;
    isInstance(obj): obj is TextTrackCueList;
};

interface TextTrackListEventMap {
    "addtrack": Event;
    "change": Event;
    "removetrack": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList) */
interface TextTrackList extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList/length) */
    readonly length: number;
    readonly mediaElement: HTMLMediaElement | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList/addtrack_event) */
    onaddtrack: ((this: TextTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList/change_event) */
    onchange: ((this: TextTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList/removetrack_event) */
    onremovetrack: ((this: TextTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TextTrackList/getTrackById) */
    getTrackById(id: string): TextTrack | null;
    addEventListener<K extends keyof TextTrackListEventMap>(type: K, listener: (this: TextTrackList, ev: TextTrackListEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TextTrackListEventMap>(type: K, listener: (this: TextTrackList, ev: TextTrackListEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: TextTrack;
}

declare var TextTrackList: {
    prototype: TextTrackList;
    new(): TextTrackList;
    isInstance(obj): obj is TextTrackList;
};

interface TimeEvent extends Event {
    readonly detail: number;
    readonly view: WindowProxy | null;
    initTimeEvent(aType: string, aView?: Window | null, aDetail?: number): void;
}

declare var TimeEvent: {
    prototype: TimeEvent;
    new(): TimeEvent;
    isInstance(obj): obj is TimeEvent;
};

/**
 * Used to represent a set of time ranges, primarily for the purpose of tracking which portions of media have been buffered when loading it for use by the <audio> and <video> elements.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TimeRanges)
 */
interface TimeRanges {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TimeRanges/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TimeRanges/end) */
    end(index: number): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TimeRanges/start) */
    start(index: number): number;
}

declare var TimeRanges: {
    prototype: TimeRanges;
    new(): TimeRanges;
    isInstance(obj): obj is TimeRanges;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ToggleEvent) */
interface ToggleEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ToggleEvent/newState) */
    readonly newState: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ToggleEvent/oldState) */
    readonly oldState: string;
}

declare var ToggleEvent: {
    prototype: ToggleEvent;
    new(type: string, eventInitDict?: ToggleEventInit): ToggleEvent;
    isInstance(obj): obj is ToggleEvent;
};

/**
 * A single contact point on a touch-sensitive device. The contact point is commonly a finger or stylus and the device may be a touchscreen or trackpad.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch)
 */
interface Touch {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/clientX) */
    readonly clientX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/clientY) */
    readonly clientY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/force) */
    readonly force: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/identifier) */
    readonly identifier: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/pageX) */
    readonly pageX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/pageY) */
    readonly pageY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/radiusX) */
    readonly radiusX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/radiusY) */
    readonly radiusY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/rotationAngle) */
    readonly rotationAngle: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/screenX) */
    readonly screenX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/screenY) */
    readonly screenY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Touch/target) */
    readonly target: EventTarget | null;
}

declare var Touch: {
    prototype: Touch;
    new(touchInitDict: TouchInit): Touch;
    isInstance(obj): obj is Touch;
};

/**
 * An event sent when the state of contacts with a touch-sensitive surface changes. This surface can be a touch screen or trackpad, for example. The event can describe one or more points of contact with the screen and includes support for detecting movement, addition and removal of contact points, and so forth.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent)
 */
interface TouchEvent extends UIEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/altKey) */
    readonly altKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/changedTouches) */
    readonly changedTouches: TouchList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/ctrlKey) */
    readonly ctrlKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/metaKey) */
    readonly metaKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/shiftKey) */
    readonly shiftKey: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/targetTouches) */
    readonly targetTouches: TouchList;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchEvent/touches) */
    readonly touches: TouchList;
    initTouchEvent(type: string, canBubble?: boolean, cancelable?: boolean, view?: Window | null, detail?: number, ctrlKey?: boolean, altKey?: boolean, shiftKey?: boolean, metaKey?: boolean, touches?: TouchList | null, targetTouches?: TouchList | null, changedTouches?: TouchList | null): void;
}

declare var TouchEvent: {
    prototype: TouchEvent;
    new(type: string, eventInitDict?: TouchEventInit): TouchEvent;
    isInstance(obj): obj is TouchEvent;
};

interface TouchEventHandlersEventMap {
    touchcancel: TouchEvent;
    touchend: TouchEvent;
    touchmove: TouchEvent;
    touchstart: TouchEvent;
}

interface TouchEventHandlers {
    ontouchcancel: ((this: TouchEventHandlers, ev: Event) => any) | null;
    ontouchend: ((this: TouchEventHandlers, ev: Event) => any) | null;
    ontouchmove: ((this: TouchEventHandlers, ev: Event) => any) | null;
    ontouchstart: ((this: TouchEventHandlers, ev: Event) => any) | null;
    addEventListener<K extends keyof TouchEventHandlersEventMap>(type: K, listener: (this: TouchEventHandlers, ev: TouchEventHandlersEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TouchEventHandlersEventMap>(type: K, listener: (this: TouchEventHandlers, ev: TouchEventHandlersEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

/**
 * A list of contact points on a touch surface. For example, if the user has three fingers on the touch surface (such as a screen or trackpad), the corresponding TouchList object would have one Touch object for each finger, for a total of three entries.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchList)
 */
interface TouchList {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TouchList/item) */
    item(index: number): Touch | null;
    [index: number]: Touch;
}

declare var TouchList: {
    prototype: TouchList;
    new(): TouchList;
    isInstance(obj): obj is TouchList;
};

/**
 * The TrackEvent interface, part of the HTML DOM specification, is used for events which represent changes to the set of available tracks on an HTML media element; these events are addtrack and removetrack.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TrackEvent)
 */
interface TrackEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TrackEvent/track) */
    readonly track: VideoTrack | AudioTrack | TextTrack | null;
}

declare var TrackEvent: {
    prototype: TrackEvent;
    new(type: string, eventInitDict?: TrackEventInit): TrackEvent;
    isInstance(obj): obj is TrackEvent;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStream) */
interface TransformStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStream/readable) */
    readonly readable: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStream/writable) */
    readonly writable: WritableStream;
}

declare var TransformStream: {
    prototype: TransformStream;
    new(transformer?: any, writableStrategy?: QueuingStrategy, readableStrategy?: QueuingStrategy): TransformStream;
    isInstance(obj): obj is TransformStream;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStreamDefaultController) */
interface TransformStreamDefaultController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStreamDefaultController/desiredSize) */
    readonly desiredSize: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStreamDefaultController/enqueue) */
    enqueue(chunk?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStreamDefaultController/error) */
    error(reason?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransformStreamDefaultController/terminate) */
    terminate(): void;
}

declare var TransformStreamDefaultController: {
    prototype: TransformStreamDefaultController;
    new(): TransformStreamDefaultController;
    isInstance(obj): obj is TransformStreamDefaultController;
};

/**
 * Events providing information related to transitions.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransitionEvent)
 */
interface TransitionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransitionEvent/elapsedTime) */
    readonly elapsedTime: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransitionEvent/propertyName) */
    readonly propertyName: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TransitionEvent/pseudoElement) */
    readonly pseudoElement: string;
}

declare var TransitionEvent: {
    prototype: TransitionEvent;
    new(type: string, eventInitDict?: TransitionEventInit): TransitionEvent;
    isInstance(obj): obj is TransitionEvent;
};

interface TreeColumn {
    readonly columns: TreeColumns | null;
    readonly cycler: boolean;
    readonly editable: boolean;
    readonly element: Element;
    readonly id: string;
    readonly index: number;
    readonly previousColumn: TreeColumn | null;
    readonly primary: boolean;
    readonly type: number;
    readonly width: number;
    readonly x: number;
    getNext(): TreeColumn | null;
    getPrevious(): TreeColumn | null;
    invalidate(): void;
    readonly TYPE_TEXT: 1;
    readonly TYPE_CHECKBOX: 2;
}

declare var TreeColumn: {
    prototype: TreeColumn;
    new(): TreeColumn;
    readonly TYPE_TEXT: 1;
    readonly TYPE_CHECKBOX: 2;
    isInstance(obj): obj is TreeColumn;
};

interface TreeColumns {
    readonly count: number;
    readonly length: number;
    readonly tree: XULTreeElement | null;
    getColumnAt(index: number): TreeColumn | null;
    getColumnFor(element: Element | null): TreeColumn | null;
    getFirstColumn(): TreeColumn | null;
    getKeyColumn(): TreeColumn | null;
    getLastColumn(): TreeColumn | null;
    getNamedColumn(name: string): TreeColumn | null;
    getPrimaryColumn(): TreeColumn | null;
    getSortedColumn(): TreeColumn | null;
    invalidateColumns(): void;
    [index: number]: TreeColumn;
}

declare var TreeColumns: {
    prototype: TreeColumns;
    new(): TreeColumns;
    isInstance(obj): obj is TreeColumns;
};

interface TreeContentView extends TreeView {
    getIndexOfItem(item: Element | null): number;
    getItemAtIndex(row: number): Element | null;
}

declare var TreeContentView: {
    prototype: TreeContentView;
    new(): TreeContentView;
    readonly DROP_BEFORE: -1;
    readonly DROP_ON: 0;
    readonly DROP_AFTER: 1;
    isInstance(obj): obj is TreeContentView;
};

interface TreeView {
    readonly rowCount: number;
    selection: nsITreeSelection | null;
    canDrop(row: number, orientation: number, dataTransfer: DataTransfer | null): boolean;
    cycleCell(row: number, column: TreeColumn): void;
    cycleHeader(column: TreeColumn): void;
    drop(row: number, orientation: number, dataTransfer: DataTransfer | null): void;
    getCellProperties(row: number, column: TreeColumn): string;
    getCellText(row: number, column: TreeColumn): string;
    getCellValue(row: number, column: TreeColumn): string;
    getColumnProperties(column: TreeColumn): string;
    getImageSrc(row: number, column: TreeColumn): string;
    getLevel(row: number): number;
    getParentIndex(row: number): number;
    getRowProperties(row: number): string;
    hasNextSibling(row: number, afterIndex: number): boolean;
    isContainer(row: number): boolean;
    isContainerEmpty(row: number): boolean;
    isContainerOpen(row: number): boolean;
    isEditable(row: number, column: TreeColumn): boolean;
    isSeparator(row: number): boolean;
    isSorted(): boolean;
    selectionChanged(): void;
    setCellText(row: number, column: TreeColumn, value: string): void;
    setCellValue(row: number, column: TreeColumn, value: string): void;
    setTree(tree: XULTreeElement | null): void;
    toggleOpenState(row: number): void;
    readonly DROP_BEFORE: -1;
    readonly DROP_ON: 0;
    readonly DROP_AFTER: 1;
}

/**
 * The nodes of a document subtree and a position within them.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker)
 */
interface TreeWalker {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/currentNode) */
    currentNode: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/filter) */
    readonly filter: NodeFilter | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/root) */
    readonly root: Node;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/whatToShow) */
    readonly whatToShow: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/firstChild) */
    firstChild(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/lastChild) */
    lastChild(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/nextNode) */
    nextNode(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/nextSibling) */
    nextSibling(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/parentNode) */
    parentNode(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/previousNode) */
    previousNode(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/TreeWalker/previousSibling) */
    previousSibling(): Node | null;
}

declare var TreeWalker: {
    prototype: TreeWalker;
    new(): TreeWalker;
    isInstance(obj): obj is TreeWalker;
};

interface UDPMessageEvent extends Event {
    readonly data: any;
    readonly remoteAddress: string;
    readonly remotePort: number;
}

declare var UDPMessageEvent: {
    prototype: UDPMessageEvent;
    new(type: string, eventInitDict?: UDPMessageEventInit): UDPMessageEvent;
    isInstance(obj): obj is UDPMessageEvent;
};

interface UDPSocketEventMap {
    "message": Event;
}

interface UDPSocket extends EventTarget {
    readonly addressReuse: boolean;
    readonly closed: Promise<undefined>;
    readonly localAddress: string | null;
    readonly localPort: number | null;
    readonly loopback: boolean;
    onmessage: ((this: UDPSocket, ev: Event) => any) | null;
    readonly opened: Promise<undefined>;
    readonly readyState: SocketReadyState;
    readonly remoteAddress: string | null;
    readonly remotePort: number | null;
    close(): Promise<void>;
    joinMulticastGroup(multicastGroupAddress: string): void;
    leaveMulticastGroup(multicastGroupAddress: string): void;
    send(data: string | Blob | ArrayBuffer | ArrayBufferView, remoteAddress?: string | null, remotePort?: number | null): boolean;
    addEventListener<K extends keyof UDPSocketEventMap>(type: K, listener: (this: UDPSocket, ev: UDPSocketEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof UDPSocketEventMap>(type: K, listener: (this: UDPSocket, ev: UDPSocketEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var UDPSocket: {
    prototype: UDPSocket;
    new(options?: UDPOptions): UDPSocket;
    isInstance(obj): obj is UDPSocket;
};

/**
 * Simple user interface events.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/UIEvent)
 */
interface UIEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/UIEvent/detail) */
    readonly detail: number;
    readonly layerX: number;
    readonly layerY: number;
    readonly rangeOffset: number;
    readonly rangeParent: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/UIEvent/view) */
    readonly view: WindowProxy | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/UIEvent/which)
     */
    readonly which: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/UIEvent/initUIEvent)
     */
    initUIEvent(aType: string, aCanBubble?: boolean, aCancelable?: boolean, aView?: Window | null, aDetail?: number): void;
    readonly SCROLL_PAGE_UP: -32768;
    readonly SCROLL_PAGE_DOWN: 32768;
}

declare var UIEvent: {
    prototype: UIEvent;
    new(type: string, eventInitDict?: UIEventInit): UIEvent;
    readonly SCROLL_PAGE_UP: -32768;
    readonly SCROLL_PAGE_DOWN: 32768;
    isInstance(obj): obj is UIEvent;
};

/**
 * The URL interface represents an object providing static methods used for creating object URLs.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL)
 */
interface URL {
    readonly URI: URI;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/hash) */
    hash: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/host) */
    host: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/hostname) */
    hostname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/href) */
    href: string;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/password) */
    password: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/pathname) */
    pathname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/port) */
    port: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/protocol) */
    protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/search) */
    search: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/searchParams) */
    readonly searchParams: URLSearchParams;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/username) */
    username: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/toJSON) */
    toJSON(): string;
}

declare var URL: {
    prototype: URL;
    new(url: string | URL, base?: string): URL;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/canParse_static) */
    canParse(url: string | URL, base?: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/createObjectURL_static) */
    createObjectURL(blob: Blob): string;
    createObjectURL(source: MediaSource): string;
    fromURI(uri: URI): URL;
    isValidObjectURL(url: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URL/revokeObjectURL_static) */
    revokeObjectURL(url: string): void;
    isInstance(obj): obj is URL;
};

type webkitURL = URL;
declare var webkitURL: typeof URL;

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams) */
interface URLSearchParams {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/size) */
    readonly size: number;
    /**
     * Appends a specified key/value pair as a new search parameter.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/append)
     */
    append(name: string, value: string): void;
    /**
     * Deletes the given search parameter, and its associated value, from the list of all search parameters.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/delete)
     */
    delete(name: string, value?: string): void;
    /**
     * Returns the first value associated to the given search parameter.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/get)
     */
    get(name: string): string | null;
    /**
     * Returns all the values association with a given search parameter.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/getAll)
     */
    getAll(name: string): string[];
    /**
     * Returns a Boolean indicating if such a search parameter exists.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/has)
     */
    has(name: string, value?: string): boolean;
    /**
     * Sets the value associated to a given search parameter to the given value. If there were several values, delete the others.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/set)
     */
    set(name: string, value: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/URLSearchParams/sort) */
    sort(): void;
    /** Returns a string containing a query string suitable for use in a URL. Does not include the question mark. */
    toString(): string;
    forEach(callbackfn: (value: string, key: string, parent: URLSearchParams) => void, thisArg?: any): void;
}

declare var URLSearchParams: {
    prototype: URLSearchParams;
    new(init?: string[][] | Record<string, string> | string): URLSearchParams;
    isInstance(obj): obj is URLSearchParams;
};

interface UniFFIPointer {
}

declare var UniFFIPointer: {
    prototype: UniFFIPointer;
    new(): UniFFIPointer;
    isInstance(obj): obj is UniFFIPointer;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/UserActivation) */
interface UserActivation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/UserActivation/hasBeenActive) */
    readonly hasBeenActive: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/UserActivation/hasBeenActive) */
    readonly isActive: boolean;
}

declare var UserActivation: {
    prototype: UserActivation;
    new(): UserActivation;
    isInstance(obj): obj is UserActivation;
};

interface UserProximityEvent extends Event {
    readonly near: boolean;
}

declare var UserProximityEvent: {
    prototype: UserProximityEvent;
    new(type: string, eventInitDict?: UserProximityEventInit): UserProximityEvent;
    isInstance(obj): obj is UserProximityEvent;
};

/**
 * This WebVR API interface represents any VR device supported by this API. It includes generic information such as device IDs and descriptions, as well as methods for starting to present a VR scene, retrieving eye parameters and display capabilities, and other important functionality.
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay)
 */
interface VRDisplay extends EventTarget {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/capabilities)
     */
    readonly capabilities: VRDisplayCapabilities;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/depthFar)
     */
    depthFar: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/depthNear)
     */
    depthNear: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/displayId)
     */
    readonly displayId: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/displayName)
     */
    readonly displayName: string;
    groupMask: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/isConnected)
     */
    readonly isConnected: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/isPresenting)
     */
    readonly isPresenting: boolean;
    readonly presentingGroups: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/stageParameters)
     */
    readonly stageParameters: VRStageParameters | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/cancelAnimationFrame)
     */
    cancelAnimationFrame(handle: number): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/exitPresent)
     */
    exitPresent(): Promise<void>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/getEyeParameters)
     */
    getEyeParameters(whichEye: VREye): VREyeParameters;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/getFrameData)
     */
    getFrameData(frameData: VRFrameData): boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/getLayers)
     */
    getLayers(): VRLayer[];
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/getPose)
     */
    getPose(): VRPose;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/requestAnimationFrame)
     */
    requestAnimationFrame(callback: FrameRequestCallback): number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/requestPresent)
     */
    requestPresent(layers: VRLayer[]): Promise<void>;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/resetPose)
     */
    resetPose(): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplay/submitFrame)
     */
    submitFrame(): void;
}

/** @deprecated */
declare var VRDisplay: {
    prototype: VRDisplay;
    new(): VRDisplay;
    isInstance(obj): obj is VRDisplay;
};

/**
 * This WebVR API interface describes the capabilities of a VRDisplay — its features can be used to perform VR device capability tests, for example can it return position information.
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities)
 */
interface VRDisplayCapabilities {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities/canPresent)
     */
    readonly canPresent: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities/hasExternalDisplay)
     */
    readonly hasExternalDisplay: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities/hasOrientation)
     */
    readonly hasOrientation: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities/hasPosition)
     */
    readonly hasPosition: boolean;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayCapabilities/maxLayers)
     */
    readonly maxLayers: number;
}

/** @deprecated */
declare var VRDisplayCapabilities: {
    prototype: VRDisplayCapabilities;
    new(): VRDisplayCapabilities;
    isInstance(obj): obj is VRDisplayCapabilities;
};

/**
 * This WebVR API interface represents represents the event object of WebVR-related events (see the list of WebVR window extensions).
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayEvent)
 */
interface VRDisplayEvent extends Event {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayEvent/display)
     */
    readonly display: VRDisplay;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRDisplayEvent/reason)
     */
    readonly reason: VRDisplayEventReason | null;
}

/** @deprecated */
declare var VRDisplayEvent: {
    prototype: VRDisplayEvent;
    new(type: string, eventInitDict: VRDisplayEventInit): VRDisplayEvent;
    isInstance(obj): obj is VRDisplayEvent;
};

/**
 * This WebVR API interface represents all the information required to correctly render a scene for a given eye, including field of view information.
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VREyeParameters)
 */
interface VREyeParameters {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VREyeParameters/fieldOfView)
     */
    readonly fieldOfView: VRFieldOfView;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VREyeParameters/offset)
     */
    readonly offset: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VREyeParameters/renderHeight)
     */
    readonly renderHeight: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VREyeParameters/renderWidth)
     */
    readonly renderWidth: number;
}

/** @deprecated */
declare var VREyeParameters: {
    prototype: VREyeParameters;
    new(): VREyeParameters;
    isInstance(obj): obj is VREyeParameters;
};

/**
 * This WebVR API interface represents a field of view defined by 4 different degree values describing the view from a center point.
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFieldOfView)
 */
interface VRFieldOfView {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFieldOfView/downDegrees)
     */
    readonly downDegrees: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFieldOfView/leftDegrees)
     */
    readonly leftDegrees: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFieldOfView/rightDegrees)
     */
    readonly rightDegrees: number;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFieldOfView/upDegrees)
     */
    readonly upDegrees: number;
}

/** @deprecated */
declare var VRFieldOfView: {
    prototype: VRFieldOfView;
    new(): VRFieldOfView;
    isInstance(obj): obj is VRFieldOfView;
};

/**
 * This WebVR API interface represents all the information needed to render a single frame of a VR scene; constructed by VRDisplay.getFrameData().
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData)
 */
interface VRFrameData {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/leftProjectionMatrix)
     */
    readonly leftProjectionMatrix: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/leftViewMatrix)
     */
    readonly leftViewMatrix: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/pose)
     */
    readonly pose: VRPose;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/rightProjectionMatrix)
     */
    readonly rightProjectionMatrix: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/rightViewMatrix)
     */
    readonly rightViewMatrix: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRFrameData/timestamp)
     */
    readonly timestamp: DOMHighResTimeStamp;
}

/** @deprecated */
declare var VRFrameData: {
    prototype: VRFrameData;
    new(): VRFrameData;
    isInstance(obj): obj is VRFrameData;
};

interface VRMockController {
    axisCount: number;
    buttonCount: number;
    capAngularAcceleration: boolean;
    capLinearAcceleration: boolean;
    capOrientation: boolean;
    capPosition: boolean;
    hand: GamepadHand;
    hapticCount: number;
    clear(): void;
    create(): void;
    setAxisValue(axisIdx: number, value: number): void;
    setButtonPressed(buttonIdx: number, pressed: boolean): void;
    setButtonTouched(buttonIdx: number, touched: boolean): void;
    setButtonTrigger(buttonIdx: number, trigger: number): void;
    setPose(position: Float32Array | null, linearVelocity: Float32Array | null, linearAcceleration: Float32Array | null, orientation: Float32Array | null, angularVelocity: Float32Array | null, angularAcceleration: Float32Array | null): void;
}

declare var VRMockController: {
    prototype: VRMockController;
    new(): VRMockController;
    isInstance(obj): obj is VRMockController;
};

interface VRMockDisplay {
    capAngularAcceleration: boolean;
    capExternal: boolean;
    capLinearAcceleration: boolean;
    capMountDetection: boolean;
    capOrientation: boolean;
    capPosition: boolean;
    capPositionEmulated: boolean;
    capPresent: boolean;
    capStageParameters: boolean;
    create(): void;
    setConnected(connected: boolean): void;
    setEyeFOV(eye: VREye, upDegree: number, rightDegree: number, downDegree: number, leftDegree: number): void;
    setEyeOffset(eye: VREye, offsetX: number, offsetY: number, offsetZ: number): void;
    setEyeResolution(renderWidth: number, renderHeight: number): void;
    setMounted(mounted: boolean): void;
    setPose(position: Float32Array | null, linearVelocity: Float32Array | null, linearAcceleration: Float32Array | null, orientation: Float32Array | null, angularVelocity: Float32Array | null, angularAcceleration: Float32Array | null): void;
    setSittingToStandingTransform(sittingToStandingTransform: Float32Array): void;
    setStageSize(width: number, height: number): void;
}

declare var VRMockDisplay: {
    prototype: VRMockDisplay;
    new(): VRMockDisplay;
    isInstance(obj): obj is VRMockDisplay;
};

/**
 * This WebVR API interface represents the state of a VR sensor at a given timestamp (which includes orientation, position, velocity, and acceleration information.)
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose)
 */
interface VRPose {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/angularAcceleration)
     */
    readonly angularAcceleration: Float32Array | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/angularVelocity)
     */
    readonly angularVelocity: Float32Array | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/linearAcceleration)
     */
    readonly linearAcceleration: Float32Array | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/linearVelocity)
     */
    readonly linearVelocity: Float32Array | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/orientation)
     */
    readonly orientation: Float32Array | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRPose/position)
     */
    readonly position: Float32Array | null;
}

/** @deprecated */
declare var VRPose: {
    prototype: VRPose;
    new(): VRPose;
    isInstance(obj): obj is VRPose;
};

interface VRServiceTest {
    acknowledgeFrame(): void;
    captureFrame(): void;
    clearAll(): void;
    commit(): void;
    end(): void;
    getVRController(controllerIdx: number): VRMockController;
    getVRDisplay(): VRMockDisplay;
    rejectFrame(): void;
    reset(): Promise<void>;
    run(): Promise<void>;
    startTimer(): void;
    stopTimer(): void;
    timeout(duration: number): void;
    wait(duration: number): void;
    waitHapticIntensity(controllerIdx: number, hapticIdx: number, intensity: number): void;
    waitPresentationEnd(): void;
    waitPresentationStart(): void;
    waitSubmit(): void;
}

declare var VRServiceTest: {
    prototype: VRServiceTest;
    new(): VRServiceTest;
    isInstance(obj): obj is VRServiceTest;
};

/**
 * @deprecated
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRStageParameters)
 */
interface VRStageParameters {
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRStageParameters/sittingToStandingTransform)
     */
    readonly sittingToStandingTransform: Float32Array;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VRStageParameters/sizeX)
     */
    readonly sizeX: number;
    readonly sizeZ: number;
}

/** @deprecated */
declare var VRStageParameters: {
    prototype: VRStageParameters;
    new(): VRStageParameters;
    isInstance(obj): obj is VRStageParameters;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue) */
interface VTTCue extends TextTrackCue {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/align) */
    align: AlignSetting;
    readonly computedLine: number;
    readonly computedPosition: number;
    readonly computedPositionAlign: PositionAlignSetting;
    displayState: HTMLDivElement | null;
    readonly getActive: boolean;
    readonly hasBeenReset: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/line) */
    line: number | AutoKeyword;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/lineAlign) */
    lineAlign: LineAlignSetting;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/position) */
    position: number | AutoKeyword;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/positionAlign) */
    positionAlign: PositionAlignSetting;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/region) */
    region: VTTRegion | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/size) */
    size: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/snapToLines) */
    snapToLines: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/text) */
    text: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/vertical) */
    vertical: DirectionSetting;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTCue/getCueAsHTML) */
    getCueAsHTML(): DocumentFragment;
    addEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: VTTCue, ev: TextTrackCueEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof TextTrackCueEventMap>(type: K, listener: (this: VTTCue, ev: TextTrackCueEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var VTTCue: {
    prototype: VTTCue;
    new(startTime: number, endTime: number, text: string): VTTCue;
    isInstance(obj): obj is VTTCue;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion) */
interface VTTRegion {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/id) */
    id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/lines) */
    lines: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/regionAnchorX) */
    regionAnchorX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/regionAnchorY) */
    regionAnchorY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/scroll) */
    scroll: ScrollSetting;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/viewportAnchorX) */
    viewportAnchorX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/viewportAnchorY) */
    viewportAnchorY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VTTRegion/width) */
    width: number;
}

declare var VTTRegion: {
    prototype: VTTRegion;
    new(): VTTRegion;
    isInstance(obj): obj is VTTRegion;
};

/**
 * The validity states that an element can be in, with respect to constraint validation. Together, they help explain why an element's value fails to validate, if it's not valid.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState)
 */
interface ValidityState {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/badInput) */
    readonly badInput: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/customError) */
    readonly customError: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/patternMismatch) */
    readonly patternMismatch: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/rangeOverflow) */
    readonly rangeOverflow: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/rangeUnderflow) */
    readonly rangeUnderflow: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/stepMismatch) */
    readonly stepMismatch: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/tooLong) */
    readonly tooLong: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/tooShort) */
    readonly tooShort: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/typeMismatch) */
    readonly typeMismatch: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/valid) */
    readonly valid: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ValidityState/valueMissing) */
    readonly valueMissing: boolean;
}

declare var ValidityState: {
    prototype: ValidityState;
    new(): ValidityState;
    isInstance(obj): obj is ValidityState;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace) */
interface VideoColorSpace {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace/fullRange) */
    readonly fullRange: boolean | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace/matrix) */
    readonly matrix: VideoMatrixCoefficients | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace/primaries) */
    readonly primaries: VideoColorPrimaries | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace/transfer) */
    readonly transfer: VideoTransferCharacteristics | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoColorSpace/toJSON) */
    toJSON(): any;
}

declare var VideoColorSpace: {
    prototype: VideoColorSpace;
    new(init?: VideoColorSpaceInit): VideoColorSpace;
    isInstance(obj): obj is VideoColorSpace;
};

interface VideoDecoderEventMap {
    "dequeue": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder)
 */
interface VideoDecoder extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/decodeQueueSize) */
    readonly decodeQueueSize: number;
    ondequeue: ((this: VideoDecoder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/state) */
    readonly state: CodecState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/configure) */
    configure(config: VideoDecoderConfig): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/decode) */
    decode(chunk: EncodedVideoChunk): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/flush) */
    flush(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoDecoder/reset) */
    reset(): void;
    addEventListener<K extends keyof VideoDecoderEventMap>(type: K, listener: (this: VideoDecoder, ev: VideoDecoderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof VideoDecoderEventMap>(type: K, listener: (this: VideoDecoder, ev: VideoDecoderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var VideoDecoder: {
    prototype: VideoDecoder;
    new(init: VideoDecoderInit): VideoDecoder;
    isConfigSupported(config: VideoDecoderConfig): Promise<VideoDecoderSupport>;
    isInstance(obj): obj is VideoDecoder;
};

interface VideoEncoderEventMap {
    "dequeue": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder)
 */
interface VideoEncoder extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/encodeQueueSize) */
    readonly encodeQueueSize: number;
    ondequeue: ((this: VideoEncoder, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/state) */
    readonly state: CodecState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/configure) */
    configure(config: VideoEncoderConfig): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/encode) */
    encode(frame: VideoFrame, options?: VideoEncoderEncodeOptions): void;
    flush(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoEncoder/reset) */
    reset(): void;
    addEventListener<K extends keyof VideoEncoderEventMap>(type: K, listener: (this: VideoEncoder, ev: VideoEncoderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof VideoEncoderEventMap>(type: K, listener: (this: VideoEncoder, ev: VideoEncoderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var VideoEncoder: {
    prototype: VideoEncoder;
    new(init: VideoEncoderInit): VideoEncoder;
    isConfigSupported(config: VideoEncoderConfig): Promise<VideoEncoderSupport>;
    isInstance(obj): obj is VideoEncoder;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame) */
interface VideoFrame {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/codedHeight) */
    readonly codedHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/codedRect) */
    readonly codedRect: DOMRectReadOnly | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/codedWidth) */
    readonly codedWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/colorSpace) */
    readonly colorSpace: VideoColorSpace;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/displayHeight) */
    readonly displayHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/displayWidth) */
    readonly displayWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/duration) */
    readonly duration: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/format) */
    readonly format: VideoPixelFormat | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/timestamp) */
    readonly timestamp: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/visibleRect) */
    readonly visibleRect: DOMRectReadOnly | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/allocationSize) */
    allocationSize(options?: VideoFrameCopyToOptions): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/clone) */
    clone(): VideoFrame;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoFrame/close) */
    close(): void;
    copyTo(destination: ArrayBufferView | ArrayBuffer, options?: VideoFrameCopyToOptions): Promise<PlaneLayout[]>;
}

declare var VideoFrame: {
    prototype: VideoFrame;
    new(imageElement: HTMLImageElement, init?: VideoFrameInit): VideoFrame;
    new(svgImageElement: SVGImageElement, init?: VideoFrameInit): VideoFrame;
    new(canvasElement: HTMLCanvasElement, init?: VideoFrameInit): VideoFrame;
    new(videoElement: HTMLVideoElement, init?: VideoFrameInit): VideoFrame;
    new(offscreenCanvas: OffscreenCanvas, init?: VideoFrameInit): VideoFrame;
    new(imageBitmap: ImageBitmap, init?: VideoFrameInit): VideoFrame;
    new(videoFrame: VideoFrame, init?: VideoFrameInit): VideoFrame;
    new(bufferView: ArrayBufferView, init: VideoFrameBufferInit): VideoFrame;
    new(buffer: ArrayBuffer, init: VideoFrameBufferInit): VideoFrame;
    isInstance(obj): obj is VideoFrame;
};

/**
 * Returned by the HTMLVideoElement.getVideoPlaybackQuality() method and contains metrics that can be used to determine the playback quality of a video.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoPlaybackQuality)
 */
interface VideoPlaybackQuality {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoPlaybackQuality/creationTime) */
    readonly creationTime: DOMHighResTimeStamp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoPlaybackQuality/droppedVideoFrames) */
    readonly droppedVideoFrames: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoPlaybackQuality/totalVideoFrames) */
    readonly totalVideoFrames: number;
}

declare var VideoPlaybackQuality: {
    prototype: VideoPlaybackQuality;
    new(): VideoPlaybackQuality;
    isInstance(obj): obj is VideoPlaybackQuality;
};

/**
 * A single video track from a <video> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack)
 */
interface VideoTrack {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack/id) */
    readonly id: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack/kind) */
    readonly kind: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack/label) */
    readonly label: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack/language) */
    readonly language: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrack/selected) */
    selected: boolean;
}

declare var VideoTrack: {
    prototype: VideoTrack;
    new(): VideoTrack;
    isInstance(obj): obj is VideoTrack;
};

interface VideoTrackListEventMap {
    "addtrack": Event;
    "change": Event;
    "removetrack": Event;
}

/**
 * Used to represent a list of the video tracks contained within a <video> element, with each track represented by a separate VideoTrack object in the list.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList)
 */
interface VideoTrackList extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/addtrack_event) */
    onaddtrack: ((this: VideoTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/change_event) */
    onchange: ((this: VideoTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/removetrack_event) */
    onremovetrack: ((this: VideoTrackList, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/selectedIndex) */
    readonly selectedIndex: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VideoTrackList/getTrackById) */
    getTrackById(id: string): VideoTrack | null;
    addEventListener<K extends keyof VideoTrackListEventMap>(type: K, listener: (this: VideoTrackList, ev: VideoTrackListEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof VideoTrackListEventMap>(type: K, listener: (this: VideoTrackList, ev: VideoTrackListEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [index: number]: VideoTrack;
}

declare var VideoTrackList: {
    prototype: VideoTrackList;
    new(): VideoTrackList;
    isInstance(obj): obj is VideoTrackList;
};

interface VisualViewportEventMap {
    "resize": Event;
    "scroll": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport) */
interface VisualViewport extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/offsetLeft) */
    readonly offsetLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/offsetTop) */
    readonly offsetTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/resize_event) */
    onresize: ((this: VisualViewport, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/scroll_event) */
    onscroll: ((this: VisualViewport, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/pageLeft) */
    readonly pageLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/pageTop) */
    readonly pageTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/scale) */
    readonly scale: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/VisualViewport/width) */
    readonly width: number;
    addEventListener<K extends keyof VisualViewportEventMap>(type: K, listener: (this: VisualViewport, ev: VisualViewportEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof VisualViewportEventMap>(type: K, listener: (this: VisualViewport, ev: VisualViewportEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var VisualViewport: {
    prototype: VisualViewport;
    new(): VisualViewport;
    isInstance(obj): obj is VisualViewport;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_color_buffer_float) */
interface WEBGL_color_buffer_float {
    readonly RGBA32F_EXT: 0x8814;
    readonly RGB32F_EXT: 0x8815;
    readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: 0x8211;
    readonly UNSIGNED_NORMALIZED_EXT: 0x8C17;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc) */
interface WEBGL_compressed_texture_astc {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_astc/getSupportedProfiles) */
    getSupportedProfiles(): string[] | null;
    readonly COMPRESSED_RGBA_ASTC_4x4_KHR: 0x93B0;
    readonly COMPRESSED_RGBA_ASTC_5x4_KHR: 0x93B1;
    readonly COMPRESSED_RGBA_ASTC_5x5_KHR: 0x93B2;
    readonly COMPRESSED_RGBA_ASTC_6x5_KHR: 0x93B3;
    readonly COMPRESSED_RGBA_ASTC_6x6_KHR: 0x93B4;
    readonly COMPRESSED_RGBA_ASTC_8x5_KHR: 0x93B5;
    readonly COMPRESSED_RGBA_ASTC_8x6_KHR: 0x93B6;
    readonly COMPRESSED_RGBA_ASTC_8x8_KHR: 0x93B7;
    readonly COMPRESSED_RGBA_ASTC_10x5_KHR: 0x93B8;
    readonly COMPRESSED_RGBA_ASTC_10x6_KHR: 0x93B9;
    readonly COMPRESSED_RGBA_ASTC_10x8_KHR: 0x93BA;
    readonly COMPRESSED_RGBA_ASTC_10x10_KHR: 0x93BB;
    readonly COMPRESSED_RGBA_ASTC_12x10_KHR: 0x93BC;
    readonly COMPRESSED_RGBA_ASTC_12x12_KHR: 0x93BD;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: 0x93D0;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: 0x93D1;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: 0x93D2;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: 0x93D3;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: 0x93D4;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: 0x93D5;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: 0x93D6;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: 0x93D7;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: 0x93D8;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: 0x93D9;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: 0x93DA;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: 0x93DB;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: 0x93DC;
    readonly COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: 0x93DD;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc) */
interface WEBGL_compressed_texture_etc {
    readonly COMPRESSED_R11_EAC: 0x9270;
    readonly COMPRESSED_SIGNED_R11_EAC: 0x9271;
    readonly COMPRESSED_RG11_EAC: 0x9272;
    readonly COMPRESSED_SIGNED_RG11_EAC: 0x9273;
    readonly COMPRESSED_RGB8_ETC2: 0x9274;
    readonly COMPRESSED_SRGB8_ETC2: 0x9275;
    readonly COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9276;
    readonly COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: 0x9277;
    readonly COMPRESSED_RGBA8_ETC2_EAC: 0x9278;
    readonly COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: 0x9279;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_etc1) */
interface WEBGL_compressed_texture_etc1 {
    readonly COMPRESSED_RGB_ETC1_WEBGL: 0x8D64;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_pvrtc) */
interface WEBGL_compressed_texture_pvrtc {
    readonly COMPRESSED_RGB_PVRTC_4BPPV1_IMG: 0x8C00;
    readonly COMPRESSED_RGB_PVRTC_2BPPV1_IMG: 0x8C01;
    readonly COMPRESSED_RGBA_PVRTC_4BPPV1_IMG: 0x8C02;
    readonly COMPRESSED_RGBA_PVRTC_2BPPV1_IMG: 0x8C03;
}

/**
 * The WEBGL_compressed_texture_s3tc extension is part of the WebGL API and exposes four S3TC compressed texture formats.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc)
 */
interface WEBGL_compressed_texture_s3tc {
    readonly COMPRESSED_RGB_S3TC_DXT1_EXT: 0x83F0;
    readonly COMPRESSED_RGBA_S3TC_DXT1_EXT: 0x83F1;
    readonly COMPRESSED_RGBA_S3TC_DXT3_EXT: 0x83F2;
    readonly COMPRESSED_RGBA_S3TC_DXT5_EXT: 0x83F3;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_compressed_texture_s3tc_srgb) */
interface WEBGL_compressed_texture_s3tc_srgb {
    readonly COMPRESSED_SRGB_S3TC_DXT1_EXT: 0x8C4C;
    readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 0x8C4D;
    readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 0x8C4E;
    readonly COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 0x8C4F;
}

/**
 * The WEBGL_debug_renderer_info extension is part of the WebGL API and exposes two constants with information about the graphics driver for debugging purposes.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info)
 */
interface WEBGL_debug_renderer_info {
    readonly UNMASKED_VENDOR_WEBGL: 0x9245;
    readonly UNMASKED_RENDERER_WEBGL: 0x9246;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders) */
interface WEBGL_debug_shaders {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_debug_shaders/getTranslatedShaderSource) */
    getTranslatedShaderSource(shader: WebGLShader): string;
}

/**
 * The WEBGL_depth_texture extension is part of the WebGL API and defines 2D depth and depth-stencil textures.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_depth_texture)
 */
interface WEBGL_depth_texture {
    readonly UNSIGNED_INT_24_8_WEBGL: 0x84FA;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers) */
interface WEBGL_draw_buffers {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_draw_buffers/drawBuffersWEBGL) */
    drawBuffersWEBGL(buffers: GLenum[]): void;
    readonly COLOR_ATTACHMENT0_WEBGL: 0x8CE0;
    readonly COLOR_ATTACHMENT1_WEBGL: 0x8CE1;
    readonly COLOR_ATTACHMENT2_WEBGL: 0x8CE2;
    readonly COLOR_ATTACHMENT3_WEBGL: 0x8CE3;
    readonly COLOR_ATTACHMENT4_WEBGL: 0x8CE4;
    readonly COLOR_ATTACHMENT5_WEBGL: 0x8CE5;
    readonly COLOR_ATTACHMENT6_WEBGL: 0x8CE6;
    readonly COLOR_ATTACHMENT7_WEBGL: 0x8CE7;
    readonly COLOR_ATTACHMENT8_WEBGL: 0x8CE8;
    readonly COLOR_ATTACHMENT9_WEBGL: 0x8CE9;
    readonly COLOR_ATTACHMENT10_WEBGL: 0x8CEA;
    readonly COLOR_ATTACHMENT11_WEBGL: 0x8CEB;
    readonly COLOR_ATTACHMENT12_WEBGL: 0x8CEC;
    readonly COLOR_ATTACHMENT13_WEBGL: 0x8CED;
    readonly COLOR_ATTACHMENT14_WEBGL: 0x8CEE;
    readonly COLOR_ATTACHMENT15_WEBGL: 0x8CEF;
    readonly DRAW_BUFFER0_WEBGL: 0x8825;
    readonly DRAW_BUFFER1_WEBGL: 0x8826;
    readonly DRAW_BUFFER2_WEBGL: 0x8827;
    readonly DRAW_BUFFER3_WEBGL: 0x8828;
    readonly DRAW_BUFFER4_WEBGL: 0x8829;
    readonly DRAW_BUFFER5_WEBGL: 0x882A;
    readonly DRAW_BUFFER6_WEBGL: 0x882B;
    readonly DRAW_BUFFER7_WEBGL: 0x882C;
    readonly DRAW_BUFFER8_WEBGL: 0x882D;
    readonly DRAW_BUFFER9_WEBGL: 0x882E;
    readonly DRAW_BUFFER10_WEBGL: 0x882F;
    readonly DRAW_BUFFER11_WEBGL: 0x8830;
    readonly DRAW_BUFFER12_WEBGL: 0x8831;
    readonly DRAW_BUFFER13_WEBGL: 0x8832;
    readonly DRAW_BUFFER14_WEBGL: 0x8833;
    readonly DRAW_BUFFER15_WEBGL: 0x8834;
    readonly MAX_COLOR_ATTACHMENTS_WEBGL: 0x8CDF;
    readonly MAX_DRAW_BUFFERS_WEBGL: 0x8824;
}

interface WEBGL_explicit_present {
    present(): void;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context) */
interface WEBGL_lose_context {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/loseContext) */
    loseContext(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WEBGL_lose_context/restoreContext) */
    restoreContext(): void;
}

interface WEBGL_provoking_vertex {
    provokingVertexWEBGL(provokeMode: GLenum): void;
    readonly FIRST_VERTEX_CONVENTION_WEBGL: 0x8E4D;
    readonly LAST_VERTEX_CONVENTION_WEBGL: 0x8E4E;
    readonly PROVOKING_VERTEX_WEBGL: 0x8E4F;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLock)
 */
interface WakeLock {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLock/request) */
    request(type?: WakeLockType): Promise<WakeLockSentinel>;
}

declare var WakeLock: {
    prototype: WakeLock;
    new(): WakeLock;
    isInstance(obj): obj is WakeLock;
};

interface WakeLockSentinelEventMap {
    "release": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLockSentinel)
 */
interface WakeLockSentinel extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLockSentinel/release_event) */
    onrelease: ((this: WakeLockSentinel, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLockSentinel/released) */
    readonly released: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLockSentinel/type) */
    readonly type: WakeLockType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WakeLockSentinel/release) */
    release(): Promise<void>;
    addEventListener<K extends keyof WakeLockSentinelEventMap>(type: K, listener: (this: WakeLockSentinel, ev: WakeLockSentinelEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WakeLockSentinelEventMap>(type: K, listener: (this: WakeLockSentinel, ev: WakeLockSentinelEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var WakeLockSentinel: {
    prototype: WakeLockSentinel;
    new(): WakeLockSentinel;
    isInstance(obj): obj is WakeLockSentinel;
};

/**
 * A WaveShaperNode always has exactly one input and one output.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WaveShaperNode)
 */
interface WaveShaperNode extends AudioNode, AudioNodePassThrough {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WaveShaperNode/curve) */
    curve: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WaveShaperNode/oversample) */
    oversample: OverSampleType;
}

declare var WaveShaperNode: {
    prototype: WaveShaperNode;
    new(context: BaseAudioContext, options?: WaveShaperOptions): WaveShaperNode;
    isInstance(obj): obj is WaveShaperNode;
};

interface WebBrowserPersistable {
    startPersistence(aContext: BrowsingContext | null, aRecv: nsIWebBrowserPersistDocumentReceiver): void;
}

interface WebExtensionContentScript extends MozDocumentMatcher {
    readonly cssPaths: string[];
    readonly jsPaths: string[];
    readonly runAt: ContentScriptRunAt;
}

declare var WebExtensionContentScript: {
    prototype: WebExtensionContentScript;
    new(extension: WebExtensionPolicy, options: WebExtensionContentScriptInit): WebExtensionContentScript;
    isInstance(obj): obj is WebExtensionContentScript;
};

interface WebExtensionPolicy {
    active: boolean;
    allowedOrigins: MatchPatternSet;
    readonly baseCSP: string;
    readonly baseURL: string;
    readonly browsingContextGroupId: number;
    readonly contentScripts: WebExtensionContentScript[];
    readonly extensionPageCSP: string;
    readonly id: string;
    ignoreQuarantine: boolean;
    readonly isPrivileged: boolean;
    readonly manifestVersion: number;
    readonly mozExtensionHostname: string;
    readonly name: string;
    permissions: string[];
    readonly privateBrowsingAllowed: boolean;
    readonly readyPromise: any;
    readonly temporarilyInstalled: boolean;
    readonly type: string;
    canAccessURI(uri: URI, explicit?: boolean): boolean;
    canAccessWindow(window: WindowProxy): boolean;
    getURL(path?: string): string;
    hasPermission(permission: string): boolean;
    injectContentScripts(): void;
    isManifestBackgroundWorker(workerURL: string): boolean;
    isWebAccessiblePath(pathname: UTF8String): boolean;
    localize(unlocalizedText: string): string;
    quarantinedFromURI(uri: URI): boolean;
    registerContentScript(script: WebExtensionContentScript): void;
    sourceMayAccessPath(sourceURI: URI, pathname: UTF8String): boolean;
    unregisterContentScript(script: WebExtensionContentScript): void;
}

declare var WebExtensionPolicy: {
    prototype: WebExtensionPolicy;
    new(options: WebExtensionInit): WebExtensionPolicy;
    readonly backgroundServiceWorkerEnabled: boolean;
    readonly isExtensionProcess: boolean;
    readonly quarantinedDomainsEnabled: boolean;
    readonly useRemoteWebExtensions: boolean;
    getActiveExtensions(): WebExtensionPolicy[];
    getByHostname(hostname: string): WebExtensionPolicy | null;
    getByID(id: string): WebExtensionPolicy | null;
    getByURI(uri: URI): WebExtensionPolicy | null;
    isQuarantinedURI(uri: URI): boolean;
    isRestrictedURI(uri: URI): boolean;
    isInstance(obj): obj is WebExtensionPolicy;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext) */
interface WebGL2RenderingContext extends WebGL2RenderingContextBase, WebGLRenderingContextBase {
}

declare var WebGL2RenderingContext: {
    prototype: WebGL2RenderingContext;
    new(): WebGL2RenderingContext;
    readonly READ_BUFFER: 0x0C02;
    readonly UNPACK_ROW_LENGTH: 0x0CF2;
    readonly UNPACK_SKIP_ROWS: 0x0CF3;
    readonly UNPACK_SKIP_PIXELS: 0x0CF4;
    readonly PACK_ROW_LENGTH: 0x0D02;
    readonly PACK_SKIP_ROWS: 0x0D03;
    readonly PACK_SKIP_PIXELS: 0x0D04;
    readonly COLOR: 0x1800;
    readonly DEPTH: 0x1801;
    readonly STENCIL: 0x1802;
    readonly RED: 0x1903;
    readonly RGB8: 0x8051;
    readonly RGBA8: 0x8058;
    readonly RGB10_A2: 0x8059;
    readonly TEXTURE_BINDING_3D: 0x806A;
    readonly UNPACK_SKIP_IMAGES: 0x806D;
    readonly UNPACK_IMAGE_HEIGHT: 0x806E;
    readonly TEXTURE_3D: 0x806F;
    readonly TEXTURE_WRAP_R: 0x8072;
    readonly MAX_3D_TEXTURE_SIZE: 0x8073;
    readonly UNSIGNED_INT_2_10_10_10_REV: 0x8368;
    readonly MAX_ELEMENTS_VERTICES: 0x80E8;
    readonly MAX_ELEMENTS_INDICES: 0x80E9;
    readonly TEXTURE_MIN_LOD: 0x813A;
    readonly TEXTURE_MAX_LOD: 0x813B;
    readonly TEXTURE_BASE_LEVEL: 0x813C;
    readonly TEXTURE_MAX_LEVEL: 0x813D;
    readonly MIN: 0x8007;
    readonly MAX: 0x8008;
    readonly DEPTH_COMPONENT24: 0x81A6;
    readonly MAX_TEXTURE_LOD_BIAS: 0x84FD;
    readonly TEXTURE_COMPARE_MODE: 0x884C;
    readonly TEXTURE_COMPARE_FUNC: 0x884D;
    readonly CURRENT_QUERY: 0x8865;
    readonly QUERY_RESULT: 0x8866;
    readonly QUERY_RESULT_AVAILABLE: 0x8867;
    readonly STREAM_READ: 0x88E1;
    readonly STREAM_COPY: 0x88E2;
    readonly STATIC_READ: 0x88E5;
    readonly STATIC_COPY: 0x88E6;
    readonly DYNAMIC_READ: 0x88E9;
    readonly DYNAMIC_COPY: 0x88EA;
    readonly MAX_DRAW_BUFFERS: 0x8824;
    readonly DRAW_BUFFER0: 0x8825;
    readonly DRAW_BUFFER1: 0x8826;
    readonly DRAW_BUFFER2: 0x8827;
    readonly DRAW_BUFFER3: 0x8828;
    readonly DRAW_BUFFER4: 0x8829;
    readonly DRAW_BUFFER5: 0x882A;
    readonly DRAW_BUFFER6: 0x882B;
    readonly DRAW_BUFFER7: 0x882C;
    readonly DRAW_BUFFER8: 0x882D;
    readonly DRAW_BUFFER9: 0x882E;
    readonly DRAW_BUFFER10: 0x882F;
    readonly DRAW_BUFFER11: 0x8830;
    readonly DRAW_BUFFER12: 0x8831;
    readonly DRAW_BUFFER13: 0x8832;
    readonly DRAW_BUFFER14: 0x8833;
    readonly DRAW_BUFFER15: 0x8834;
    readonly MAX_FRAGMENT_UNIFORM_COMPONENTS: 0x8B49;
    readonly MAX_VERTEX_UNIFORM_COMPONENTS: 0x8B4A;
    readonly SAMPLER_3D: 0x8B5F;
    readonly SAMPLER_2D_SHADOW: 0x8B62;
    readonly FRAGMENT_SHADER_DERIVATIVE_HINT: 0x8B8B;
    readonly PIXEL_PACK_BUFFER: 0x88EB;
    readonly PIXEL_UNPACK_BUFFER: 0x88EC;
    readonly PIXEL_PACK_BUFFER_BINDING: 0x88ED;
    readonly PIXEL_UNPACK_BUFFER_BINDING: 0x88EF;
    readonly FLOAT_MAT2x3: 0x8B65;
    readonly FLOAT_MAT2x4: 0x8B66;
    readonly FLOAT_MAT3x2: 0x8B67;
    readonly FLOAT_MAT3x4: 0x8B68;
    readonly FLOAT_MAT4x2: 0x8B69;
    readonly FLOAT_MAT4x3: 0x8B6A;
    readonly SRGB: 0x8C40;
    readonly SRGB8: 0x8C41;
    readonly SRGB8_ALPHA8: 0x8C43;
    readonly COMPARE_REF_TO_TEXTURE: 0x884E;
    readonly RGBA32F: 0x8814;
    readonly RGB32F: 0x8815;
    readonly RGBA16F: 0x881A;
    readonly RGB16F: 0x881B;
    readonly VERTEX_ATTRIB_ARRAY_INTEGER: 0x88FD;
    readonly MAX_ARRAY_TEXTURE_LAYERS: 0x88FF;
    readonly MIN_PROGRAM_TEXEL_OFFSET: 0x8904;
    readonly MAX_PROGRAM_TEXEL_OFFSET: 0x8905;
    readonly MAX_VARYING_COMPONENTS: 0x8B4B;
    readonly TEXTURE_2D_ARRAY: 0x8C1A;
    readonly TEXTURE_BINDING_2D_ARRAY: 0x8C1D;
    readonly R11F_G11F_B10F: 0x8C3A;
    readonly UNSIGNED_INT_10F_11F_11F_REV: 0x8C3B;
    readonly RGB9_E5: 0x8C3D;
    readonly UNSIGNED_INT_5_9_9_9_REV: 0x8C3E;
    readonly TRANSFORM_FEEDBACK_BUFFER_MODE: 0x8C7F;
    readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS: 0x8C80;
    readonly TRANSFORM_FEEDBACK_VARYINGS: 0x8C83;
    readonly TRANSFORM_FEEDBACK_BUFFER_START: 0x8C84;
    readonly TRANSFORM_FEEDBACK_BUFFER_SIZE: 0x8C85;
    readonly TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: 0x8C88;
    readonly RASTERIZER_DISCARD: 0x8C89;
    readonly MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS: 0x8C8A;
    readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS: 0x8C8B;
    readonly INTERLEAVED_ATTRIBS: 0x8C8C;
    readonly SEPARATE_ATTRIBS: 0x8C8D;
    readonly TRANSFORM_FEEDBACK_BUFFER: 0x8C8E;
    readonly TRANSFORM_FEEDBACK_BUFFER_BINDING: 0x8C8F;
    readonly RGBA32UI: 0x8D70;
    readonly RGB32UI: 0x8D71;
    readonly RGBA16UI: 0x8D76;
    readonly RGB16UI: 0x8D77;
    readonly RGBA8UI: 0x8D7C;
    readonly RGB8UI: 0x8D7D;
    readonly RGBA32I: 0x8D82;
    readonly RGB32I: 0x8D83;
    readonly RGBA16I: 0x8D88;
    readonly RGB16I: 0x8D89;
    readonly RGBA8I: 0x8D8E;
    readonly RGB8I: 0x8D8F;
    readonly RED_INTEGER: 0x8D94;
    readonly RGB_INTEGER: 0x8D98;
    readonly RGBA_INTEGER: 0x8D99;
    readonly SAMPLER_2D_ARRAY: 0x8DC1;
    readonly SAMPLER_2D_ARRAY_SHADOW: 0x8DC4;
    readonly SAMPLER_CUBE_SHADOW: 0x8DC5;
    readonly UNSIGNED_INT_VEC2: 0x8DC6;
    readonly UNSIGNED_INT_VEC3: 0x8DC7;
    readonly UNSIGNED_INT_VEC4: 0x8DC8;
    readonly INT_SAMPLER_2D: 0x8DCA;
    readonly INT_SAMPLER_3D: 0x8DCB;
    readonly INT_SAMPLER_CUBE: 0x8DCC;
    readonly INT_SAMPLER_2D_ARRAY: 0x8DCF;
    readonly UNSIGNED_INT_SAMPLER_2D: 0x8DD2;
    readonly UNSIGNED_INT_SAMPLER_3D: 0x8DD3;
    readonly UNSIGNED_INT_SAMPLER_CUBE: 0x8DD4;
    readonly UNSIGNED_INT_SAMPLER_2D_ARRAY: 0x8DD7;
    readonly DEPTH_COMPONENT32F: 0x8CAC;
    readonly DEPTH32F_STENCIL8: 0x8CAD;
    readonly FLOAT_32_UNSIGNED_INT_24_8_REV: 0x8DAD;
    readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: 0x8210;
    readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: 0x8211;
    readonly FRAMEBUFFER_ATTACHMENT_RED_SIZE: 0x8212;
    readonly FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: 0x8213;
    readonly FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: 0x8214;
    readonly FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: 0x8215;
    readonly FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: 0x8216;
    readonly FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: 0x8217;
    readonly FRAMEBUFFER_DEFAULT: 0x8218;
    readonly UNSIGNED_INT_24_8: 0x84FA;
    readonly DEPTH24_STENCIL8: 0x88F0;
    readonly UNSIGNED_NORMALIZED: 0x8C17;
    readonly DRAW_FRAMEBUFFER_BINDING: 0x8CA6;
    readonly READ_FRAMEBUFFER: 0x8CA8;
    readonly DRAW_FRAMEBUFFER: 0x8CA9;
    readonly READ_FRAMEBUFFER_BINDING: 0x8CAA;
    readonly RENDERBUFFER_SAMPLES: 0x8CAB;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER: 0x8CD4;
    readonly MAX_COLOR_ATTACHMENTS: 0x8CDF;
    readonly COLOR_ATTACHMENT1: 0x8CE1;
    readonly COLOR_ATTACHMENT2: 0x8CE2;
    readonly COLOR_ATTACHMENT3: 0x8CE3;
    readonly COLOR_ATTACHMENT4: 0x8CE4;
    readonly COLOR_ATTACHMENT5: 0x8CE5;
    readonly COLOR_ATTACHMENT6: 0x8CE6;
    readonly COLOR_ATTACHMENT7: 0x8CE7;
    readonly COLOR_ATTACHMENT8: 0x8CE8;
    readonly COLOR_ATTACHMENT9: 0x8CE9;
    readonly COLOR_ATTACHMENT10: 0x8CEA;
    readonly COLOR_ATTACHMENT11: 0x8CEB;
    readonly COLOR_ATTACHMENT12: 0x8CEC;
    readonly COLOR_ATTACHMENT13: 0x8CED;
    readonly COLOR_ATTACHMENT14: 0x8CEE;
    readonly COLOR_ATTACHMENT15: 0x8CEF;
    readonly FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: 0x8D56;
    readonly MAX_SAMPLES: 0x8D57;
    readonly HALF_FLOAT: 0x140B;
    readonly RG: 0x8227;
    readonly RG_INTEGER: 0x8228;
    readonly R8: 0x8229;
    readonly RG8: 0x822B;
    readonly R16F: 0x822D;
    readonly R32F: 0x822E;
    readonly RG16F: 0x822F;
    readonly RG32F: 0x8230;
    readonly R8I: 0x8231;
    readonly R8UI: 0x8232;
    readonly R16I: 0x8233;
    readonly R16UI: 0x8234;
    readonly R32I: 0x8235;
    readonly R32UI: 0x8236;
    readonly RG8I: 0x8237;
    readonly RG8UI: 0x8238;
    readonly RG16I: 0x8239;
    readonly RG16UI: 0x823A;
    readonly RG32I: 0x823B;
    readonly RG32UI: 0x823C;
    readonly VERTEX_ARRAY_BINDING: 0x85B5;
    readonly R8_SNORM: 0x8F94;
    readonly RG8_SNORM: 0x8F95;
    readonly RGB8_SNORM: 0x8F96;
    readonly RGBA8_SNORM: 0x8F97;
    readonly SIGNED_NORMALIZED: 0x8F9C;
    readonly COPY_READ_BUFFER: 0x8F36;
    readonly COPY_WRITE_BUFFER: 0x8F37;
    readonly COPY_READ_BUFFER_BINDING: 0x8F36;
    readonly COPY_WRITE_BUFFER_BINDING: 0x8F37;
    readonly UNIFORM_BUFFER: 0x8A11;
    readonly UNIFORM_BUFFER_BINDING: 0x8A28;
    readonly UNIFORM_BUFFER_START: 0x8A29;
    readonly UNIFORM_BUFFER_SIZE: 0x8A2A;
    readonly MAX_VERTEX_UNIFORM_BLOCKS: 0x8A2B;
    readonly MAX_FRAGMENT_UNIFORM_BLOCKS: 0x8A2D;
    readonly MAX_COMBINED_UNIFORM_BLOCKS: 0x8A2E;
    readonly MAX_UNIFORM_BUFFER_BINDINGS: 0x8A2F;
    readonly MAX_UNIFORM_BLOCK_SIZE: 0x8A30;
    readonly MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS: 0x8A31;
    readonly MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS: 0x8A33;
    readonly UNIFORM_BUFFER_OFFSET_ALIGNMENT: 0x8A34;
    readonly ACTIVE_UNIFORM_BLOCKS: 0x8A36;
    readonly UNIFORM_TYPE: 0x8A37;
    readonly UNIFORM_SIZE: 0x8A38;
    readonly UNIFORM_BLOCK_INDEX: 0x8A3A;
    readonly UNIFORM_OFFSET: 0x8A3B;
    readonly UNIFORM_ARRAY_STRIDE: 0x8A3C;
    readonly UNIFORM_MATRIX_STRIDE: 0x8A3D;
    readonly UNIFORM_IS_ROW_MAJOR: 0x8A3E;
    readonly UNIFORM_BLOCK_BINDING: 0x8A3F;
    readonly UNIFORM_BLOCK_DATA_SIZE: 0x8A40;
    readonly UNIFORM_BLOCK_ACTIVE_UNIFORMS: 0x8A42;
    readonly UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES: 0x8A43;
    readonly UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER: 0x8A44;
    readonly UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER: 0x8A46;
    readonly INVALID_INDEX: 0xFFFFFFFF;
    readonly MAX_VERTEX_OUTPUT_COMPONENTS: 0x9122;
    readonly MAX_FRAGMENT_INPUT_COMPONENTS: 0x9125;
    readonly MAX_SERVER_WAIT_TIMEOUT: 0x9111;
    readonly OBJECT_TYPE: 0x9112;
    readonly SYNC_CONDITION: 0x9113;
    readonly SYNC_STATUS: 0x9114;
    readonly SYNC_FLAGS: 0x9115;
    readonly SYNC_FENCE: 0x9116;
    readonly SYNC_GPU_COMMANDS_COMPLETE: 0x9117;
    readonly UNSIGNALED: 0x9118;
    readonly SIGNALED: 0x9119;
    readonly ALREADY_SIGNALED: 0x911A;
    readonly TIMEOUT_EXPIRED: 0x911B;
    readonly CONDITION_SATISFIED: 0x911C;
    readonly WAIT_FAILED: 0x911D;
    readonly SYNC_FLUSH_COMMANDS_BIT: 0x00000001;
    readonly VERTEX_ATTRIB_ARRAY_DIVISOR: 0x88FE;
    readonly ANY_SAMPLES_PASSED: 0x8C2F;
    readonly ANY_SAMPLES_PASSED_CONSERVATIVE: 0x8D6A;
    readonly SAMPLER_BINDING: 0x8919;
    readonly RGB10_A2UI: 0x906F;
    readonly INT_2_10_10_10_REV: 0x8D9F;
    readonly TRANSFORM_FEEDBACK: 0x8E22;
    readonly TRANSFORM_FEEDBACK_PAUSED: 0x8E23;
    readonly TRANSFORM_FEEDBACK_ACTIVE: 0x8E24;
    readonly TRANSFORM_FEEDBACK_BINDING: 0x8E25;
    readonly TEXTURE_IMMUTABLE_FORMAT: 0x912F;
    readonly MAX_ELEMENT_INDEX: 0x8D6B;
    readonly TEXTURE_IMMUTABLE_LEVELS: 0x82DF;
    readonly TIMEOUT_IGNORED: -1;
    readonly MAX_CLIENT_WAIT_TIMEOUT_WEBGL: 0x9247;
    readonly DEPTH_BUFFER_BIT: 0x00000100;
    readonly STENCIL_BUFFER_BIT: 0x00000400;
    readonly COLOR_BUFFER_BIT: 0x00004000;
    readonly POINTS: 0x0000;
    readonly LINES: 0x0001;
    readonly LINE_LOOP: 0x0002;
    readonly LINE_STRIP: 0x0003;
    readonly TRIANGLES: 0x0004;
    readonly TRIANGLE_STRIP: 0x0005;
    readonly TRIANGLE_FAN: 0x0006;
    readonly ZERO: 0;
    readonly ONE: 1;
    readonly SRC_COLOR: 0x0300;
    readonly ONE_MINUS_SRC_COLOR: 0x0301;
    readonly SRC_ALPHA: 0x0302;
    readonly ONE_MINUS_SRC_ALPHA: 0x0303;
    readonly DST_ALPHA: 0x0304;
    readonly ONE_MINUS_DST_ALPHA: 0x0305;
    readonly DST_COLOR: 0x0306;
    readonly ONE_MINUS_DST_COLOR: 0x0307;
    readonly SRC_ALPHA_SATURATE: 0x0308;
    readonly FUNC_ADD: 0x8006;
    readonly BLEND_EQUATION: 0x8009;
    readonly BLEND_EQUATION_RGB: 0x8009;
    readonly BLEND_EQUATION_ALPHA: 0x883D;
    readonly FUNC_SUBTRACT: 0x800A;
    readonly FUNC_REVERSE_SUBTRACT: 0x800B;
    readonly BLEND_DST_RGB: 0x80C8;
    readonly BLEND_SRC_RGB: 0x80C9;
    readonly BLEND_DST_ALPHA: 0x80CA;
    readonly BLEND_SRC_ALPHA: 0x80CB;
    readonly CONSTANT_COLOR: 0x8001;
    readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
    readonly CONSTANT_ALPHA: 0x8003;
    readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
    readonly BLEND_COLOR: 0x8005;
    readonly ARRAY_BUFFER: 0x8892;
    readonly ELEMENT_ARRAY_BUFFER: 0x8893;
    readonly ARRAY_BUFFER_BINDING: 0x8894;
    readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
    readonly STREAM_DRAW: 0x88E0;
    readonly STATIC_DRAW: 0x88E4;
    readonly DYNAMIC_DRAW: 0x88E8;
    readonly BUFFER_SIZE: 0x8764;
    readonly BUFFER_USAGE: 0x8765;
    readonly CURRENT_VERTEX_ATTRIB: 0x8626;
    readonly FRONT: 0x0404;
    readonly BACK: 0x0405;
    readonly FRONT_AND_BACK: 0x0408;
    readonly CULL_FACE: 0x0B44;
    readonly BLEND: 0x0BE2;
    readonly DITHER: 0x0BD0;
    readonly STENCIL_TEST: 0x0B90;
    readonly DEPTH_TEST: 0x0B71;
    readonly SCISSOR_TEST: 0x0C11;
    readonly POLYGON_OFFSET_FILL: 0x8037;
    readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
    readonly SAMPLE_COVERAGE: 0x80A0;
    readonly NO_ERROR: 0;
    readonly INVALID_ENUM: 0x0500;
    readonly INVALID_VALUE: 0x0501;
    readonly INVALID_OPERATION: 0x0502;
    readonly OUT_OF_MEMORY: 0x0505;
    readonly CW: 0x0900;
    readonly CCW: 0x0901;
    readonly LINE_WIDTH: 0x0B21;
    readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
    readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
    readonly CULL_FACE_MODE: 0x0B45;
    readonly FRONT_FACE: 0x0B46;
    readonly DEPTH_RANGE: 0x0B70;
    readonly DEPTH_WRITEMASK: 0x0B72;
    readonly DEPTH_CLEAR_VALUE: 0x0B73;
    readonly DEPTH_FUNC: 0x0B74;
    readonly STENCIL_CLEAR_VALUE: 0x0B91;
    readonly STENCIL_FUNC: 0x0B92;
    readonly STENCIL_FAIL: 0x0B94;
    readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
    readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
    readonly STENCIL_REF: 0x0B97;
    readonly STENCIL_VALUE_MASK: 0x0B93;
    readonly STENCIL_WRITEMASK: 0x0B98;
    readonly STENCIL_BACK_FUNC: 0x8800;
    readonly STENCIL_BACK_FAIL: 0x8801;
    readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
    readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
    readonly STENCIL_BACK_REF: 0x8CA3;
    readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
    readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
    readonly VIEWPORT: 0x0BA2;
    readonly SCISSOR_BOX: 0x0C10;
    readonly COLOR_CLEAR_VALUE: 0x0C22;
    readonly COLOR_WRITEMASK: 0x0C23;
    readonly UNPACK_ALIGNMENT: 0x0CF5;
    readonly PACK_ALIGNMENT: 0x0D05;
    readonly MAX_TEXTURE_SIZE: 0x0D33;
    readonly MAX_VIEWPORT_DIMS: 0x0D3A;
    readonly SUBPIXEL_BITS: 0x0D50;
    readonly RED_BITS: 0x0D52;
    readonly GREEN_BITS: 0x0D53;
    readonly BLUE_BITS: 0x0D54;
    readonly ALPHA_BITS: 0x0D55;
    readonly DEPTH_BITS: 0x0D56;
    readonly STENCIL_BITS: 0x0D57;
    readonly POLYGON_OFFSET_UNITS: 0x2A00;
    readonly POLYGON_OFFSET_FACTOR: 0x8038;
    readonly TEXTURE_BINDING_2D: 0x8069;
    readonly SAMPLE_BUFFERS: 0x80A8;
    readonly SAMPLES: 0x80A9;
    readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
    readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
    readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
    readonly DONT_CARE: 0x1100;
    readonly FASTEST: 0x1101;
    readonly NICEST: 0x1102;
    readonly GENERATE_MIPMAP_HINT: 0x8192;
    readonly BYTE: 0x1400;
    readonly UNSIGNED_BYTE: 0x1401;
    readonly SHORT: 0x1402;
    readonly UNSIGNED_SHORT: 0x1403;
    readonly INT: 0x1404;
    readonly UNSIGNED_INT: 0x1405;
    readonly FLOAT: 0x1406;
    readonly DEPTH_COMPONENT: 0x1902;
    readonly ALPHA: 0x1906;
    readonly RGB: 0x1907;
    readonly RGBA: 0x1908;
    readonly LUMINANCE: 0x1909;
    readonly LUMINANCE_ALPHA: 0x190A;
    readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
    readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
    readonly UNSIGNED_SHORT_5_6_5: 0x8363;
    readonly FRAGMENT_SHADER: 0x8B30;
    readonly VERTEX_SHADER: 0x8B31;
    readonly MAX_VERTEX_ATTRIBS: 0x8869;
    readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
    readonly MAX_VARYING_VECTORS: 0x8DFC;
    readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
    readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
    readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
    readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
    readonly SHADER_TYPE: 0x8B4F;
    readonly DELETE_STATUS: 0x8B80;
    readonly LINK_STATUS: 0x8B82;
    readonly VALIDATE_STATUS: 0x8B83;
    readonly ATTACHED_SHADERS: 0x8B85;
    readonly ACTIVE_UNIFORMS: 0x8B86;
    readonly ACTIVE_ATTRIBUTES: 0x8B89;
    readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
    readonly CURRENT_PROGRAM: 0x8B8D;
    readonly NEVER: 0x0200;
    readonly LESS: 0x0201;
    readonly EQUAL: 0x0202;
    readonly LEQUAL: 0x0203;
    readonly GREATER: 0x0204;
    readonly NOTEQUAL: 0x0205;
    readonly GEQUAL: 0x0206;
    readonly ALWAYS: 0x0207;
    readonly KEEP: 0x1E00;
    readonly REPLACE: 0x1E01;
    readonly INCR: 0x1E02;
    readonly DECR: 0x1E03;
    readonly INVERT: 0x150A;
    readonly INCR_WRAP: 0x8507;
    readonly DECR_WRAP: 0x8508;
    readonly VENDOR: 0x1F00;
    readonly RENDERER: 0x1F01;
    readonly VERSION: 0x1F02;
    readonly NEAREST: 0x2600;
    readonly LINEAR: 0x2601;
    readonly NEAREST_MIPMAP_NEAREST: 0x2700;
    readonly LINEAR_MIPMAP_NEAREST: 0x2701;
    readonly NEAREST_MIPMAP_LINEAR: 0x2702;
    readonly LINEAR_MIPMAP_LINEAR: 0x2703;
    readonly TEXTURE_MAG_FILTER: 0x2800;
    readonly TEXTURE_MIN_FILTER: 0x2801;
    readonly TEXTURE_WRAP_S: 0x2802;
    readonly TEXTURE_WRAP_T: 0x2803;
    readonly TEXTURE_2D: 0x0DE1;
    readonly TEXTURE: 0x1702;
    readonly TEXTURE_CUBE_MAP: 0x8513;
    readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
    readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
    readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
    readonly TEXTURE0: 0x84C0;
    readonly TEXTURE1: 0x84C1;
    readonly TEXTURE2: 0x84C2;
    readonly TEXTURE3: 0x84C3;
    readonly TEXTURE4: 0x84C4;
    readonly TEXTURE5: 0x84C5;
    readonly TEXTURE6: 0x84C6;
    readonly TEXTURE7: 0x84C7;
    readonly TEXTURE8: 0x84C8;
    readonly TEXTURE9: 0x84C9;
    readonly TEXTURE10: 0x84CA;
    readonly TEXTURE11: 0x84CB;
    readonly TEXTURE12: 0x84CC;
    readonly TEXTURE13: 0x84CD;
    readonly TEXTURE14: 0x84CE;
    readonly TEXTURE15: 0x84CF;
    readonly TEXTURE16: 0x84D0;
    readonly TEXTURE17: 0x84D1;
    readonly TEXTURE18: 0x84D2;
    readonly TEXTURE19: 0x84D3;
    readonly TEXTURE20: 0x84D4;
    readonly TEXTURE21: 0x84D5;
    readonly TEXTURE22: 0x84D6;
    readonly TEXTURE23: 0x84D7;
    readonly TEXTURE24: 0x84D8;
    readonly TEXTURE25: 0x84D9;
    readonly TEXTURE26: 0x84DA;
    readonly TEXTURE27: 0x84DB;
    readonly TEXTURE28: 0x84DC;
    readonly TEXTURE29: 0x84DD;
    readonly TEXTURE30: 0x84DE;
    readonly TEXTURE31: 0x84DF;
    readonly ACTIVE_TEXTURE: 0x84E0;
    readonly REPEAT: 0x2901;
    readonly CLAMP_TO_EDGE: 0x812F;
    readonly MIRRORED_REPEAT: 0x8370;
    readonly FLOAT_VEC2: 0x8B50;
    readonly FLOAT_VEC3: 0x8B51;
    readonly FLOAT_VEC4: 0x8B52;
    readonly INT_VEC2: 0x8B53;
    readonly INT_VEC3: 0x8B54;
    readonly INT_VEC4: 0x8B55;
    readonly BOOL: 0x8B56;
    readonly BOOL_VEC2: 0x8B57;
    readonly BOOL_VEC3: 0x8B58;
    readonly BOOL_VEC4: 0x8B59;
    readonly FLOAT_MAT2: 0x8B5A;
    readonly FLOAT_MAT3: 0x8B5B;
    readonly FLOAT_MAT4: 0x8B5C;
    readonly SAMPLER_2D: 0x8B5E;
    readonly SAMPLER_CUBE: 0x8B60;
    readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
    readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
    readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
    readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
    readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
    readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
    readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
    readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
    readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
    readonly COMPILE_STATUS: 0x8B81;
    readonly LOW_FLOAT: 0x8DF0;
    readonly MEDIUM_FLOAT: 0x8DF1;
    readonly HIGH_FLOAT: 0x8DF2;
    readonly LOW_INT: 0x8DF3;
    readonly MEDIUM_INT: 0x8DF4;
    readonly HIGH_INT: 0x8DF5;
    readonly FRAMEBUFFER: 0x8D40;
    readonly RENDERBUFFER: 0x8D41;
    readonly RGBA4: 0x8056;
    readonly RGB5_A1: 0x8057;
    readonly RGB565: 0x8D62;
    readonly DEPTH_COMPONENT16: 0x81A5;
    readonly STENCIL_INDEX8: 0x8D48;
    readonly DEPTH_STENCIL: 0x84F9;
    readonly RENDERBUFFER_WIDTH: 0x8D42;
    readonly RENDERBUFFER_HEIGHT: 0x8D43;
    readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
    readonly RENDERBUFFER_RED_SIZE: 0x8D50;
    readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
    readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
    readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
    readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
    readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
    readonly COLOR_ATTACHMENT0: 0x8CE0;
    readonly DEPTH_ATTACHMENT: 0x8D00;
    readonly STENCIL_ATTACHMENT: 0x8D20;
    readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
    readonly NONE: 0;
    readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
    readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
    readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
    readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
    readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
    readonly FRAMEBUFFER_BINDING: 0x8CA6;
    readonly RENDERBUFFER_BINDING: 0x8CA7;
    readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
    readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
    readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
    readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
    readonly CONTEXT_LOST_WEBGL: 0x9242;
    readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
    readonly BROWSER_DEFAULT_WEBGL: 0x9244;
    isInstance(obj): obj is WebGL2RenderingContext;
};

interface WebGL2RenderingContextBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginQuery) */
    beginQuery(target: GLenum, query: WebGLQuery): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/beginTransformFeedback) */
    beginTransformFeedback(primitiveMode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferBase) */
    bindBufferBase(target: GLenum, index: GLuint, buffer: WebGLBuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindBufferRange) */
    bindBufferRange(target: GLenum, index: GLuint, buffer: WebGLBuffer | null, offset: GLintptr, size: GLsizeiptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindSampler) */
    bindSampler(unit: GLuint, sampler: WebGLSampler | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindTransformFeedback) */
    bindTransformFeedback(target: GLenum, tf: WebGLTransformFeedback | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/bindVertexArray) */
    bindVertexArray(array: WebGLVertexArrayObject | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/blitFramebuffer) */
    blitFramebuffer(srcX0: GLint, srcY0: GLint, srcX1: GLint, srcY1: GLint, dstX0: GLint, dstY0: GLint, dstX1: GLint, dstY1: GLint, mask: GLbitfield, filter: GLenum): void;
    bufferData(target: GLenum, size: GLsizeiptr, usage: GLenum): void;
    bufferData(target: GLenum, srcData: ArrayBuffer | null, usage: GLenum): void;
    bufferData(target: GLenum, srcData: ArrayBufferView, usage: GLenum): void;
    bufferData(target: GLenum, srcData: ArrayBufferView, usage: GLenum, srcOffset: GLuint, length?: GLuint): void;
    bufferSubData(target: GLenum, offset: GLintptr, srcData: ArrayBuffer): void;
    bufferSubData(target: GLenum, offset: GLintptr, srcData: ArrayBufferView): void;
    bufferSubData(target: GLenum, dstByteOffset: GLintptr, srcData: ArrayBufferView, srcOffset: GLuint, length?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
    clearBufferfi(buffer: GLenum, drawbuffer: GLint, depth: GLfloat, stencil: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
    clearBufferfv(buffer: GLenum, drawbuffer: GLint, values: Float32List, srcOffset?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
    clearBufferiv(buffer: GLenum, drawbuffer: GLint, values: Int32List, srcOffset?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clearBuffer) */
    clearBufferuiv(buffer: GLenum, drawbuffer: GLint, values: Uint32List, srcOffset?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/clientWaitSync) */
    clientWaitSync(sync: WebGLSync, flags: GLbitfield, timeout: GLuint64): GLenum;
    compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, imageSize: GLsizei, offset: GLintptr): void;
    compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, srcData: ArrayBufferView, srcOffset?: GLuint, srcLengthOverride?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/compressedTexImage3D) */
    compressedTexImage3D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, imageSize: GLsizei, offset: GLintptr): void;
    compressedTexImage3D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, srcData: ArrayBufferView, srcOffset?: GLuint, srcLengthOverride?: GLuint): void;
    compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, imageSize: GLsizei, offset: GLintptr): void;
    compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, srcData: ArrayBufferView, srcOffset?: GLuint, srcLengthOverride?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/compressedTexSubImage3D) */
    compressedTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, imageSize: GLsizei, offset: GLintptr): void;
    compressedTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, srcData: ArrayBufferView, srcOffset?: GLuint, srcLengthOverride?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyBufferSubData) */
    copyBufferSubData(readTarget: GLenum, writeTarget: GLenum, readOffset: GLintptr, writeOffset: GLintptr, size: GLsizeiptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/copyTexSubImage3D) */
    copyTexSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createQuery) */
    createQuery(): WebGLQuery | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createSampler) */
    createSampler(): WebGLSampler | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createTransformFeedback) */
    createTransformFeedback(): WebGLTransformFeedback | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/createVertexArray) */
    createVertexArray(): WebGLVertexArrayObject | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteQuery) */
    deleteQuery(query: WebGLQuery | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSampler) */
    deleteSampler(sampler: WebGLSampler | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteSync) */
    deleteSync(sync: WebGLSync | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteTransformFeedback) */
    deleteTransformFeedback(tf: WebGLTransformFeedback | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/deleteVertexArray) */
    deleteVertexArray(vertexArray: WebGLVertexArrayObject | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawArraysInstanced) */
    drawArraysInstanced(mode: GLenum, first: GLint, count: GLsizei, instanceCount: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawBuffers) */
    drawBuffers(buffers: GLenum[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawElementsInstanced) */
    drawElementsInstanced(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr, instanceCount: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/drawRangeElements) */
    drawRangeElements(mode: GLenum, start: GLuint, end: GLuint, count: GLsizei, type: GLenum, offset: GLintptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endQuery) */
    endQuery(target: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/endTransformFeedback) */
    endTransformFeedback(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/fenceSync) */
    fenceSync(condition: GLenum, flags: GLbitfield): WebGLSync | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/framebufferTextureLayer) */
    framebufferTextureLayer(target: GLenum, attachment: GLenum, texture: WebGLTexture | null, level: GLint, layer: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockName) */
    getActiveUniformBlockName(program: WebGLProgram, uniformBlockIndex: GLuint): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniformBlockParameter) */
    getActiveUniformBlockParameter(program: WebGLProgram, uniformBlockIndex: GLuint, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getActiveUniforms) */
    getActiveUniforms(program: WebGLProgram, uniformIndices: GLuint[], pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getBufferSubData) */
    getBufferSubData(target: GLenum, srcByteOffset: GLintptr, dstData: ArrayBufferView, dstOffset?: GLuint, length?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getFragDataLocation) */
    getFragDataLocation(program: WebGLProgram, name: string): GLint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getIndexedParameter) */
    getIndexedParameter(target: GLenum, index: GLuint): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getInternalformatParameter) */
    getInternalformatParameter(target: GLenum, internalformat: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getQuery) */
    getQuery(target: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getQueryParameter) */
    getQueryParameter(query: WebGLQuery, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getSamplerParameter) */
    getSamplerParameter(sampler: WebGLSampler, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getSyncParameter) */
    getSyncParameter(sync: WebGLSync, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getTransformFeedbackVarying) */
    getTransformFeedbackVarying(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getUniformBlockIndex) */
    getUniformBlockIndex(program: WebGLProgram, uniformBlockName: string): GLuint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/getUniformIndices) */
    getUniformIndices(program: WebGLProgram, uniformNames: string[]): GLuint[] | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateFramebuffer) */
    invalidateFramebuffer(target: GLenum, attachments: GLenum[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/invalidateSubFramebuffer) */
    invalidateSubFramebuffer(target: GLenum, attachments: GLenum[], x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isQuery) */
    isQuery(query: WebGLQuery | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isSampler) */
    isSampler(sampler: WebGLSampler | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isSync) */
    isSync(sync: WebGLSync | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isTransformFeedback) */
    isTransformFeedback(tf: WebGLTransformFeedback | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/isVertexArray) */
    isVertexArray(vertexArray: WebGLVertexArrayObject | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/pauseTransformFeedback) */
    pauseTransformFeedback(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/readBuffer) */
    readBuffer(src: GLenum): void;
    readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, dstData: ArrayBufferView | null): void;
    readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, offset: GLintptr): void;
    readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, dstData: ArrayBufferView, dstOffset: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/renderbufferStorageMultisample) */
    renderbufferStorageMultisample(target: GLenum, samples: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/resumeTransformFeedback) */
    resumeTransformFeedback(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter) */
    samplerParameterf(sampler: WebGLSampler, pname: GLenum, param: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/samplerParameter) */
    samplerParameteri(sampler: WebGLSampler, pname: GLenum, param: GLint): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: ImageData): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: VideoFrame): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: ImageData): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, source: VideoFrame): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texImage3D) */
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: ImageData): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, source: VideoFrame): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView | null): void;
    texImage3D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, border: GLint, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage2D) */
    texStorage2D(target: GLenum, levels: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texStorage3D) */
    texStorage3D(target: GLenum, levels: GLsizei, internalformat: GLenum, width: GLsizei, height: GLsizei, depth: GLsizei): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: ImageData): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, source: VideoFrame): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: ImageData): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, source: VideoFrame): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, srcData: ArrayBufferView, srcOffset: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/texSubImage3D) */
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, pboOffset: GLintptr): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: HTMLCanvasElement): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: HTMLImageElement): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: HTMLVideoElement): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: ImageBitmap): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: ImageData): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: OffscreenCanvas): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, source: VideoFrame): void;
    texSubImage3D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, zoffset: GLint, width: GLsizei, height: GLsizei, depth: GLsizei, format: GLenum, type: GLenum, srcData: ArrayBufferView | null, srcOffset?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/transformFeedbackVaryings) */
    transformFeedbackVaryings(program: WebGLProgram, varyings: string[], bufferMode: GLenum): void;
    uniform1fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform1iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform1ui(location: WebGLUniformLocation | null, v0: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform1uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform2fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform2iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform2ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform2uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform3fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform3iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform3ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint, v2: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform3uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform4fv(location: WebGLUniformLocation | null, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniform4iv(location: WebGLUniformLocation | null, data: Int32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform4ui(location: WebGLUniformLocation | null, v0: GLuint, v1: GLuint, v2: GLuint, v3: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniform) */
    uniform4uiv(location: WebGLUniformLocation | null, data: Uint32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformBlockBinding) */
    uniformBlockBinding(program: WebGLProgram, uniformBlockIndex: GLuint, uniformBlockBinding: GLuint): void;
    uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix2x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix2x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix3x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix3x4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix4x2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/uniformMatrix) */
    uniformMatrix4x3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List, srcOffset?: GLuint, srcLength?: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribDivisor) */
    vertexAttribDivisor(index: GLuint, divisor: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
    vertexAttribI4i(index: GLuint, x: GLint, y: GLint, z: GLint, w: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
    vertexAttribI4iv(index: GLuint, values: Int32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
    vertexAttribI4ui(index: GLuint, x: GLuint, y: GLuint, z: GLuint, w: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribI) */
    vertexAttribI4uiv(index: GLuint, values: Uint32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/vertexAttribIPointer) */
    vertexAttribIPointer(index: GLuint, size: GLint, type: GLenum, stride: GLsizei, offset: GLintptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGL2RenderingContext/waitSync) */
    waitSync(sync: WebGLSync, flags: GLbitfield, timeout: GLint64): void;
    readonly READ_BUFFER: 0x0C02;
    readonly UNPACK_ROW_LENGTH: 0x0CF2;
    readonly UNPACK_SKIP_ROWS: 0x0CF3;
    readonly UNPACK_SKIP_PIXELS: 0x0CF4;
    readonly PACK_ROW_LENGTH: 0x0D02;
    readonly PACK_SKIP_ROWS: 0x0D03;
    readonly PACK_SKIP_PIXELS: 0x0D04;
    readonly COLOR: 0x1800;
    readonly DEPTH: 0x1801;
    readonly STENCIL: 0x1802;
    readonly RED: 0x1903;
    readonly RGB8: 0x8051;
    readonly RGBA8: 0x8058;
    readonly RGB10_A2: 0x8059;
    readonly TEXTURE_BINDING_3D: 0x806A;
    readonly UNPACK_SKIP_IMAGES: 0x806D;
    readonly UNPACK_IMAGE_HEIGHT: 0x806E;
    readonly TEXTURE_3D: 0x806F;
    readonly TEXTURE_WRAP_R: 0x8072;
    readonly MAX_3D_TEXTURE_SIZE: 0x8073;
    readonly UNSIGNED_INT_2_10_10_10_REV: 0x8368;
    readonly MAX_ELEMENTS_VERTICES: 0x80E8;
    readonly MAX_ELEMENTS_INDICES: 0x80E9;
    readonly TEXTURE_MIN_LOD: 0x813A;
    readonly TEXTURE_MAX_LOD: 0x813B;
    readonly TEXTURE_BASE_LEVEL: 0x813C;
    readonly TEXTURE_MAX_LEVEL: 0x813D;
    readonly MIN: 0x8007;
    readonly MAX: 0x8008;
    readonly DEPTH_COMPONENT24: 0x81A6;
    readonly MAX_TEXTURE_LOD_BIAS: 0x84FD;
    readonly TEXTURE_COMPARE_MODE: 0x884C;
    readonly TEXTURE_COMPARE_FUNC: 0x884D;
    readonly CURRENT_QUERY: 0x8865;
    readonly QUERY_RESULT: 0x8866;
    readonly QUERY_RESULT_AVAILABLE: 0x8867;
    readonly STREAM_READ: 0x88E1;
    readonly STREAM_COPY: 0x88E2;
    readonly STATIC_READ: 0x88E5;
    readonly STATIC_COPY: 0x88E6;
    readonly DYNAMIC_READ: 0x88E9;
    readonly DYNAMIC_COPY: 0x88EA;
    readonly MAX_DRAW_BUFFERS: 0x8824;
    readonly DRAW_BUFFER0: 0x8825;
    readonly DRAW_BUFFER1: 0x8826;
    readonly DRAW_BUFFER2: 0x8827;
    readonly DRAW_BUFFER3: 0x8828;
    readonly DRAW_BUFFER4: 0x8829;
    readonly DRAW_BUFFER5: 0x882A;
    readonly DRAW_BUFFER6: 0x882B;
    readonly DRAW_BUFFER7: 0x882C;
    readonly DRAW_BUFFER8: 0x882D;
    readonly DRAW_BUFFER9: 0x882E;
    readonly DRAW_BUFFER10: 0x882F;
    readonly DRAW_BUFFER11: 0x8830;
    readonly DRAW_BUFFER12: 0x8831;
    readonly DRAW_BUFFER13: 0x8832;
    readonly DRAW_BUFFER14: 0x8833;
    readonly DRAW_BUFFER15: 0x8834;
    readonly MAX_FRAGMENT_UNIFORM_COMPONENTS: 0x8B49;
    readonly MAX_VERTEX_UNIFORM_COMPONENTS: 0x8B4A;
    readonly SAMPLER_3D: 0x8B5F;
    readonly SAMPLER_2D_SHADOW: 0x8B62;
    readonly FRAGMENT_SHADER_DERIVATIVE_HINT: 0x8B8B;
    readonly PIXEL_PACK_BUFFER: 0x88EB;
    readonly PIXEL_UNPACK_BUFFER: 0x88EC;
    readonly PIXEL_PACK_BUFFER_BINDING: 0x88ED;
    readonly PIXEL_UNPACK_BUFFER_BINDING: 0x88EF;
    readonly FLOAT_MAT2x3: 0x8B65;
    readonly FLOAT_MAT2x4: 0x8B66;
    readonly FLOAT_MAT3x2: 0x8B67;
    readonly FLOAT_MAT3x4: 0x8B68;
    readonly FLOAT_MAT4x2: 0x8B69;
    readonly FLOAT_MAT4x3: 0x8B6A;
    readonly SRGB: 0x8C40;
    readonly SRGB8: 0x8C41;
    readonly SRGB8_ALPHA8: 0x8C43;
    readonly COMPARE_REF_TO_TEXTURE: 0x884E;
    readonly RGBA32F: 0x8814;
    readonly RGB32F: 0x8815;
    readonly RGBA16F: 0x881A;
    readonly RGB16F: 0x881B;
    readonly VERTEX_ATTRIB_ARRAY_INTEGER: 0x88FD;
    readonly MAX_ARRAY_TEXTURE_LAYERS: 0x88FF;
    readonly MIN_PROGRAM_TEXEL_OFFSET: 0x8904;
    readonly MAX_PROGRAM_TEXEL_OFFSET: 0x8905;
    readonly MAX_VARYING_COMPONENTS: 0x8B4B;
    readonly TEXTURE_2D_ARRAY: 0x8C1A;
    readonly TEXTURE_BINDING_2D_ARRAY: 0x8C1D;
    readonly R11F_G11F_B10F: 0x8C3A;
    readonly UNSIGNED_INT_10F_11F_11F_REV: 0x8C3B;
    readonly RGB9_E5: 0x8C3D;
    readonly UNSIGNED_INT_5_9_9_9_REV: 0x8C3E;
    readonly TRANSFORM_FEEDBACK_BUFFER_MODE: 0x8C7F;
    readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS: 0x8C80;
    readonly TRANSFORM_FEEDBACK_VARYINGS: 0x8C83;
    readonly TRANSFORM_FEEDBACK_BUFFER_START: 0x8C84;
    readonly TRANSFORM_FEEDBACK_BUFFER_SIZE: 0x8C85;
    readonly TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: 0x8C88;
    readonly RASTERIZER_DISCARD: 0x8C89;
    readonly MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS: 0x8C8A;
    readonly MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS: 0x8C8B;
    readonly INTERLEAVED_ATTRIBS: 0x8C8C;
    readonly SEPARATE_ATTRIBS: 0x8C8D;
    readonly TRANSFORM_FEEDBACK_BUFFER: 0x8C8E;
    readonly TRANSFORM_FEEDBACK_BUFFER_BINDING: 0x8C8F;
    readonly RGBA32UI: 0x8D70;
    readonly RGB32UI: 0x8D71;
    readonly RGBA16UI: 0x8D76;
    readonly RGB16UI: 0x8D77;
    readonly RGBA8UI: 0x8D7C;
    readonly RGB8UI: 0x8D7D;
    readonly RGBA32I: 0x8D82;
    readonly RGB32I: 0x8D83;
    readonly RGBA16I: 0x8D88;
    readonly RGB16I: 0x8D89;
    readonly RGBA8I: 0x8D8E;
    readonly RGB8I: 0x8D8F;
    readonly RED_INTEGER: 0x8D94;
    readonly RGB_INTEGER: 0x8D98;
    readonly RGBA_INTEGER: 0x8D99;
    readonly SAMPLER_2D_ARRAY: 0x8DC1;
    readonly SAMPLER_2D_ARRAY_SHADOW: 0x8DC4;
    readonly SAMPLER_CUBE_SHADOW: 0x8DC5;
    readonly UNSIGNED_INT_VEC2: 0x8DC6;
    readonly UNSIGNED_INT_VEC3: 0x8DC7;
    readonly UNSIGNED_INT_VEC4: 0x8DC8;
    readonly INT_SAMPLER_2D: 0x8DCA;
    readonly INT_SAMPLER_3D: 0x8DCB;
    readonly INT_SAMPLER_CUBE: 0x8DCC;
    readonly INT_SAMPLER_2D_ARRAY: 0x8DCF;
    readonly UNSIGNED_INT_SAMPLER_2D: 0x8DD2;
    readonly UNSIGNED_INT_SAMPLER_3D: 0x8DD3;
    readonly UNSIGNED_INT_SAMPLER_CUBE: 0x8DD4;
    readonly UNSIGNED_INT_SAMPLER_2D_ARRAY: 0x8DD7;
    readonly DEPTH_COMPONENT32F: 0x8CAC;
    readonly DEPTH32F_STENCIL8: 0x8CAD;
    readonly FLOAT_32_UNSIGNED_INT_24_8_REV: 0x8DAD;
    readonly FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING: 0x8210;
    readonly FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: 0x8211;
    readonly FRAMEBUFFER_ATTACHMENT_RED_SIZE: 0x8212;
    readonly FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: 0x8213;
    readonly FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: 0x8214;
    readonly FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: 0x8215;
    readonly FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: 0x8216;
    readonly FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: 0x8217;
    readonly FRAMEBUFFER_DEFAULT: 0x8218;
    readonly UNSIGNED_INT_24_8: 0x84FA;
    readonly DEPTH24_STENCIL8: 0x88F0;
    readonly UNSIGNED_NORMALIZED: 0x8C17;
    readonly DRAW_FRAMEBUFFER_BINDING: 0x8CA6;
    readonly READ_FRAMEBUFFER: 0x8CA8;
    readonly DRAW_FRAMEBUFFER: 0x8CA9;
    readonly READ_FRAMEBUFFER_BINDING: 0x8CAA;
    readonly RENDERBUFFER_SAMPLES: 0x8CAB;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER: 0x8CD4;
    readonly MAX_COLOR_ATTACHMENTS: 0x8CDF;
    readonly COLOR_ATTACHMENT1: 0x8CE1;
    readonly COLOR_ATTACHMENT2: 0x8CE2;
    readonly COLOR_ATTACHMENT3: 0x8CE3;
    readonly COLOR_ATTACHMENT4: 0x8CE4;
    readonly COLOR_ATTACHMENT5: 0x8CE5;
    readonly COLOR_ATTACHMENT6: 0x8CE6;
    readonly COLOR_ATTACHMENT7: 0x8CE7;
    readonly COLOR_ATTACHMENT8: 0x8CE8;
    readonly COLOR_ATTACHMENT9: 0x8CE9;
    readonly COLOR_ATTACHMENT10: 0x8CEA;
    readonly COLOR_ATTACHMENT11: 0x8CEB;
    readonly COLOR_ATTACHMENT12: 0x8CEC;
    readonly COLOR_ATTACHMENT13: 0x8CED;
    readonly COLOR_ATTACHMENT14: 0x8CEE;
    readonly COLOR_ATTACHMENT15: 0x8CEF;
    readonly FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: 0x8D56;
    readonly MAX_SAMPLES: 0x8D57;
    readonly HALF_FLOAT: 0x140B;
    readonly RG: 0x8227;
    readonly RG_INTEGER: 0x8228;
    readonly R8: 0x8229;
    readonly RG8: 0x822B;
    readonly R16F: 0x822D;
    readonly R32F: 0x822E;
    readonly RG16F: 0x822F;
    readonly RG32F: 0x8230;
    readonly R8I: 0x8231;
    readonly R8UI: 0x8232;
    readonly R16I: 0x8233;
    readonly R16UI: 0x8234;
    readonly R32I: 0x8235;
    readonly R32UI: 0x8236;
    readonly RG8I: 0x8237;
    readonly RG8UI: 0x8238;
    readonly RG16I: 0x8239;
    readonly RG16UI: 0x823A;
    readonly RG32I: 0x823B;
    readonly RG32UI: 0x823C;
    readonly VERTEX_ARRAY_BINDING: 0x85B5;
    readonly R8_SNORM: 0x8F94;
    readonly RG8_SNORM: 0x8F95;
    readonly RGB8_SNORM: 0x8F96;
    readonly RGBA8_SNORM: 0x8F97;
    readonly SIGNED_NORMALIZED: 0x8F9C;
    readonly COPY_READ_BUFFER: 0x8F36;
    readonly COPY_WRITE_BUFFER: 0x8F37;
    readonly COPY_READ_BUFFER_BINDING: 0x8F36;
    readonly COPY_WRITE_BUFFER_BINDING: 0x8F37;
    readonly UNIFORM_BUFFER: 0x8A11;
    readonly UNIFORM_BUFFER_BINDING: 0x8A28;
    readonly UNIFORM_BUFFER_START: 0x8A29;
    readonly UNIFORM_BUFFER_SIZE: 0x8A2A;
    readonly MAX_VERTEX_UNIFORM_BLOCKS: 0x8A2B;
    readonly MAX_FRAGMENT_UNIFORM_BLOCKS: 0x8A2D;
    readonly MAX_COMBINED_UNIFORM_BLOCKS: 0x8A2E;
    readonly MAX_UNIFORM_BUFFER_BINDINGS: 0x8A2F;
    readonly MAX_UNIFORM_BLOCK_SIZE: 0x8A30;
    readonly MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS: 0x8A31;
    readonly MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS: 0x8A33;
    readonly UNIFORM_BUFFER_OFFSET_ALIGNMENT: 0x8A34;
    readonly ACTIVE_UNIFORM_BLOCKS: 0x8A36;
    readonly UNIFORM_TYPE: 0x8A37;
    readonly UNIFORM_SIZE: 0x8A38;
    readonly UNIFORM_BLOCK_INDEX: 0x8A3A;
    readonly UNIFORM_OFFSET: 0x8A3B;
    readonly UNIFORM_ARRAY_STRIDE: 0x8A3C;
    readonly UNIFORM_MATRIX_STRIDE: 0x8A3D;
    readonly UNIFORM_IS_ROW_MAJOR: 0x8A3E;
    readonly UNIFORM_BLOCK_BINDING: 0x8A3F;
    readonly UNIFORM_BLOCK_DATA_SIZE: 0x8A40;
    readonly UNIFORM_BLOCK_ACTIVE_UNIFORMS: 0x8A42;
    readonly UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES: 0x8A43;
    readonly UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER: 0x8A44;
    readonly UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER: 0x8A46;
    readonly INVALID_INDEX: 0xFFFFFFFF;
    readonly MAX_VERTEX_OUTPUT_COMPONENTS: 0x9122;
    readonly MAX_FRAGMENT_INPUT_COMPONENTS: 0x9125;
    readonly MAX_SERVER_WAIT_TIMEOUT: 0x9111;
    readonly OBJECT_TYPE: 0x9112;
    readonly SYNC_CONDITION: 0x9113;
    readonly SYNC_STATUS: 0x9114;
    readonly SYNC_FLAGS: 0x9115;
    readonly SYNC_FENCE: 0x9116;
    readonly SYNC_GPU_COMMANDS_COMPLETE: 0x9117;
    readonly UNSIGNALED: 0x9118;
    readonly SIGNALED: 0x9119;
    readonly ALREADY_SIGNALED: 0x911A;
    readonly TIMEOUT_EXPIRED: 0x911B;
    readonly CONDITION_SATISFIED: 0x911C;
    readonly WAIT_FAILED: 0x911D;
    readonly SYNC_FLUSH_COMMANDS_BIT: 0x00000001;
    readonly VERTEX_ATTRIB_ARRAY_DIVISOR: 0x88FE;
    readonly ANY_SAMPLES_PASSED: 0x8C2F;
    readonly ANY_SAMPLES_PASSED_CONSERVATIVE: 0x8D6A;
    readonly SAMPLER_BINDING: 0x8919;
    readonly RGB10_A2UI: 0x906F;
    readonly INT_2_10_10_10_REV: 0x8D9F;
    readonly TRANSFORM_FEEDBACK: 0x8E22;
    readonly TRANSFORM_FEEDBACK_PAUSED: 0x8E23;
    readonly TRANSFORM_FEEDBACK_ACTIVE: 0x8E24;
    readonly TRANSFORM_FEEDBACK_BINDING: 0x8E25;
    readonly TEXTURE_IMMUTABLE_FORMAT: 0x912F;
    readonly MAX_ELEMENT_INDEX: 0x8D6B;
    readonly TEXTURE_IMMUTABLE_LEVELS: 0x82DF;
    readonly TIMEOUT_IGNORED: -1;
    readonly MAX_CLIENT_WAIT_TIMEOUT_WEBGL: 0x9247;
}

/**
 * Part of the WebGL API and represents the information returned by calling the WebGLRenderingContext.getActiveAttrib() and WebGLRenderingContext.getActiveUniform() methods.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo)
 */
interface WebGLActiveInfo {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/name) */
    readonly name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/size) */
    readonly size: GLint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLActiveInfo/type) */
    readonly type: GLenum;
}

declare var WebGLActiveInfo: {
    prototype: WebGLActiveInfo;
    new(): WebGLActiveInfo;
    isInstance(obj): obj is WebGLActiveInfo;
};

/**
 * Part of the WebGL API and represents an opaque buffer object storing data such as vertices or colors.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLBuffer)
 */
interface WebGLBuffer {
}

declare var WebGLBuffer: {
    prototype: WebGLBuffer;
    new(): WebGLBuffer;
    isInstance(obj): obj is WebGLBuffer;
};

/**
 * The WebContextEvent interface is part of the WebGL API and is an interface for an event that is generated in response to a status change to the WebGL rendering context.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLContextEvent)
 */
interface WebGLContextEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLContextEvent/statusMessage) */
    readonly statusMessage: string;
}

declare var WebGLContextEvent: {
    prototype: WebGLContextEvent;
    new(type: string, eventInit?: WebGLContextEventInit): WebGLContextEvent;
    isInstance(obj): obj is WebGLContextEvent;
};

/**
 * Part of the WebGL API and represents a collection of buffers that serve as a rendering destination.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLFramebuffer)
 */
interface WebGLFramebuffer {
}

declare var WebGLFramebuffer: {
    prototype: WebGLFramebuffer;
    new(): WebGLFramebuffer;
    isInstance(obj): obj is WebGLFramebuffer;
};

/**
 * The WebGLProgram is part of the WebGL API and is a combination of two compiled WebGLShaders consisting of a vertex shader and a fragment shader (both written in GLSL).
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLProgram)
 */
interface WebGLProgram {
}

declare var WebGLProgram: {
    prototype: WebGLProgram;
    new(): WebGLProgram;
    isInstance(obj): obj is WebGLProgram;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLQuery) */
interface WebGLQuery {
}

declare var WebGLQuery: {
    prototype: WebGLQuery;
    new(): WebGLQuery;
    isInstance(obj): obj is WebGLQuery;
};

/**
 * Part of the WebGL API and represents a buffer that can contain an image, or can be source or target of an rendering operation.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderbuffer)
 */
interface WebGLRenderbuffer {
}

declare var WebGLRenderbuffer: {
    prototype: WebGLRenderbuffer;
    new(): WebGLRenderbuffer;
    isInstance(obj): obj is WebGLRenderbuffer;
};

/**
 * Provides an interface to the OpenGL ES 2.0 graphics rendering context for the drawing surface of an HTML <canvas> element.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext)
 */
interface WebGLRenderingContext extends WebGLRenderingContextBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferData) */
    bufferData(target: GLenum, size: GLsizeiptr, usage: GLenum): void;
    bufferData(target: GLenum, data: ArrayBuffer | null, usage: GLenum): void;
    bufferData(target: GLenum, data: ArrayBufferView, usage: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bufferSubData) */
    bufferSubData(target: GLenum, offset: GLintptr, data: ArrayBuffer): void;
    bufferSubData(target: GLenum, offset: GLintptr, data: ArrayBufferView): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexImage2D) */
    compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, data: ArrayBufferView): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compressedTexSubImage2D) */
    compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, data: ArrayBufferView): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/readPixels) */
    readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texImage2D) */
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, pixels: ImageBitmap): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, pixels: ImageData): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, image: HTMLImageElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, canvas: HTMLCanvasElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, video: HTMLVideoElement): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, canvas: OffscreenCanvas): void;
    texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, videoFrame: VideoFrame): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texSubImage2D) */
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView | null): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, pixels: ImageBitmap): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, pixels: ImageData): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, image: HTMLImageElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, canvas: HTMLCanvasElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, video: HTMLVideoElement): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, canvas: OffscreenCanvas): void;
    texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, format: GLenum, type: GLenum, videoFrame: VideoFrame): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform1fv(location: WebGLUniformLocation | null, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform1iv(location: WebGLUniformLocation | null, data: Int32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform2fv(location: WebGLUniformLocation | null, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform2iv(location: WebGLUniformLocation | null, data: Int32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform3fv(location: WebGLUniformLocation | null, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform3iv(location: WebGLUniformLocation | null, data: Int32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform4fv(location: WebGLUniformLocation | null, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform4iv(location: WebGLUniformLocation | null, data: Int32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
    uniformMatrix2fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
    uniformMatrix3fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniformMatrix) */
    uniformMatrix4fv(location: WebGLUniformLocation | null, transpose: GLboolean, data: Float32List): void;
}

declare var WebGLRenderingContext: {
    prototype: WebGLRenderingContext;
    new(): WebGLRenderingContext;
    readonly DEPTH_BUFFER_BIT: 0x00000100;
    readonly STENCIL_BUFFER_BIT: 0x00000400;
    readonly COLOR_BUFFER_BIT: 0x00004000;
    readonly POINTS: 0x0000;
    readonly LINES: 0x0001;
    readonly LINE_LOOP: 0x0002;
    readonly LINE_STRIP: 0x0003;
    readonly TRIANGLES: 0x0004;
    readonly TRIANGLE_STRIP: 0x0005;
    readonly TRIANGLE_FAN: 0x0006;
    readonly ZERO: 0;
    readonly ONE: 1;
    readonly SRC_COLOR: 0x0300;
    readonly ONE_MINUS_SRC_COLOR: 0x0301;
    readonly SRC_ALPHA: 0x0302;
    readonly ONE_MINUS_SRC_ALPHA: 0x0303;
    readonly DST_ALPHA: 0x0304;
    readonly ONE_MINUS_DST_ALPHA: 0x0305;
    readonly DST_COLOR: 0x0306;
    readonly ONE_MINUS_DST_COLOR: 0x0307;
    readonly SRC_ALPHA_SATURATE: 0x0308;
    readonly FUNC_ADD: 0x8006;
    readonly BLEND_EQUATION: 0x8009;
    readonly BLEND_EQUATION_RGB: 0x8009;
    readonly BLEND_EQUATION_ALPHA: 0x883D;
    readonly FUNC_SUBTRACT: 0x800A;
    readonly FUNC_REVERSE_SUBTRACT: 0x800B;
    readonly BLEND_DST_RGB: 0x80C8;
    readonly BLEND_SRC_RGB: 0x80C9;
    readonly BLEND_DST_ALPHA: 0x80CA;
    readonly BLEND_SRC_ALPHA: 0x80CB;
    readonly CONSTANT_COLOR: 0x8001;
    readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
    readonly CONSTANT_ALPHA: 0x8003;
    readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
    readonly BLEND_COLOR: 0x8005;
    readonly ARRAY_BUFFER: 0x8892;
    readonly ELEMENT_ARRAY_BUFFER: 0x8893;
    readonly ARRAY_BUFFER_BINDING: 0x8894;
    readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
    readonly STREAM_DRAW: 0x88E0;
    readonly STATIC_DRAW: 0x88E4;
    readonly DYNAMIC_DRAW: 0x88E8;
    readonly BUFFER_SIZE: 0x8764;
    readonly BUFFER_USAGE: 0x8765;
    readonly CURRENT_VERTEX_ATTRIB: 0x8626;
    readonly FRONT: 0x0404;
    readonly BACK: 0x0405;
    readonly FRONT_AND_BACK: 0x0408;
    readonly CULL_FACE: 0x0B44;
    readonly BLEND: 0x0BE2;
    readonly DITHER: 0x0BD0;
    readonly STENCIL_TEST: 0x0B90;
    readonly DEPTH_TEST: 0x0B71;
    readonly SCISSOR_TEST: 0x0C11;
    readonly POLYGON_OFFSET_FILL: 0x8037;
    readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
    readonly SAMPLE_COVERAGE: 0x80A0;
    readonly NO_ERROR: 0;
    readonly INVALID_ENUM: 0x0500;
    readonly INVALID_VALUE: 0x0501;
    readonly INVALID_OPERATION: 0x0502;
    readonly OUT_OF_MEMORY: 0x0505;
    readonly CW: 0x0900;
    readonly CCW: 0x0901;
    readonly LINE_WIDTH: 0x0B21;
    readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
    readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
    readonly CULL_FACE_MODE: 0x0B45;
    readonly FRONT_FACE: 0x0B46;
    readonly DEPTH_RANGE: 0x0B70;
    readonly DEPTH_WRITEMASK: 0x0B72;
    readonly DEPTH_CLEAR_VALUE: 0x0B73;
    readonly DEPTH_FUNC: 0x0B74;
    readonly STENCIL_CLEAR_VALUE: 0x0B91;
    readonly STENCIL_FUNC: 0x0B92;
    readonly STENCIL_FAIL: 0x0B94;
    readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
    readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
    readonly STENCIL_REF: 0x0B97;
    readonly STENCIL_VALUE_MASK: 0x0B93;
    readonly STENCIL_WRITEMASK: 0x0B98;
    readonly STENCIL_BACK_FUNC: 0x8800;
    readonly STENCIL_BACK_FAIL: 0x8801;
    readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
    readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
    readonly STENCIL_BACK_REF: 0x8CA3;
    readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
    readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
    readonly VIEWPORT: 0x0BA2;
    readonly SCISSOR_BOX: 0x0C10;
    readonly COLOR_CLEAR_VALUE: 0x0C22;
    readonly COLOR_WRITEMASK: 0x0C23;
    readonly UNPACK_ALIGNMENT: 0x0CF5;
    readonly PACK_ALIGNMENT: 0x0D05;
    readonly MAX_TEXTURE_SIZE: 0x0D33;
    readonly MAX_VIEWPORT_DIMS: 0x0D3A;
    readonly SUBPIXEL_BITS: 0x0D50;
    readonly RED_BITS: 0x0D52;
    readonly GREEN_BITS: 0x0D53;
    readonly BLUE_BITS: 0x0D54;
    readonly ALPHA_BITS: 0x0D55;
    readonly DEPTH_BITS: 0x0D56;
    readonly STENCIL_BITS: 0x0D57;
    readonly POLYGON_OFFSET_UNITS: 0x2A00;
    readonly POLYGON_OFFSET_FACTOR: 0x8038;
    readonly TEXTURE_BINDING_2D: 0x8069;
    readonly SAMPLE_BUFFERS: 0x80A8;
    readonly SAMPLES: 0x80A9;
    readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
    readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
    readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
    readonly DONT_CARE: 0x1100;
    readonly FASTEST: 0x1101;
    readonly NICEST: 0x1102;
    readonly GENERATE_MIPMAP_HINT: 0x8192;
    readonly BYTE: 0x1400;
    readonly UNSIGNED_BYTE: 0x1401;
    readonly SHORT: 0x1402;
    readonly UNSIGNED_SHORT: 0x1403;
    readonly INT: 0x1404;
    readonly UNSIGNED_INT: 0x1405;
    readonly FLOAT: 0x1406;
    readonly DEPTH_COMPONENT: 0x1902;
    readonly ALPHA: 0x1906;
    readonly RGB: 0x1907;
    readonly RGBA: 0x1908;
    readonly LUMINANCE: 0x1909;
    readonly LUMINANCE_ALPHA: 0x190A;
    readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
    readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
    readonly UNSIGNED_SHORT_5_6_5: 0x8363;
    readonly FRAGMENT_SHADER: 0x8B30;
    readonly VERTEX_SHADER: 0x8B31;
    readonly MAX_VERTEX_ATTRIBS: 0x8869;
    readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
    readonly MAX_VARYING_VECTORS: 0x8DFC;
    readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
    readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
    readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
    readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
    readonly SHADER_TYPE: 0x8B4F;
    readonly DELETE_STATUS: 0x8B80;
    readonly LINK_STATUS: 0x8B82;
    readonly VALIDATE_STATUS: 0x8B83;
    readonly ATTACHED_SHADERS: 0x8B85;
    readonly ACTIVE_UNIFORMS: 0x8B86;
    readonly ACTIVE_ATTRIBUTES: 0x8B89;
    readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
    readonly CURRENT_PROGRAM: 0x8B8D;
    readonly NEVER: 0x0200;
    readonly LESS: 0x0201;
    readonly EQUAL: 0x0202;
    readonly LEQUAL: 0x0203;
    readonly GREATER: 0x0204;
    readonly NOTEQUAL: 0x0205;
    readonly GEQUAL: 0x0206;
    readonly ALWAYS: 0x0207;
    readonly KEEP: 0x1E00;
    readonly REPLACE: 0x1E01;
    readonly INCR: 0x1E02;
    readonly DECR: 0x1E03;
    readonly INVERT: 0x150A;
    readonly INCR_WRAP: 0x8507;
    readonly DECR_WRAP: 0x8508;
    readonly VENDOR: 0x1F00;
    readonly RENDERER: 0x1F01;
    readonly VERSION: 0x1F02;
    readonly NEAREST: 0x2600;
    readonly LINEAR: 0x2601;
    readonly NEAREST_MIPMAP_NEAREST: 0x2700;
    readonly LINEAR_MIPMAP_NEAREST: 0x2701;
    readonly NEAREST_MIPMAP_LINEAR: 0x2702;
    readonly LINEAR_MIPMAP_LINEAR: 0x2703;
    readonly TEXTURE_MAG_FILTER: 0x2800;
    readonly TEXTURE_MIN_FILTER: 0x2801;
    readonly TEXTURE_WRAP_S: 0x2802;
    readonly TEXTURE_WRAP_T: 0x2803;
    readonly TEXTURE_2D: 0x0DE1;
    readonly TEXTURE: 0x1702;
    readonly TEXTURE_CUBE_MAP: 0x8513;
    readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
    readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
    readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
    readonly TEXTURE0: 0x84C0;
    readonly TEXTURE1: 0x84C1;
    readonly TEXTURE2: 0x84C2;
    readonly TEXTURE3: 0x84C3;
    readonly TEXTURE4: 0x84C4;
    readonly TEXTURE5: 0x84C5;
    readonly TEXTURE6: 0x84C6;
    readonly TEXTURE7: 0x84C7;
    readonly TEXTURE8: 0x84C8;
    readonly TEXTURE9: 0x84C9;
    readonly TEXTURE10: 0x84CA;
    readonly TEXTURE11: 0x84CB;
    readonly TEXTURE12: 0x84CC;
    readonly TEXTURE13: 0x84CD;
    readonly TEXTURE14: 0x84CE;
    readonly TEXTURE15: 0x84CF;
    readonly TEXTURE16: 0x84D0;
    readonly TEXTURE17: 0x84D1;
    readonly TEXTURE18: 0x84D2;
    readonly TEXTURE19: 0x84D3;
    readonly TEXTURE20: 0x84D4;
    readonly TEXTURE21: 0x84D5;
    readonly TEXTURE22: 0x84D6;
    readonly TEXTURE23: 0x84D7;
    readonly TEXTURE24: 0x84D8;
    readonly TEXTURE25: 0x84D9;
    readonly TEXTURE26: 0x84DA;
    readonly TEXTURE27: 0x84DB;
    readonly TEXTURE28: 0x84DC;
    readonly TEXTURE29: 0x84DD;
    readonly TEXTURE30: 0x84DE;
    readonly TEXTURE31: 0x84DF;
    readonly ACTIVE_TEXTURE: 0x84E0;
    readonly REPEAT: 0x2901;
    readonly CLAMP_TO_EDGE: 0x812F;
    readonly MIRRORED_REPEAT: 0x8370;
    readonly FLOAT_VEC2: 0x8B50;
    readonly FLOAT_VEC3: 0x8B51;
    readonly FLOAT_VEC4: 0x8B52;
    readonly INT_VEC2: 0x8B53;
    readonly INT_VEC3: 0x8B54;
    readonly INT_VEC4: 0x8B55;
    readonly BOOL: 0x8B56;
    readonly BOOL_VEC2: 0x8B57;
    readonly BOOL_VEC3: 0x8B58;
    readonly BOOL_VEC4: 0x8B59;
    readonly FLOAT_MAT2: 0x8B5A;
    readonly FLOAT_MAT3: 0x8B5B;
    readonly FLOAT_MAT4: 0x8B5C;
    readonly SAMPLER_2D: 0x8B5E;
    readonly SAMPLER_CUBE: 0x8B60;
    readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
    readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
    readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
    readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
    readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
    readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
    readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
    readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
    readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
    readonly COMPILE_STATUS: 0x8B81;
    readonly LOW_FLOAT: 0x8DF0;
    readonly MEDIUM_FLOAT: 0x8DF1;
    readonly HIGH_FLOAT: 0x8DF2;
    readonly LOW_INT: 0x8DF3;
    readonly MEDIUM_INT: 0x8DF4;
    readonly HIGH_INT: 0x8DF5;
    readonly FRAMEBUFFER: 0x8D40;
    readonly RENDERBUFFER: 0x8D41;
    readonly RGBA4: 0x8056;
    readonly RGB5_A1: 0x8057;
    readonly RGB565: 0x8D62;
    readonly DEPTH_COMPONENT16: 0x81A5;
    readonly STENCIL_INDEX8: 0x8D48;
    readonly DEPTH_STENCIL: 0x84F9;
    readonly RENDERBUFFER_WIDTH: 0x8D42;
    readonly RENDERBUFFER_HEIGHT: 0x8D43;
    readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
    readonly RENDERBUFFER_RED_SIZE: 0x8D50;
    readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
    readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
    readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
    readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
    readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
    readonly COLOR_ATTACHMENT0: 0x8CE0;
    readonly DEPTH_ATTACHMENT: 0x8D00;
    readonly STENCIL_ATTACHMENT: 0x8D20;
    readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
    readonly NONE: 0;
    readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
    readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
    readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
    readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
    readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
    readonly FRAMEBUFFER_BINDING: 0x8CA6;
    readonly RENDERBUFFER_BINDING: 0x8CA7;
    readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
    readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
    readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
    readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
    readonly CONTEXT_LOST_WEBGL: 0x9242;
    readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
    readonly BROWSER_DEFAULT_WEBGL: 0x9244;
    isInstance(obj): obj is WebGLRenderingContext;
};

interface WebGLRenderingContextBase {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/canvas) */
    readonly canvas: CanvasSource | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferHeight) */
    readonly drawingBufferHeight: GLsizei;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawingBufferWidth) */
    readonly drawingBufferWidth: GLsizei;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/activeTexture) */
    activeTexture(texture: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/attachShader) */
    attachShader(program: WebGLProgram, shader: WebGLShader): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindAttribLocation) */
    bindAttribLocation(program: WebGLProgram, index: GLuint, name: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindBuffer) */
    bindBuffer(target: GLenum, buffer: WebGLBuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindFramebuffer) */
    bindFramebuffer(target: GLenum, framebuffer: WebGLFramebuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindRenderbuffer) */
    bindRenderbuffer(target: GLenum, renderbuffer: WebGLRenderbuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/bindTexture) */
    bindTexture(target: GLenum, texture: WebGLTexture | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendColor) */
    blendColor(red: GLfloat, green: GLfloat, blue: GLfloat, alpha: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquation) */
    blendEquation(mode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendEquationSeparate) */
    blendEquationSeparate(modeRGB: GLenum, modeAlpha: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFunc) */
    blendFunc(sfactor: GLenum, dfactor: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/blendFuncSeparate) */
    blendFuncSeparate(srcRGB: GLenum, dstRGB: GLenum, srcAlpha: GLenum, dstAlpha: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/checkFramebufferStatus) */
    checkFramebufferStatus(target: GLenum): GLenum;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clear) */
    clear(mask: GLbitfield): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearColor) */
    clearColor(red: GLfloat, green: GLfloat, blue: GLfloat, alpha: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearDepth) */
    clearDepth(depth: GLclampf): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/clearStencil) */
    clearStencil(s: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/colorMask) */
    colorMask(red: GLboolean, green: GLboolean, blue: GLboolean, alpha: GLboolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/compileShader) */
    compileShader(shader: WebGLShader): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexImage2D) */
    copyTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, x: GLint, y: GLint, width: GLsizei, height: GLsizei, border: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/copyTexSubImage2D) */
    copyTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createBuffer) */
    createBuffer(): WebGLBuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createFramebuffer) */
    createFramebuffer(): WebGLFramebuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createProgram) */
    createProgram(): WebGLProgram | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createRenderbuffer) */
    createRenderbuffer(): WebGLRenderbuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createShader) */
    createShader(type: GLenum): WebGLShader | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/createTexture) */
    createTexture(): WebGLTexture | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/cullFace) */
    cullFace(mode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteBuffer) */
    deleteBuffer(buffer: WebGLBuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteFramebuffer) */
    deleteFramebuffer(framebuffer: WebGLFramebuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteProgram) */
    deleteProgram(program: WebGLProgram | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteRenderbuffer) */
    deleteRenderbuffer(renderbuffer: WebGLRenderbuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteShader) */
    deleteShader(shader: WebGLShader | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/deleteTexture) */
    deleteTexture(texture: WebGLTexture | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthFunc) */
    depthFunc(func: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthMask) */
    depthMask(flag: GLboolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/depthRange) */
    depthRange(zNear: GLclampf, zFar: GLclampf): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/detachShader) */
    detachShader(program: WebGLProgram, shader: WebGLShader): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disable) */
    disable(cap: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/disableVertexAttribArray) */
    disableVertexAttribArray(index: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawArrays) */
    drawArrays(mode: GLenum, first: GLint, count: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/drawElements) */
    drawElements(mode: GLenum, count: GLsizei, type: GLenum, offset: GLintptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enable) */
    enable(cap: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/enableVertexAttribArray) */
    enableVertexAttribArray(index: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/finish) */
    finish(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/flush) */
    flush(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferRenderbuffer) */
    framebufferRenderbuffer(target: GLenum, attachment: GLenum, renderbuffertarget: GLenum, renderbuffer: WebGLRenderbuffer | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/framebufferTexture2D) */
    framebufferTexture2D(target: GLenum, attachment: GLenum, textarget: GLenum, texture: WebGLTexture | null, level: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/frontFace) */
    frontFace(mode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/generateMipmap) */
    generateMipmap(target: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveAttrib) */
    getActiveAttrib(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getActiveUniform) */
    getActiveUniform(program: WebGLProgram, index: GLuint): WebGLActiveInfo | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttachedShaders) */
    getAttachedShaders(program: WebGLProgram): WebGLShader[] | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getAttribLocation) */
    getAttribLocation(program: WebGLProgram, name: string): GLint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getBufferParameter) */
    getBufferParameter(target: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getContextAttributes) */
    getContextAttributes(): WebGLContextAttributes | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getError) */
    getError(): GLenum;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getExtension) */
    getExtension(name: string): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getFramebufferAttachmentParameter) */
    getFramebufferAttachmentParameter(target: GLenum, attachment: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getParameter) */
    getParameter(pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramInfoLog) */
    getProgramInfoLog(program: WebGLProgram): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getProgramParameter) */
    getProgramParameter(program: WebGLProgram, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getRenderbufferParameter) */
    getRenderbufferParameter(target: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderInfoLog) */
    getShaderInfoLog(shader: WebGLShader): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderParameter) */
    getShaderParameter(shader: WebGLShader, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderPrecisionFormat) */
    getShaderPrecisionFormat(shadertype: GLenum, precisiontype: GLenum): WebGLShaderPrecisionFormat | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getShaderSource) */
    getShaderSource(shader: WebGLShader): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getSupportedExtensions) */
    getSupportedExtensions(): string[] | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getTexParameter) */
    getTexParameter(target: GLenum, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getUniform) */
    getUniform(program: WebGLProgram, location: WebGLUniformLocation): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getUniformLocation) */
    getUniformLocation(program: WebGLProgram, name: string): WebGLUniformLocation | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getVertexAttrib) */
    getVertexAttrib(index: GLuint, pname: GLenum): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/getVertexAttribOffset) */
    getVertexAttribOffset(index: GLuint, pname: GLenum): GLintptr;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/hint) */
    hint(target: GLenum, mode: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isBuffer) */
    isBuffer(buffer: WebGLBuffer | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isContextLost) */
    isContextLost(): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isEnabled) */
    isEnabled(cap: GLenum): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isFramebuffer) */
    isFramebuffer(framebuffer: WebGLFramebuffer | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isProgram) */
    isProgram(program: WebGLProgram | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isRenderbuffer) */
    isRenderbuffer(renderbuffer: WebGLRenderbuffer | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isShader) */
    isShader(shader: WebGLShader | null): GLboolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/isTexture) */
    isTexture(texture: WebGLTexture | null): GLboolean;
    lineWidth(width: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/linkProgram) */
    linkProgram(program: WebGLProgram): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/makeXRCompatible) */
    makeXRCompatible(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/pixelStorei) */
    pixelStorei(pname: GLenum, param: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/polygonOffset) */
    polygonOffset(factor: GLfloat, units: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/renderbufferStorage) */
    renderbufferStorage(target: GLenum, internalformat: GLenum, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/sampleCoverage) */
    sampleCoverage(value: GLclampf, invert: GLboolean): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/scissor) */
    scissor(x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/shaderSource) */
    shaderSource(shader: WebGLShader, source: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFunc) */
    stencilFunc(func: GLenum, ref: GLint, mask: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilFuncSeparate) */
    stencilFuncSeparate(face: GLenum, func: GLenum, ref: GLint, mask: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMask) */
    stencilMask(mask: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilMaskSeparate) */
    stencilMaskSeparate(face: GLenum, mask: GLuint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOp) */
    stencilOp(fail: GLenum, zfail: GLenum, zpass: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/stencilOpSeparate) */
    stencilOpSeparate(face: GLenum, fail: GLenum, zfail: GLenum, zpass: GLenum): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texParameter) */
    texParameterf(target: GLenum, pname: GLenum, param: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/texParameter) */
    texParameteri(target: GLenum, pname: GLenum, param: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform1f(location: WebGLUniformLocation | null, x: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform1i(location: WebGLUniformLocation | null, x: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform2f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform2i(location: WebGLUniformLocation | null, x: GLint, y: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform3f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat, z: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform3i(location: WebGLUniformLocation | null, x: GLint, y: GLint, z: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform4f(location: WebGLUniformLocation | null, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/uniform) */
    uniform4i(location: WebGLUniformLocation | null, x: GLint, y: GLint, z: GLint, w: GLint): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/useProgram) */
    useProgram(program: WebGLProgram | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/validateProgram) */
    validateProgram(program: WebGLProgram): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib1f(indx: GLuint, x: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib1fv(indx: GLuint, values: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib2f(indx: GLuint, x: GLfloat, y: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib2fv(indx: GLuint, values: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib3f(indx: GLuint, x: GLfloat, y: GLfloat, z: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib3fv(indx: GLuint, values: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib4f(indx: GLuint, x: GLfloat, y: GLfloat, z: GLfloat, w: GLfloat): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttrib) */
    vertexAttrib4fv(indx: GLuint, values: Float32List): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/vertexAttribPointer) */
    vertexAttribPointer(indx: GLuint, size: GLint, type: GLenum, normalized: GLboolean, stride: GLsizei, offset: GLintptr): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLRenderingContext/viewport) */
    viewport(x: GLint, y: GLint, width: GLsizei, height: GLsizei): void;
    readonly DEPTH_BUFFER_BIT: 0x00000100;
    readonly STENCIL_BUFFER_BIT: 0x00000400;
    readonly COLOR_BUFFER_BIT: 0x00004000;
    readonly POINTS: 0x0000;
    readonly LINES: 0x0001;
    readonly LINE_LOOP: 0x0002;
    readonly LINE_STRIP: 0x0003;
    readonly TRIANGLES: 0x0004;
    readonly TRIANGLE_STRIP: 0x0005;
    readonly TRIANGLE_FAN: 0x0006;
    readonly ZERO: 0;
    readonly ONE: 1;
    readonly SRC_COLOR: 0x0300;
    readonly ONE_MINUS_SRC_COLOR: 0x0301;
    readonly SRC_ALPHA: 0x0302;
    readonly ONE_MINUS_SRC_ALPHA: 0x0303;
    readonly DST_ALPHA: 0x0304;
    readonly ONE_MINUS_DST_ALPHA: 0x0305;
    readonly DST_COLOR: 0x0306;
    readonly ONE_MINUS_DST_COLOR: 0x0307;
    readonly SRC_ALPHA_SATURATE: 0x0308;
    readonly FUNC_ADD: 0x8006;
    readonly BLEND_EQUATION: 0x8009;
    readonly BLEND_EQUATION_RGB: 0x8009;
    readonly BLEND_EQUATION_ALPHA: 0x883D;
    readonly FUNC_SUBTRACT: 0x800A;
    readonly FUNC_REVERSE_SUBTRACT: 0x800B;
    readonly BLEND_DST_RGB: 0x80C8;
    readonly BLEND_SRC_RGB: 0x80C9;
    readonly BLEND_DST_ALPHA: 0x80CA;
    readonly BLEND_SRC_ALPHA: 0x80CB;
    readonly CONSTANT_COLOR: 0x8001;
    readonly ONE_MINUS_CONSTANT_COLOR: 0x8002;
    readonly CONSTANT_ALPHA: 0x8003;
    readonly ONE_MINUS_CONSTANT_ALPHA: 0x8004;
    readonly BLEND_COLOR: 0x8005;
    readonly ARRAY_BUFFER: 0x8892;
    readonly ELEMENT_ARRAY_BUFFER: 0x8893;
    readonly ARRAY_BUFFER_BINDING: 0x8894;
    readonly ELEMENT_ARRAY_BUFFER_BINDING: 0x8895;
    readonly STREAM_DRAW: 0x88E0;
    readonly STATIC_DRAW: 0x88E4;
    readonly DYNAMIC_DRAW: 0x88E8;
    readonly BUFFER_SIZE: 0x8764;
    readonly BUFFER_USAGE: 0x8765;
    readonly CURRENT_VERTEX_ATTRIB: 0x8626;
    readonly FRONT: 0x0404;
    readonly BACK: 0x0405;
    readonly FRONT_AND_BACK: 0x0408;
    readonly CULL_FACE: 0x0B44;
    readonly BLEND: 0x0BE2;
    readonly DITHER: 0x0BD0;
    readonly STENCIL_TEST: 0x0B90;
    readonly DEPTH_TEST: 0x0B71;
    readonly SCISSOR_TEST: 0x0C11;
    readonly POLYGON_OFFSET_FILL: 0x8037;
    readonly SAMPLE_ALPHA_TO_COVERAGE: 0x809E;
    readonly SAMPLE_COVERAGE: 0x80A0;
    readonly NO_ERROR: 0;
    readonly INVALID_ENUM: 0x0500;
    readonly INVALID_VALUE: 0x0501;
    readonly INVALID_OPERATION: 0x0502;
    readonly OUT_OF_MEMORY: 0x0505;
    readonly CW: 0x0900;
    readonly CCW: 0x0901;
    readonly LINE_WIDTH: 0x0B21;
    readonly ALIASED_POINT_SIZE_RANGE: 0x846D;
    readonly ALIASED_LINE_WIDTH_RANGE: 0x846E;
    readonly CULL_FACE_MODE: 0x0B45;
    readonly FRONT_FACE: 0x0B46;
    readonly DEPTH_RANGE: 0x0B70;
    readonly DEPTH_WRITEMASK: 0x0B72;
    readonly DEPTH_CLEAR_VALUE: 0x0B73;
    readonly DEPTH_FUNC: 0x0B74;
    readonly STENCIL_CLEAR_VALUE: 0x0B91;
    readonly STENCIL_FUNC: 0x0B92;
    readonly STENCIL_FAIL: 0x0B94;
    readonly STENCIL_PASS_DEPTH_FAIL: 0x0B95;
    readonly STENCIL_PASS_DEPTH_PASS: 0x0B96;
    readonly STENCIL_REF: 0x0B97;
    readonly STENCIL_VALUE_MASK: 0x0B93;
    readonly STENCIL_WRITEMASK: 0x0B98;
    readonly STENCIL_BACK_FUNC: 0x8800;
    readonly STENCIL_BACK_FAIL: 0x8801;
    readonly STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802;
    readonly STENCIL_BACK_PASS_DEPTH_PASS: 0x8803;
    readonly STENCIL_BACK_REF: 0x8CA3;
    readonly STENCIL_BACK_VALUE_MASK: 0x8CA4;
    readonly STENCIL_BACK_WRITEMASK: 0x8CA5;
    readonly VIEWPORT: 0x0BA2;
    readonly SCISSOR_BOX: 0x0C10;
    readonly COLOR_CLEAR_VALUE: 0x0C22;
    readonly COLOR_WRITEMASK: 0x0C23;
    readonly UNPACK_ALIGNMENT: 0x0CF5;
    readonly PACK_ALIGNMENT: 0x0D05;
    readonly MAX_TEXTURE_SIZE: 0x0D33;
    readonly MAX_VIEWPORT_DIMS: 0x0D3A;
    readonly SUBPIXEL_BITS: 0x0D50;
    readonly RED_BITS: 0x0D52;
    readonly GREEN_BITS: 0x0D53;
    readonly BLUE_BITS: 0x0D54;
    readonly ALPHA_BITS: 0x0D55;
    readonly DEPTH_BITS: 0x0D56;
    readonly STENCIL_BITS: 0x0D57;
    readonly POLYGON_OFFSET_UNITS: 0x2A00;
    readonly POLYGON_OFFSET_FACTOR: 0x8038;
    readonly TEXTURE_BINDING_2D: 0x8069;
    readonly SAMPLE_BUFFERS: 0x80A8;
    readonly SAMPLES: 0x80A9;
    readonly SAMPLE_COVERAGE_VALUE: 0x80AA;
    readonly SAMPLE_COVERAGE_INVERT: 0x80AB;
    readonly COMPRESSED_TEXTURE_FORMATS: 0x86A3;
    readonly DONT_CARE: 0x1100;
    readonly FASTEST: 0x1101;
    readonly NICEST: 0x1102;
    readonly GENERATE_MIPMAP_HINT: 0x8192;
    readonly BYTE: 0x1400;
    readonly UNSIGNED_BYTE: 0x1401;
    readonly SHORT: 0x1402;
    readonly UNSIGNED_SHORT: 0x1403;
    readonly INT: 0x1404;
    readonly UNSIGNED_INT: 0x1405;
    readonly FLOAT: 0x1406;
    readonly DEPTH_COMPONENT: 0x1902;
    readonly ALPHA: 0x1906;
    readonly RGB: 0x1907;
    readonly RGBA: 0x1908;
    readonly LUMINANCE: 0x1909;
    readonly LUMINANCE_ALPHA: 0x190A;
    readonly UNSIGNED_SHORT_4_4_4_4: 0x8033;
    readonly UNSIGNED_SHORT_5_5_5_1: 0x8034;
    readonly UNSIGNED_SHORT_5_6_5: 0x8363;
    readonly FRAGMENT_SHADER: 0x8B30;
    readonly VERTEX_SHADER: 0x8B31;
    readonly MAX_VERTEX_ATTRIBS: 0x8869;
    readonly MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB;
    readonly MAX_VARYING_VECTORS: 0x8DFC;
    readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D;
    readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C;
    readonly MAX_TEXTURE_IMAGE_UNITS: 0x8872;
    readonly MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD;
    readonly SHADER_TYPE: 0x8B4F;
    readonly DELETE_STATUS: 0x8B80;
    readonly LINK_STATUS: 0x8B82;
    readonly VALIDATE_STATUS: 0x8B83;
    readonly ATTACHED_SHADERS: 0x8B85;
    readonly ACTIVE_UNIFORMS: 0x8B86;
    readonly ACTIVE_ATTRIBUTES: 0x8B89;
    readonly SHADING_LANGUAGE_VERSION: 0x8B8C;
    readonly CURRENT_PROGRAM: 0x8B8D;
    readonly NEVER: 0x0200;
    readonly LESS: 0x0201;
    readonly EQUAL: 0x0202;
    readonly LEQUAL: 0x0203;
    readonly GREATER: 0x0204;
    readonly NOTEQUAL: 0x0205;
    readonly GEQUAL: 0x0206;
    readonly ALWAYS: 0x0207;
    readonly KEEP: 0x1E00;
    readonly REPLACE: 0x1E01;
    readonly INCR: 0x1E02;
    readonly DECR: 0x1E03;
    readonly INVERT: 0x150A;
    readonly INCR_WRAP: 0x8507;
    readonly DECR_WRAP: 0x8508;
    readonly VENDOR: 0x1F00;
    readonly RENDERER: 0x1F01;
    readonly VERSION: 0x1F02;
    readonly NEAREST: 0x2600;
    readonly LINEAR: 0x2601;
    readonly NEAREST_MIPMAP_NEAREST: 0x2700;
    readonly LINEAR_MIPMAP_NEAREST: 0x2701;
    readonly NEAREST_MIPMAP_LINEAR: 0x2702;
    readonly LINEAR_MIPMAP_LINEAR: 0x2703;
    readonly TEXTURE_MAG_FILTER: 0x2800;
    readonly TEXTURE_MIN_FILTER: 0x2801;
    readonly TEXTURE_WRAP_S: 0x2802;
    readonly TEXTURE_WRAP_T: 0x2803;
    readonly TEXTURE_2D: 0x0DE1;
    readonly TEXTURE: 0x1702;
    readonly TEXTURE_CUBE_MAP: 0x8513;
    readonly TEXTURE_BINDING_CUBE_MAP: 0x8514;
    readonly TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518;
    readonly TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519;
    readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A;
    readonly MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C;
    readonly TEXTURE0: 0x84C0;
    readonly TEXTURE1: 0x84C1;
    readonly TEXTURE2: 0x84C2;
    readonly TEXTURE3: 0x84C3;
    readonly TEXTURE4: 0x84C4;
    readonly TEXTURE5: 0x84C5;
    readonly TEXTURE6: 0x84C6;
    readonly TEXTURE7: 0x84C7;
    readonly TEXTURE8: 0x84C8;
    readonly TEXTURE9: 0x84C9;
    readonly TEXTURE10: 0x84CA;
    readonly TEXTURE11: 0x84CB;
    readonly TEXTURE12: 0x84CC;
    readonly TEXTURE13: 0x84CD;
    readonly TEXTURE14: 0x84CE;
    readonly TEXTURE15: 0x84CF;
    readonly TEXTURE16: 0x84D0;
    readonly TEXTURE17: 0x84D1;
    readonly TEXTURE18: 0x84D2;
    readonly TEXTURE19: 0x84D3;
    readonly TEXTURE20: 0x84D4;
    readonly TEXTURE21: 0x84D5;
    readonly TEXTURE22: 0x84D6;
    readonly TEXTURE23: 0x84D7;
    readonly TEXTURE24: 0x84D8;
    readonly TEXTURE25: 0x84D9;
    readonly TEXTURE26: 0x84DA;
    readonly TEXTURE27: 0x84DB;
    readonly TEXTURE28: 0x84DC;
    readonly TEXTURE29: 0x84DD;
    readonly TEXTURE30: 0x84DE;
    readonly TEXTURE31: 0x84DF;
    readonly ACTIVE_TEXTURE: 0x84E0;
    readonly REPEAT: 0x2901;
    readonly CLAMP_TO_EDGE: 0x812F;
    readonly MIRRORED_REPEAT: 0x8370;
    readonly FLOAT_VEC2: 0x8B50;
    readonly FLOAT_VEC3: 0x8B51;
    readonly FLOAT_VEC4: 0x8B52;
    readonly INT_VEC2: 0x8B53;
    readonly INT_VEC3: 0x8B54;
    readonly INT_VEC4: 0x8B55;
    readonly BOOL: 0x8B56;
    readonly BOOL_VEC2: 0x8B57;
    readonly BOOL_VEC3: 0x8B58;
    readonly BOOL_VEC4: 0x8B59;
    readonly FLOAT_MAT2: 0x8B5A;
    readonly FLOAT_MAT3: 0x8B5B;
    readonly FLOAT_MAT4: 0x8B5C;
    readonly SAMPLER_2D: 0x8B5E;
    readonly SAMPLER_CUBE: 0x8B60;
    readonly VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622;
    readonly VERTEX_ATTRIB_ARRAY_SIZE: 0x8623;
    readonly VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624;
    readonly VERTEX_ATTRIB_ARRAY_TYPE: 0x8625;
    readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A;
    readonly VERTEX_ATTRIB_ARRAY_POINTER: 0x8645;
    readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F;
    readonly IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A;
    readonly IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B;
    readonly COMPILE_STATUS: 0x8B81;
    readonly LOW_FLOAT: 0x8DF0;
    readonly MEDIUM_FLOAT: 0x8DF1;
    readonly HIGH_FLOAT: 0x8DF2;
    readonly LOW_INT: 0x8DF3;
    readonly MEDIUM_INT: 0x8DF4;
    readonly HIGH_INT: 0x8DF5;
    readonly FRAMEBUFFER: 0x8D40;
    readonly RENDERBUFFER: 0x8D41;
    readonly RGBA4: 0x8056;
    readonly RGB5_A1: 0x8057;
    readonly RGB565: 0x8D62;
    readonly DEPTH_COMPONENT16: 0x81A5;
    readonly STENCIL_INDEX8: 0x8D48;
    readonly DEPTH_STENCIL: 0x84F9;
    readonly RENDERBUFFER_WIDTH: 0x8D42;
    readonly RENDERBUFFER_HEIGHT: 0x8D43;
    readonly RENDERBUFFER_INTERNAL_FORMAT: 0x8D44;
    readonly RENDERBUFFER_RED_SIZE: 0x8D50;
    readonly RENDERBUFFER_GREEN_SIZE: 0x8D51;
    readonly RENDERBUFFER_BLUE_SIZE: 0x8D52;
    readonly RENDERBUFFER_ALPHA_SIZE: 0x8D53;
    readonly RENDERBUFFER_DEPTH_SIZE: 0x8D54;
    readonly RENDERBUFFER_STENCIL_SIZE: 0x8D55;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0;
    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2;
    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3;
    readonly COLOR_ATTACHMENT0: 0x8CE0;
    readonly DEPTH_ATTACHMENT: 0x8D00;
    readonly STENCIL_ATTACHMENT: 0x8D20;
    readonly DEPTH_STENCIL_ATTACHMENT: 0x821A;
    readonly NONE: 0;
    readonly FRAMEBUFFER_COMPLETE: 0x8CD5;
    readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6;
    readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7;
    readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9;
    readonly FRAMEBUFFER_UNSUPPORTED: 0x8CDD;
    readonly FRAMEBUFFER_BINDING: 0x8CA6;
    readonly RENDERBUFFER_BINDING: 0x8CA7;
    readonly MAX_RENDERBUFFER_SIZE: 0x84E8;
    readonly INVALID_FRAMEBUFFER_OPERATION: 0x0506;
    readonly UNPACK_FLIP_Y_WEBGL: 0x9240;
    readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241;
    readonly CONTEXT_LOST_WEBGL: 0x9242;
    readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243;
    readonly BROWSER_DEFAULT_WEBGL: 0x9244;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLSampler) */
interface WebGLSampler {
}

declare var WebGLSampler: {
    prototype: WebGLSampler;
    new(): WebGLSampler;
    isInstance(obj): obj is WebGLSampler;
};

/**
 * The WebGLShader is part of the WebGL API and can either be a vertex or a fragment shader. A WebGLProgram requires both types of shaders.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShader)
 */
interface WebGLShader {
}

declare var WebGLShader: {
    prototype: WebGLShader;
    new(): WebGLShader;
    isInstance(obj): obj is WebGLShader;
};

/**
 * Part of the WebGL API and represents the information returned by calling the WebGLRenderingContext.getShaderPrecisionFormat() method.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat)
 */
interface WebGLShaderPrecisionFormat {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/precision) */
    readonly precision: GLint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMax) */
    readonly rangeMax: GLint;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLShaderPrecisionFormat/rangeMin) */
    readonly rangeMin: GLint;
}

declare var WebGLShaderPrecisionFormat: {
    prototype: WebGLShaderPrecisionFormat;
    new(): WebGLShaderPrecisionFormat;
    isInstance(obj): obj is WebGLShaderPrecisionFormat;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLSync) */
interface WebGLSync {
}

declare var WebGLSync: {
    prototype: WebGLSync;
    new(): WebGLSync;
    isInstance(obj): obj is WebGLSync;
};

/**
 * Part of the WebGL API and represents an opaque texture object providing storage and state for texturing operations.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLTexture)
 */
interface WebGLTexture {
}

declare var WebGLTexture: {
    prototype: WebGLTexture;
    new(): WebGLTexture;
    isInstance(obj): obj is WebGLTexture;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLTransformFeedback) */
interface WebGLTransformFeedback {
}

declare var WebGLTransformFeedback: {
    prototype: WebGLTransformFeedback;
    new(): WebGLTransformFeedback;
    isInstance(obj): obj is WebGLTransformFeedback;
};

/**
 * Part of the WebGL API and represents the location of a uniform variable in a shader program.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLUniformLocation)
 */
interface WebGLUniformLocation {
}

declare var WebGLUniformLocation: {
    prototype: WebGLUniformLocation;
    new(): WebGLUniformLocation;
    isInstance(obj): obj is WebGLUniformLocation;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLVertexArrayObject) */
interface WebGLVertexArrayObject {
}

declare var WebGLVertexArrayObject: {
    prototype: WebGLVertexArrayObject;
    new(): WebGLVertexArrayObject;
    isInstance(obj): obj is WebGLVertexArrayObject;
};

interface WebSocketEventMap {
    "close": Event;
    "error": ErrorEvent;
    "message": Event;
    "open": Event;
}

/**
 * Provides the API for creating and managing a WebSocket connection to a server, as well as for sending and receiving data on the connection.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket)
 */
interface WebSocket extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/binaryType) */
    binaryType: BinaryType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/bufferedAmount) */
    readonly bufferedAmount: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/extensions) */
    readonly extensions: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/close_event) */
    onclose: ((this: WebSocket, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/message_event) */
    onmessage: ((this: WebSocket, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/open_event) */
    onopen: ((this: WebSocket, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/protocol) */
    readonly protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/readyState) */
    readonly readyState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/url) */
    readonly url: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/close) */
    close(code?: number, reason?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebSocket/send) */
    send(data: string): void;
    send(data: Blob): void;
    send(data: ArrayBuffer): void;
    send(data: ArrayBufferView): void;
    readonly CONNECTING: 0;
    readonly OPEN: 1;
    readonly CLOSING: 2;
    readonly CLOSED: 3;
    addEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WebSocketEventMap>(type: K, listener: (this: WebSocket, ev: WebSocketEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var WebSocket: {
    prototype: WebSocket;
    new(url: string, protocols?: string | string[]): WebSocket;
    readonly CONNECTING: 0;
    readonly OPEN: 1;
    readonly CLOSING: 2;
    readonly CLOSED: 3;
    createServerWebSocket(url: string, protocols: string[], transportProvider: nsITransportProvider, negotiatedExtensions: string): WebSocket;
    isInstance(obj): obj is WebSocket;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport)
 */
interface WebTransport {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/closed) */
    readonly closed: Promise<WebTransportCloseInfo>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/congestionControl) */
    readonly congestionControl: WebTransportCongestionControl;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/datagrams) */
    readonly datagrams: WebTransportDatagramDuplexStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/incomingBidirectionalStreams) */
    readonly incomingBidirectionalStreams: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/incomingUnidirectionalStreams) */
    readonly incomingUnidirectionalStreams: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/ready) */
    readonly ready: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/reliability) */
    readonly reliability: WebTransportReliabilityMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/close) */
    close(closeInfo?: WebTransportCloseInfo): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createBidirectionalStream) */
    createBidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WebTransportBidirectionalStream>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream) */
    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/getStats) */
    getStats(): Promise<WebTransportStats>;
}

declare var WebTransport: {
    prototype: WebTransport;
    new(url: string | URL, options?: WebTransportOptions): WebTransport;
    isInstance(obj): obj is WebTransport;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportBidirectionalStream)
 */
interface WebTransportBidirectionalStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportBidirectionalStream/readable) */
    readonly readable: WebTransportReceiveStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportBidirectionalStream/writable) */
    readonly writable: WebTransportSendStream;
}

declare var WebTransportBidirectionalStream: {
    prototype: WebTransportBidirectionalStream;
    new(): WebTransportBidirectionalStream;
    isInstance(obj): obj is WebTransportBidirectionalStream;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream)
 */
interface WebTransportDatagramDuplexStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/incomingHighWaterMark) */
    incomingHighWaterMark: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/incomingMaxAge) */
    incomingMaxAge: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/maxDatagramSize) */
    readonly maxDatagramSize: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/outgoingHighWaterMark) */
    outgoingHighWaterMark: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/outgoingMaxAge) */
    outgoingMaxAge: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/readable) */
    readonly readable: ReadableStream;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportDatagramDuplexStream/writable) */
    readonly writable: WritableStream;
}

declare var WebTransportDatagramDuplexStream: {
    prototype: WebTransportDatagramDuplexStream;
    new(): WebTransportDatagramDuplexStream;
    isInstance(obj): obj is WebTransportDatagramDuplexStream;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportError)
 */
interface WebTransportError extends DOMException {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportError/source) */
    readonly source: WebTransportErrorSource;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportError/streamErrorCode) */
    readonly streamErrorCode: number | null;
}

declare var WebTransportError: {
    prototype: WebTransportError;
    new(init?: WebTransportErrorInit): WebTransportError;
    isInstance(obj): obj is WebTransportError;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportReceiveStream)
 */
interface WebTransportReceiveStream extends ReadableStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransportReceiveStream/getStats) */
    getStats(): Promise<WebTransportReceiveStreamStats>;
}

declare var WebTransportReceiveStream: {
    prototype: WebTransportReceiveStream;
    new(): WebTransportReceiveStream;
    isInstance(obj): obj is WebTransportReceiveStream;
};

/** Available only in secure contexts. */
interface WebTransportSendStream extends WritableStream {
    sendOrder: number | null;
    getStats(): Promise<WebTransportSendStreamStats>;
}

declare var WebTransportSendStream: {
    prototype: WebTransportSendStream;
    new(): WebTransportSendStream;
    isInstance(obj): obj is WebTransportSendStream;
};

/**
 * Events that occur due to the user moving a mouse wheel or similar input device.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WheelEvent)
 */
interface WheelEvent extends MouseEvent {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WheelEvent/deltaMode) */
    readonly deltaMode: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WheelEvent/deltaX) */
    readonly deltaX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WheelEvent/deltaY) */
    readonly deltaY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WheelEvent/deltaZ) */
    readonly deltaZ: number;
    /** @deprecated */
    readonly wheelDelta: number;
    /** @deprecated */
    readonly wheelDeltaX: number;
    /** @deprecated */
    readonly wheelDeltaY: number;
    readonly DOM_DELTA_PIXEL: 0x00;
    readonly DOM_DELTA_LINE: 0x01;
    readonly DOM_DELTA_PAGE: 0x02;
}

declare var WheelEvent: {
    prototype: WheelEvent;
    new(type: string, eventInitDict?: WheelEventInit): WheelEvent;
    readonly DOM_DELTA_PIXEL: 0x00;
    readonly DOM_DELTA_LINE: 0x01;
    readonly DOM_DELTA_PAGE: 0x02;
    isInstance(obj): obj is WheelEvent;
};

interface WindowEventMap extends GlobalEventHandlersEventMap, OnErrorEventHandlerForWindowEventMap, TouchEventHandlersEventMap, WindowEventHandlersEventMap {
    "devicelight": Event;
    "devicemotion": Event;
    "deviceorientation": Event;
    "deviceorientationabsolute": Event;
    "orientationchange": Event;
    "userproximity": Event;
    "vrdisplayactivate": Event;
    "vrdisplayconnect": Event;
    "vrdisplaydeactivate": Event;
    "vrdisplaydisconnect": Event;
    "vrdisplaypresentchange": Event;
}

/**
 * A window containing a DOM document; the document property points to the DOM document loaded in that window.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window)
 */
interface Window extends EventTarget, AnimationFrameProvider, GlobalCrypto, GlobalEventHandlers, OnErrorEventHandlerForWindow, SpeechSynthesisGetter, TouchEventHandlers, WindowEventHandlers, WindowLocalStorage, WindowOrWorkerGlobalScope, WindowSessionStorage {
    readonly Glean: GleanImpl;
    readonly GleanPings: GleanPingsImpl;
    readonly InstallTrigger: InstallTriggerImpl | null;
    browserDOMWindow: nsIBrowserDOMWindow | null;
    readonly browsingContext: BrowsingContext;
    /**
     * @deprecated This is a legacy alias of `navigator`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/navigator)
     */
    readonly clientInformation: Navigator;
    readonly clientPrincipal: Principal | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/closed) */
    readonly closed: boolean;
    readonly content: any;
    readonly controllers: XULControllers;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/customElements) */
    readonly customElements: CustomElementRegistry;
    readonly desktopToDeviceScale: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/devicePixelRatio) */
    readonly devicePixelRatio: number;
    readonly docShell: nsIDocShell | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/document) */
    readonly document: Document | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/event)
     */
    readonly event: Event | undefined;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/external)
     */
    readonly external: External;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/frameElement) */
    readonly frameElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/frames) */
    readonly frames: WindowProxy;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/fullScreen) */
    fullScreen: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/history) */
    readonly history: History;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/innerHeight) */
    readonly innerHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/innerWidth) */
    readonly innerWidth: number;
    readonly intlUtils: IntlUtils;
    readonly isChromeWindow: boolean;
    readonly isFullyOccluded: boolean;
    readonly isInFullScreenTransition: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/length) */
    readonly length: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/location) */
    readonly location: Location;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/locationbar) */
    readonly locationbar: BarProp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/menubar) */
    readonly menubar: BarProp;
    readonly messageManager: ChromeMessageBroadcaster;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/mozInnerScreenX) */
    readonly mozInnerScreenX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/mozInnerScreenY) */
    readonly mozInnerScreenY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/name) */
    name: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/navigator) */
    readonly navigator: Navigator;
    ondevicelight: ((this: Window, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/devicemotion_event) */
    ondevicemotion: ((this: Window, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/deviceorientation_event) */
    ondeviceorientation: ((this: Window, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/deviceorientationabsolute_event) */
    ondeviceorientationabsolute: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/orientationchange_event)
     */
    onorientationchange: ((this: Window, ev: Event) => any) | null;
    onuserproximity: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/vrdisplayactivate_event)
     */
    onvrdisplayactivate: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/vrdisplayconnect_event)
     */
    onvrdisplayconnect: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/vrdisplaydeactivate_event)
     */
    onvrdisplaydeactivate: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/vrdisplaydisconnect_event)
     */
    onvrdisplaydisconnect: ((this: Window, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/vrdisplaypresentchange_event)
     */
    onvrdisplaypresentchange: ((this: Window, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/opener) */
    opener: any;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/orientation)
     */
    readonly orientation: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/outerHeight) */
    readonly outerHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/outerWidth) */
    readonly outerWidth: number;
    /**
     * @deprecated This is a legacy alias of `scrollX`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollX)
     */
    readonly pageXOffset: number;
    /**
     * @deprecated This is a legacy alias of `scrollY`.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollY)
     */
    readonly pageYOffset: number;
    readonly paintWorklet: Worklet;
    /**
     * Refers to either the parent WindowProxy, or itself.
     *
     * It can rarely be null e.g. for contentWindow of an iframe that is already removed from the parent.
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/parent)
     */
    readonly parent: WindowProxy | null;
    readonly performance: Performance | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/personalbar) */
    readonly personalbar: BarProp;
    readonly realFrameElement: Element | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/screen) */
    readonly screen: Screen;
    readonly screenEdgeSlopX: number;
    readonly screenEdgeSlopY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/screenLeft) */
    readonly screenLeft: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/screenTop) */
    readonly screenTop: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/screenX) */
    readonly screenX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/screenY) */
    readonly screenY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollMaxX) */
    readonly scrollMaxX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollMaxY) */
    readonly scrollMaxY: number;
    readonly scrollMinX: number;
    readonly scrollMinY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollX) */
    readonly scrollX: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollY) */
    readonly scrollY: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollbars) */
    readonly scrollbars: BarProp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/self) */
    readonly self: WindowProxy;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/status)
     */
    status: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/statusbar) */
    readonly statusbar: BarProp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/toolbar) */
    readonly toolbar: BarProp;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/top) */
    readonly top: WindowProxy | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/visualViewport) */
    readonly visualViewport: VisualViewport;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/window) */
    readonly window: WindowProxy;
    readonly windowGlobalChild: WindowGlobalChild | null;
    readonly windowRoot: WindowRoot | null;
    readonly windowState: number;
    readonly windowUtils: nsIDOMWindowUtils;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/alert) */
    alert(): void;
    alert(message: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/blur) */
    blur(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/cancelIdleCallback) */
    cancelIdleCallback(handle: number): void;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/captureEvents)
     */
    captureEvents(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/close) */
    close(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/confirm) */
    confirm(message?: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/dump) */
    dump(str: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/find) */
    find(str?: string, caseSensitive?: boolean, backwards?: boolean, wrapAround?: boolean, wholeWord?: boolean, searchInFrames?: boolean, showDialog?: boolean): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/focus) */
    focus(): void;
    getAttention(): void;
    getAttentionWithCycleCount(aCycleCount: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/getComputedStyle) */
    getComputedStyle(elt: Element, pseudoElt?: string | null): CSSStyleDeclaration | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/getDefaultComputedStyle) */
    getDefaultComputedStyle(elt: Element, pseudoElt?: string): CSSStyleDeclaration | null;
    getGroupMessageManager(aGroup: string): ChromeMessageBroadcaster;
    getInterface(iid: any): any;
    getRegionalPrefsLocales(): string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/getSelection) */
    getSelection(): Selection | null;
    getWebExposedLocales(): string[];
    getWorkspaceID(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/matchMedia) */
    matchMedia(query: UTF8String): MediaQueryList | null;
    maximize(): void;
    minimize(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/moveBy) */
    moveBy(x: number, y: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/moveTo) */
    moveTo(x: number, y: number): void;
    moveToWorkspace(workspaceID: string): void;
    mozScrollSnap(): void;
    notifyDefaultButtonLoaded(defaultButton: Element): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/open) */
    open(url?: string | URL, target?: string, features?: string): WindowProxy | null;
    openDialog(url?: string, name?: string, options?: string, ...extraArguments: any[]): WindowProxy | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/postMessage) */
    postMessage(message: any, targetOrigin: string, transfer?: any[]): void;
    postMessage(message: any, options?: WindowPostMessageOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/print) */
    print(): void;
    printPreview(settings?: nsIPrintSettings | null, listener?: nsIWebProgressListener | null, docShellToPreviewInto?: nsIDocShell | null): WindowProxy | null;
    promiseDocumentFlushed(callback: PromiseDocumentFlushedCallback): Promise<any>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/prompt) */
    prompt(message?: string, _default?: string): string | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/releaseEvents)
     */
    releaseEvents(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/requestIdleCallback) */
    requestIdleCallback(callback: IdleRequestCallback, options?: IdleRequestOptions): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/resizeBy) */
    resizeBy(x: number, y: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/resizeTo) */
    resizeTo(x: number, y: number): void;
    restore(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scroll) */
    scroll(x: number, y: number): void;
    scroll(options?: ScrollToOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollBy) */
    scrollBy(x: number, y: number): void;
    scrollBy(options?: ScrollToOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollByLines) */
    scrollByLines(numLines: number, options?: ScrollOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollByPages) */
    scrollByPages(numPages: number, options?: ScrollOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scrollTo) */
    scrollTo(x: number, y: number): void;
    scrollTo(options?: ScrollToOptions): void;
    setCursor(cursor: UTF8String): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/setResizable) */
    setResizable(resizable: boolean): void;
    setScrollMarks(marks: number[], onHorizontalScrollbar?: boolean): void;
    shouldReportForServiceWorkerScope(aScope: string): boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/sizeToContent) */
    sizeToContent(): void;
    sizeToContentConstrained(constraints?: SizeToContentConstraints): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/stop) */
    stop(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/updateCommands) */
    updateCommands(action: string): void;
    readonly STATE_MAXIMIZED: 1;
    readonly STATE_MINIMIZED: 2;
    readonly STATE_NORMAL: 3;
    readonly STATE_FULLSCREEN: 4;
    addEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
    [name: string]: any;
}

declare var Window: {
    prototype: Window;
    new(): Window;
    readonly STATE_MAXIMIZED: 1;
    readonly STATE_MINIMIZED: 2;
    readonly STATE_NORMAL: 3;
    readonly STATE_FULLSCREEN: 4;
    isInstance(obj): obj is Window;
};

/**
 * This ServiceWorker API interface represents the scope of a service worker client that is a document in a browser context, controlled by an active worker. The service worker client independently selects and uses a service worker for its own loading and sub-resources.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WindowClient)
 */
interface WindowClient extends Client {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WindowClient/focused) */
    readonly focused: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WindowClient/visibilityState) */
    readonly visibilityState: VisibilityState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WindowClient/focus) */
    focus(): Promise<WindowClient>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WindowClient/navigate) */
    navigate(url: string | URL): Promise<WindowClient>;
}

declare var WindowClient: {
    prototype: WindowClient;
    new(): WindowClient;
    isInstance(obj): obj is WindowClient;
};

interface WindowContext {
    allowJavascript: boolean;
    readonly browsingContext: BrowsingContext | null;
    readonly hasBeforeUnload: boolean;
    readonly innerWindowId: number;
    readonly isInBFCache: boolean;
    readonly isInProcess: boolean;
    readonly isLocalIP: boolean;
    readonly overriddenFingerprintingSettings: number | null;
    readonly parentWindowContext: WindowContext | null;
    readonly shouldResistFingerprinting: boolean;
    readonly topWindowContext: WindowContext;
    readonly windowGlobalChild: WindowGlobalChild | null;
}

declare var WindowContext: {
    prototype: WindowContext;
    new(): WindowContext;
    isInstance(obj): obj is WindowContext;
};

interface WindowEventHandlersEventMap {
    "afterprint": Event;
    "beforeprint": Event;
    "beforeunload": Event;
    "gamepadconnected": Event;
    "gamepaddisconnected": Event;
    "hashchange": Event;
    "languagechange": Event;
    "message": Event;
    "messageerror": Event;
    "offline": Event;
    "online": Event;
    "pagehide": Event;
    "pageshow": Event;
    "popstate": Event;
    "rejectionhandled": Event;
    "storage": Event;
    "unhandledrejection": Event;
    "unload": Event;
}

interface WindowEventHandlers {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/afterprint_event) */
    onafterprint: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/beforeprint_event) */
    onbeforeprint: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/beforeunload_event) */
    onbeforeunload: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/gamepadconnected_event) */
    ongamepadconnected: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/gamepaddisconnected_event) */
    ongamepaddisconnected: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/hashchange_event) */
    onhashchange: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/languagechange_event) */
    onlanguagechange: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/message_event) */
    onmessage: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/messageerror_event) */
    onmessageerror: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/offline_event) */
    onoffline: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/online_event) */
    ononline: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/pagehide_event) */
    onpagehide: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/pageshow_event) */
    onpageshow: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/popstate_event) */
    onpopstate: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/rejectionhandled_event) */
    onrejectionhandled: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/storage_event) */
    onstorage: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/unhandledrejection_event) */
    onunhandledrejection: ((this: WindowEventHandlers, ev: Event) => any) | null;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/unload_event)
     */
    onunload: ((this: WindowEventHandlers, ev: Event) => any) | null;
    addEventListener<K extends keyof WindowEventHandlersEventMap>(type: K, listener: (this: WindowEventHandlers, ev: WindowEventHandlersEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WindowEventHandlersEventMap>(type: K, listener: (this: WindowEventHandlers, ev: WindowEventHandlersEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

interface WindowGlobalChild {
    readonly browsingContext: BrowsingContext;
    readonly contentParentId: number;
    readonly innerWindowId: number;
    readonly isClosed: boolean;
    readonly isCurrentGlobal: boolean;
    readonly isInProcess: boolean;
    readonly isProcessRoot: boolean;
    readonly outerWindowId: number;
    readonly parentActor: WindowGlobalParent | null;
    readonly sameOriginWithTop: boolean;
    readonly windowContext: WindowContext;
    findBrowsingContextWithName(name: string): BrowsingContext | null;
    getActor(name: UTF8String): JSWindowActorChild;
    getExistingActor(name: UTF8String): JSWindowActorChild | null;
}

declare var WindowGlobalChild: {
    prototype: WindowGlobalChild;
    new(): WindowGlobalChild;
    getByInnerWindowId(innerWIndowId: number): WindowGlobalChild | null;
    isInstance(obj): obj is WindowGlobalChild;
};

interface WindowGlobalParent extends WindowContext {
    readonly childActor: WindowGlobalChild | null;
    readonly contentBlockingAllowListPrincipal: Principal | null;
    readonly contentBlockingEvents: number;
    readonly contentBlockingLog: string;
    readonly contentParentId: number;
    readonly cookieJarSettings: nsICookieJarSettings | null;
    readonly documentPrincipal: Principal;
    readonly documentStoragePrincipal: Principal;
    readonly documentTitle: string;
    readonly documentURI: URI | null;
    readonly domProcess: nsIDOMProcessParent | null;
    fullscreen: boolean;
    readonly isClosed: boolean;
    readonly isCurrentGlobal: boolean;
    readonly isInitialDocument: boolean;
    readonly isProcessRoot: boolean;
    readonly osPid: number;
    readonly outerWindowId: number;
    readonly rootFrameLoader: FrameLoader | null;
    drawSnapshot(rect: DOMRect | null, scale: number, backgroundColor: UTF8String, resetScrollPosition?: boolean): Promise<ImageBitmap>;
    getActor(name: UTF8String): JSWindowActorParent;
    getExistingActor(name: UTF8String): JSWindowActorParent | null;
    hasActivePeerConnections(): boolean;
    permitUnload(action?: PermitUnloadAction, timeout?: number): Promise<boolean>;
}

declare var WindowGlobalParent: {
    prototype: WindowGlobalParent;
    new(): WindowGlobalParent;
    getByInnerWindowId(innerWindowId: number): WindowGlobalParent | null;
    isInstance(obj): obj is WindowGlobalParent;
};

interface WindowLocalStorage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/localStorage) */
    readonly localStorage: Storage | null;
}

interface WindowOrWorkerGlobalScope {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/caches) */
    readonly caches: CacheStorage;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/crossOriginIsolated) */
    readonly crossOriginIsolated: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/indexedDB) */
    readonly indexedDB: IDBFactory | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/isSecureContext) */
    readonly isSecureContext: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/scheduler) */
    readonly scheduler: Scheduler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/atob) */
    atob(atob: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/btoa) */
    btoa(btoa: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/clearInterval) */
    clearInterval(handle?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/clearTimeout) */
    clearTimeout(handle?: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/createImageBitmap) */
    createImageBitmap(aImage: ImageBitmapSource, aOptions?: ImageBitmapOptions): Promise<ImageBitmap>;
    createImageBitmap(aImage: ImageBitmapSource, aSx: number, aSy: number, aSw: number, aSh: number, aOptions?: ImageBitmapOptions): Promise<ImageBitmap>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/fetch) */
    fetch(input: RequestInfo | URL, init?: RequestInit): Promise<Response>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/queueMicrotask) */
    queueMicrotask(callback: VoidFunction): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/reportError) */
    reportError(e: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/setInterval) */
    setInterval(handler: Function, timeout?: number, ...arguments: any[]): number;
    setInterval(handler: string, timeout?: number, ...unused: any[]): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/setTimeout) */
    setTimeout(handler: Function, timeout?: number, ...arguments: any[]): number;
    setTimeout(handler: string, timeout?: number, ...unused: any[]): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/structuredClone) */
    structuredClone(value: any, options?: StructuredSerializeOptions): any;
}

interface WindowRoot extends EventTarget {
}

declare var WindowRoot: {
    prototype: WindowRoot;
    new(): WindowRoot;
    isInstance(obj): obj is WindowRoot;
};

interface WindowSessionStorage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Window/sessionStorage) */
    readonly sessionStorage: Storage | null;
}

interface WorkerEventMap extends AbstractWorkerEventMap {
    "message": Event;
    "messageerror": Event;
}

/**
 * This Web Workers API interface represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker() constructor and specifying a script to be run in the worker thread.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worker)
 */
interface Worker extends EventTarget, AbstractWorker {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worker/message_event) */
    onmessage: ((this: Worker, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worker/messageerror_event) */
    onmessageerror: ((this: Worker, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worker/postMessage) */
    postMessage(message: any, transfer: any[]): void;
    postMessage(message: any, aOptions?: StructuredSerializeOptions): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worker/terminate) */
    terminate(): void;
    addEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WorkerEventMap>(type: K, listener: (this: Worker, ev: WorkerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var Worker: {
    prototype: Worker;
    new(scriptURL: string | URL, options?: WorkerOptions): Worker;
    isInstance(obj): obj is Worker;
};

interface WorkerDebuggerGlobalScopeEventMap {
    "message": Event;
    "messageerror": Event;
}

interface WorkerDebuggerGlobalScope extends EventTarget {
    readonly global: any;
    onmessage: ((this: WorkerDebuggerGlobalScope, ev: Event) => any) | null;
    onmessageerror: ((this: WorkerDebuggerGlobalScope, ev: Event) => any) | null;
    atob(atob: string): string;
    btoa(btoa: string): string;
    clearConsoleEvents(): void;
    createSandbox(name: string, prototype: any): any;
    dump(string?: string): void;
    enterEventLoop(): void;
    leaveEventLoop(): void;
    loadSubScript(url: string, sandbox?: any): void;
    postMessage(message: string): void;
    reportError(message: string): void;
    retrieveConsoleEvents(): any[];
    setConsoleEventHandler(handler: AnyCallback | null): void;
    setImmediate(handler: Function): void;
    addEventListener<K extends keyof WorkerDebuggerGlobalScopeEventMap>(type: K, listener: (this: WorkerDebuggerGlobalScope, ev: WorkerDebuggerGlobalScopeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WorkerDebuggerGlobalScopeEventMap>(type: K, listener: (this: WorkerDebuggerGlobalScope, ev: WorkerDebuggerGlobalScopeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var WorkerDebuggerGlobalScope: {
    prototype: WorkerDebuggerGlobalScope;
    new(): WorkerDebuggerGlobalScope;
    isInstance(obj): obj is WorkerDebuggerGlobalScope;
};

interface WorkerGlobalScopeEventMap {
    "error": ErrorEvent;
    "languagechange": Event;
    "offline": Event;
    "online": Event;
    "rejectionhandled": Event;
    "unhandledrejection": Event;
}

/**
 * This Web Workers API interface is an interface representing the scope of any worker. Workers have no browsing context; this scope contains the information usually conveyed by Window objects — in this case event handlers, the console or the associated WorkerNavigator object. Each WorkerGlobalScope has its own event loop.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope)
 */
interface WorkerGlobalScope extends EventTarget, FontFaceSource, GlobalCrypto, WindowOrWorkerGlobalScope {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/location) */
    readonly location: WorkerLocation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/navigator) */
    readonly navigator: WorkerNavigator;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/error_event) */
    onerror: OnErrorEventHandler;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/languagechange_event) */
    onlanguagechange: ((this: WorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/offline_event) */
    onoffline: ((this: WorkerGlobalScope, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/online_event) */
    ononline: ((this: WorkerGlobalScope, ev: Event) => any) | null;
    onrejectionhandled: ((this: WorkerGlobalScope, ev: Event) => any) | null;
    onunhandledrejection: ((this: WorkerGlobalScope, ev: Event) => any) | null;
    readonly performance: Performance;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/self) */
    readonly self: WorkerGlobalScope;
    /**
     * @deprecated
     *
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/dump)
     */
    dump(str?: string): void;
    getJSTestingFunctions(): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerGlobalScope/importScripts) */
    importScripts(...urls: string[]): void;
    addEventListener<K extends keyof WorkerGlobalScopeEventMap>(type: K, listener: (this: WorkerGlobalScope, ev: WorkerGlobalScopeEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof WorkerGlobalScopeEventMap>(type: K, listener: (this: WorkerGlobalScope, ev: WorkerGlobalScopeEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var WorkerGlobalScope: {
    prototype: WorkerGlobalScope;
    new(): WorkerGlobalScope;
    isInstance(obj): obj is WorkerGlobalScope;
};

/**
 * The absolute location of the script executed by the Worker. Such an object is initialized for each worker and is available via the WorkerGlobalScope.location property obtained by calling self.location.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation)
 */
interface WorkerLocation {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/hash) */
    readonly hash: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/host) */
    readonly host: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/hostname) */
    readonly hostname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/href) */
    readonly href: string;
    toString(): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/origin) */
    readonly origin: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/pathname) */
    readonly pathname: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/port) */
    readonly port: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/protocol) */
    readonly protocol: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerLocation/search) */
    readonly search: string;
}

declare var WorkerLocation: {
    prototype: WorkerLocation;
    new(): WorkerLocation;
    isInstance(obj): obj is WorkerLocation;
};

/**
 * A subset of the Navigator interface allowed to be accessed from a Worker. Such an object is initialized for each worker and is available via the WorkerGlobalScope.navigator property obtained by calling window.self.navigator.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerNavigator)
 */
interface WorkerNavigator extends GlobalPrivacyControl, NavigatorConcurrentHardware, NavigatorGPU, NavigatorID, NavigatorLanguage, NavigatorLocks, NavigatorOnLine, NavigatorStorage {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerNavigator/connection) */
    readonly connection: NetworkInformation;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkerNavigator/mediaCapabilities) */
    readonly mediaCapabilities: MediaCapabilities;
}

declare var WorkerNavigator: {
    prototype: WorkerNavigator;
    new(): WorkerNavigator;
    isInstance(obj): obj is WorkerNavigator;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worklet)
 */
interface Worklet {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Worklet/addModule) */
    addModule(moduleURL: string | URL, options?: WorkletOptions): Promise<void>;
}

declare var Worklet: {
    prototype: Worklet;
    new(): Worklet;
    isInstance(obj): obj is Worklet;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WorkletGlobalScope) */
interface WorkletGlobalScope {
    dump(str?: string): void;
}

declare var WorkletGlobalScope: {
    prototype: WorkletGlobalScope;
    new(): WorkletGlobalScope;
    isInstance(obj): obj is WorkletGlobalScope;
};

interface WrapperCachedNonISupportsTestInterface {
}

declare var WrapperCachedNonISupportsTestInterface: {
    prototype: WrapperCachedNonISupportsTestInterface;
    new(): WrapperCachedNonISupportsTestInterface;
    isInstance(obj): obj is WrapperCachedNonISupportsTestInterface;
};

/**
 * This Streams API interface provides a standard abstraction for writing streaming data to a destination, known as a sink. This object comes with built-in backpressure and queuing.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStream)
 */
interface WritableStream {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStream/locked) */
    readonly locked: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStream/abort) */
    abort(reason?: any): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStream/close) */
    close(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStream/getWriter) */
    getWriter(): WritableStreamDefaultWriter;
}

declare var WritableStream: {
    prototype: WritableStream;
    new(underlyingSink?: any, strategy?: QueuingStrategy): WritableStream;
    isInstance(obj): obj is WritableStream;
};

/**
 * This Streams API interface represents a controller allowing control of a WritableStream's state. When constructing a WritableStream, the underlying sink is given a corresponding WritableStreamDefaultController instance to manipulate.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultController)
 */
interface WritableStreamDefaultController {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultController/signal) */
    readonly signal: AbortSignal;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultController/error) */
    error(e?: any): void;
}

declare var WritableStreamDefaultController: {
    prototype: WritableStreamDefaultController;
    new(): WritableStreamDefaultController;
    isInstance(obj): obj is WritableStreamDefaultController;
};

/**
 * This Streams API interface is the object returned by WritableStream.getWriter() and once created locks the < writer to the WritableStream ensuring that no other streams can write to the underlying sink.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter)
 */
interface WritableStreamDefaultWriter {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/closed) */
    readonly closed: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/desiredSize) */
    readonly desiredSize: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/ready) */
    readonly ready: Promise<undefined>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/abort) */
    abort(reason?: any): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/close) */
    close(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/releaseLock) */
    releaseLock(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/WritableStreamDefaultWriter/write) */
    write(chunk?: any): Promise<void>;
}

declare var WritableStreamDefaultWriter: {
    prototype: WritableStreamDefaultWriter;
    new(stream: WritableStream): WritableStreamDefaultWriter;
    isInstance(obj): obj is WritableStreamDefaultWriter;
};

/**
 * An XML document. It inherits from the generic Document and does not add any specific methods or properties to it: nevertheless, several algorithms behave differently with the two types of documents.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLDocument)
 */
interface XMLDocument extends Document {
    addEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: XMLDocument, ev: DocumentEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof DocumentEventMap>(type: K, listener: (this: XMLDocument, ev: DocumentEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XMLDocument: {
    prototype: XMLDocument;
    new(): XMLDocument;
    isInstance(obj): obj is XMLDocument;
};

interface XMLHttpRequestEventMap extends XMLHttpRequestEventTargetEventMap {
    "readystatechange": Event;
}

/**
 * Use XMLHttpRequest (XHR) objects to interact with servers. You can retrieve data from a URL without having to do a full page refresh. This enables a Web page to update just part of a page without disrupting what the user is doing.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest)
 */
interface XMLHttpRequest extends XMLHttpRequestEventTarget {
    readonly channel: MozChannel | null;
    readonly errorCode: number;
    readonly mozAnon: boolean;
    mozBackgroundRequest: boolean;
    readonly mozSystem: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/readystatechange_event) */
    onreadystatechange: ((this: XMLHttpRequest, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/readyState) */
    readonly readyState: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/response) */
    readonly response: any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseText) */
    readonly responseText: string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseType) */
    responseType: XMLHttpRequestResponseType;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseURL) */
    readonly responseURL: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/responseXML) */
    readonly responseXML: Document | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/status) */
    readonly status: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/statusText) */
    readonly statusText: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/timeout) */
    timeout: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/upload) */
    readonly upload: XMLHttpRequestUpload;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/withCredentials) */
    withCredentials: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/abort) */
    abort(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/getAllResponseHeaders) */
    getAllResponseHeaders(): string;
    getInterface(iid: any): any;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/getResponseHeader) */
    getResponseHeader(header: string): string | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/open) */
    open(method: string, url: string | URL): void;
    open(method: string, url: string | URL, async: boolean, user?: string | null, password?: string | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/overrideMimeType) */
    overrideMimeType(mime: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/send) */
    send(body?: Document | XMLHttpRequestBodyInit | null): void;
    sendInputStream(body: InputStream): void;
    setOriginAttributes(originAttributes?: OriginAttributesDictionary): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/setRequestHeader) */
    setRequestHeader(header: string, value: string): void;
    readonly UNSENT: 0;
    readonly OPENED: 1;
    readonly HEADERS_RECEIVED: 2;
    readonly LOADING: 3;
    readonly DONE: 4;
    addEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XMLHttpRequestEventMap>(type: K, listener: (this: XMLHttpRequest, ev: XMLHttpRequestEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XMLHttpRequest: {
    prototype: XMLHttpRequest;
    new(params?: MozXMLHttpRequestParameters): XMLHttpRequest;
    new(ignored: string): XMLHttpRequest;
    readonly UNSENT: 0;
    readonly OPENED: 1;
    readonly HEADERS_RECEIVED: 2;
    readonly LOADING: 3;
    readonly DONE: 4;
    isInstance(obj): obj is XMLHttpRequest;
};

interface XMLHttpRequestEventTargetEventMap {
    "abort": Event;
    "error": ErrorEvent;
    "load": Event;
    "loadend": Event;
    "loadstart": Event;
    "progress": Event;
    "timeout": Event;
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequestEventTarget) */
interface XMLHttpRequestEventTarget extends EventTarget {
    onabort: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    onerror: OnErrorEventHandler;
    onload: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    onloadend: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    onloadstart: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    onprogress: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    ontimeout: ((this: XMLHttpRequestEventTarget, ev: Event) => any) | null;
    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestEventTarget, ev: XMLHttpRequestEventTargetEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XMLHttpRequestEventTarget: {
    prototype: XMLHttpRequestEventTarget;
    new(): XMLHttpRequestEventTarget;
    isInstance(obj): obj is XMLHttpRequestEventTarget;
};

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLHttpRequestUpload) */
interface XMLHttpRequestUpload extends XMLHttpRequestEventTarget {
    addEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestUpload, ev: XMLHttpRequestEventTargetEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XMLHttpRequestEventTargetEventMap>(type: K, listener: (this: XMLHttpRequestUpload, ev: XMLHttpRequestEventTargetEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XMLHttpRequestUpload: {
    prototype: XMLHttpRequestUpload;
    new(): XMLHttpRequestUpload;
    isInstance(obj): obj is XMLHttpRequestUpload;
};

/**
 * Provides the serializeToString() method to construct an XML string representing a DOM tree.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLSerializer)
 */
interface XMLSerializer {
    serializeToStream(root: Node, stream: OutputStream, charset: string | null): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XMLSerializer/serializeToString) */
    serializeToString(root: Node): string;
}

declare var XMLSerializer: {
    prototype: XMLSerializer;
    new(): XMLSerializer;
    isInstance(obj): obj is XMLSerializer;
};

/**
 * The XPathEvaluator interface allows to compile and evaluate XPath expressions.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathEvaluator)
 */
interface XPathEvaluator extends XPathEvaluatorMixin {
}

declare var XPathEvaluator: {
    prototype: XPathEvaluator;
    new(): XPathEvaluator;
    isInstance(obj): obj is XPathEvaluator;
};

interface XPathEvaluatorMixin {
    createExpression(expression: string, resolver?: XPathNSResolver | null): XPathExpression;
    createNSResolver(nodeResolver: Node): Node;
    evaluate(expression: string, contextNode: Node, resolver?: XPathNSResolver | null, type?: number, result?: any): XPathResult;
}

/**
 * This interface is a compiled XPath expression that can be evaluated on a document or specific node to return information its DOM tree.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathExpression)
 */
interface XPathExpression {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathExpression/evaluate) */
    evaluate(contextNode: Node, type?: number, result?: any): XPathResult;
    evaluateWithContext(contextNode: Node, contextPosition: number, contextSize: number, type?: number, result?: any): XPathResult;
}

declare var XPathExpression: {
    prototype: XPathExpression;
    new(): XPathExpression;
    isInstance(obj): obj is XPathExpression;
};

/**
 * The results generated by evaluating an XPath expression within the context of a given node.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult)
 */
interface XPathResult {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/booleanValue) */
    readonly booleanValue: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/invalidIteratorState) */
    readonly invalidIteratorState: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/numberValue) */
    readonly numberValue: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/resultType) */
    readonly resultType: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/singleNodeValue) */
    readonly singleNodeValue: Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/snapshotLength) */
    readonly snapshotLength: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/stringValue) */
    readonly stringValue: string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/iterateNext) */
    iterateNext(): Node | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XPathResult/snapshotItem) */
    snapshotItem(index: number): Node | null;
    readonly ANY_TYPE: 0;
    readonly NUMBER_TYPE: 1;
    readonly STRING_TYPE: 2;
    readonly BOOLEAN_TYPE: 3;
    readonly UNORDERED_NODE_ITERATOR_TYPE: 4;
    readonly ORDERED_NODE_ITERATOR_TYPE: 5;
    readonly UNORDERED_NODE_SNAPSHOT_TYPE: 6;
    readonly ORDERED_NODE_SNAPSHOT_TYPE: 7;
    readonly ANY_UNORDERED_NODE_TYPE: 8;
    readonly FIRST_ORDERED_NODE_TYPE: 9;
}

declare var XPathResult: {
    prototype: XPathResult;
    new(): XPathResult;
    readonly ANY_TYPE: 0;
    readonly NUMBER_TYPE: 1;
    readonly STRING_TYPE: 2;
    readonly BOOLEAN_TYPE: 3;
    readonly UNORDERED_NODE_ITERATOR_TYPE: 4;
    readonly ORDERED_NODE_ITERATOR_TYPE: 5;
    readonly UNORDERED_NODE_SNAPSHOT_TYPE: 6;
    readonly ORDERED_NODE_SNAPSHOT_TYPE: 7;
    readonly ANY_UNORDERED_NODE_TYPE: 8;
    readonly FIRST_ORDERED_NODE_TYPE: 9;
    isInstance(obj): obj is XPathResult;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRBoundedReferenceSpace)
 */
interface XRBoundedReferenceSpace extends XRReferenceSpace {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRBoundedReferenceSpace/boundsGeometry) */
    readonly boundsGeometry: DOMPointReadOnly[];
    addEventListener<K extends keyof XRReferenceSpaceEventMap>(type: K, listener: (this: XRBoundedReferenceSpace, ev: XRReferenceSpaceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XRReferenceSpaceEventMap>(type: K, listener: (this: XRBoundedReferenceSpace, ev: XRReferenceSpaceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XRBoundedReferenceSpace: {
    prototype: XRBoundedReferenceSpace;
    new(): XRBoundedReferenceSpace;
    isInstance(obj): obj is XRBoundedReferenceSpace;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRFrame)
 */
interface XRFrame {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRFrame/session) */
    readonly session: XRSession;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRFrame/getPose) */
    getPose(space: XRSpace, baseSpace: XRSpace): XRPose | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRFrame/getViewerPose) */
    getViewerPose(referenceSpace: XRReferenceSpace): XRViewerPose | null;
}

declare var XRFrame: {
    prototype: XRFrame;
    new(): XRFrame;
    isInstance(obj): obj is XRFrame;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource)
 */
interface XRInputSource {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/gamepad) */
    readonly gamepad: Gamepad | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/gripSpace) */
    readonly gripSpace: XRSpace | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/handedness) */
    readonly handedness: XRHandedness;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/profiles) */
    readonly profiles: string[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/targetRayMode) */
    readonly targetRayMode: XRTargetRayMode;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSource/targetRaySpace) */
    readonly targetRaySpace: XRSpace;
}

declare var XRInputSource: {
    prototype: XRInputSource;
    new(): XRInputSource;
    isInstance(obj): obj is XRInputSource;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourceArray)
 */
interface XRInputSourceArray {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourceArray/length) */
    readonly length: number;
    forEach(callbackfn: (value: XRInputSource, key: number, parent: XRInputSourceArray) => void, thisArg?: any): void;
    [index: number]: XRInputSource;
}

declare var XRInputSourceArray: {
    prototype: XRInputSourceArray;
    new(): XRInputSourceArray;
    isInstance(obj): obj is XRInputSourceArray;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent)
 */
interface XRInputSourceEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent/frame) */
    readonly frame: XRFrame;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourceEvent/inputSource) */
    readonly inputSource: XRInputSource;
}

declare var XRInputSourceEvent: {
    prototype: XRInputSourceEvent;
    new(type: string, eventInitDict: XRInputSourceEventInit): XRInputSourceEvent;
    isInstance(obj): obj is XRInputSourceEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent)
 */
interface XRInputSourcesChangeEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/added) */
    readonly added: XRInputSource[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/removed) */
    readonly removed: XRInputSource[];
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRInputSourcesChangeEvent/session) */
    readonly session: XRSession;
}

declare var XRInputSourcesChangeEvent: {
    prototype: XRInputSourcesChangeEvent;
    new(type: string, eventInitDict: XRInputSourcesChangeEventInit): XRInputSourcesChangeEvent;
    isInstance(obj): obj is XRInputSourcesChangeEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRPose)
 */
interface XRPose {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRPose/emulatedPosition) */
    readonly emulatedPosition: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRPose/transform) */
    readonly transform: XRRigidTransform;
}

declare var XRPose: {
    prototype: XRPose;
    new(): XRPose;
    isInstance(obj): obj is XRPose;
};

interface XRReferenceSpaceEventMap {
    "reset": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpace)
 */
interface XRReferenceSpace extends XRSpace {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpace/reset_event) */
    onreset: ((this: XRReferenceSpace, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpace/getOffsetReferenceSpace) */
    getOffsetReferenceSpace(originOffset: XRRigidTransform): XRReferenceSpace;
    addEventListener<K extends keyof XRReferenceSpaceEventMap>(type: K, listener: (this: XRReferenceSpace, ev: XRReferenceSpaceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XRReferenceSpaceEventMap>(type: K, listener: (this: XRReferenceSpace, ev: XRReferenceSpaceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XRReferenceSpace: {
    prototype: XRReferenceSpace;
    new(): XRReferenceSpace;
    isInstance(obj): obj is XRReferenceSpace;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent)
 */
interface XRReferenceSpaceEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent/referenceSpace) */
    readonly referenceSpace: XRReferenceSpace;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRReferenceSpaceEvent/transform) */
    readonly transform: XRRigidTransform | null;
}

declare var XRReferenceSpaceEvent: {
    prototype: XRReferenceSpaceEvent;
    new(type: string, eventInitDict: XRReferenceSpaceEventInit): XRReferenceSpaceEvent;
    isInstance(obj): obj is XRReferenceSpaceEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRenderState)
 */
interface XRRenderState {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRenderState/baseLayer) */
    readonly baseLayer: XRWebGLLayer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRenderState/depthFar) */
    readonly depthFar: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRenderState/depthNear) */
    readonly depthNear: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRenderState/inlineVerticalFieldOfView) */
    readonly inlineVerticalFieldOfView: number | null;
}

declare var XRRenderState: {
    prototype: XRRenderState;
    new(): XRRenderState;
    isInstance(obj): obj is XRRenderState;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRigidTransform)
 */
interface XRRigidTransform {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRigidTransform/inverse) */
    readonly inverse: XRRigidTransform;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRigidTransform/matrix) */
    readonly matrix: Float32Array;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRigidTransform/orientation) */
    readonly orientation: DOMPointReadOnly;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRRigidTransform/position) */
    readonly position: DOMPointReadOnly;
}

declare var XRRigidTransform: {
    prototype: XRRigidTransform;
    new(position?: DOMPointInit, orientation?: DOMPointInit): XRRigidTransform;
    isInstance(obj): obj is XRRigidTransform;
};

interface XRSessionEventMap {
    "end": Event;
    "inputsourceschange": Event;
    "select": Event;
    "selectend": Event;
    "selectstart": Event;
    "squeeze": Event;
    "squeezeend": Event;
    "squeezestart": Event;
    "visibilitychange": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession)
 */
interface XRSession extends EventTarget {
    readonly frameRate: number | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/inputSources) */
    readonly inputSources: XRInputSourceArray;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/end_event) */
    onend: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/inputsourceschange_event) */
    oninputsourceschange: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/select_event) */
    onselect: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/selectend_event) */
    onselectend: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/selectstart_event) */
    onselectstart: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/squeeze_event) */
    onsqueeze: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/squeezeend_event) */
    onsqueezeend: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/squeezestart_event) */
    onsqueezestart: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/visibilitychange_event) */
    onvisibilitychange: ((this: XRSession, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/renderState) */
    readonly renderState: XRRenderState;
    readonly supportedFrameRates: Float32Array | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/visibilityState) */
    readonly visibilityState: XRVisibilityState;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/cancelAnimationFrame) */
    cancelAnimationFrame(handle: number): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/end) */
    end(): Promise<void>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/requestAnimationFrame) */
    requestAnimationFrame(callback: XRFrameRequestCallback): number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/requestReferenceSpace) */
    requestReferenceSpace(type: XRReferenceSpaceType): Promise<XRReferenceSpace>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSession/updateRenderState) */
    updateRenderState(state?: XRRenderStateInit): void;
    updateTargetFrameRate(rate: number): Promise<void>;
    addEventListener<K extends keyof XRSessionEventMap>(type: K, listener: (this: XRSession, ev: XRSessionEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XRSessionEventMap>(type: K, listener: (this: XRSession, ev: XRSessionEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XRSession: {
    prototype: XRSession;
    new(): XRSession;
    isInstance(obj): obj is XRSession;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSessionEvent)
 */
interface XRSessionEvent extends Event {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSessionEvent/session) */
    readonly session: XRSession;
}

declare var XRSessionEvent: {
    prototype: XRSessionEvent;
    new(type: string, eventInitDict: XRSessionEventInit): XRSessionEvent;
    isInstance(obj): obj is XRSessionEvent;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSpace)
 */
interface XRSpace extends EventTarget {
}

declare var XRSpace: {
    prototype: XRSpace;
    new(): XRSpace;
    isInstance(obj): obj is XRSpace;
};

interface XRSystemEventMap {
    "devicechange": Event;
}

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSystem)
 */
interface XRSystem extends EventTarget {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSystem/devicechange_event) */
    ondevicechange: ((this: XRSystem, ev: Event) => any) | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSystem/isSessionSupported) */
    isSessionSupported(mode: XRSessionMode): Promise<boolean>;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRSystem/requestSession) */
    requestSession(mode: XRSessionMode, options?: XRSessionInit): Promise<XRSession>;
    addEventListener<K extends keyof XRSystemEventMap>(type: K, listener: (this: XRSystem, ev: XRSystemEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XRSystemEventMap>(type: K, listener: (this: XRSystem, ev: XRSystemEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XRSystem: {
    prototype: XRSystem;
    new(): XRSystem;
    isInstance(obj): obj is XRSystem;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRView)
 */
interface XRView {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRView/eye) */
    readonly eye: XREye;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRView/projectionMatrix) */
    readonly projectionMatrix: Float32Array;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRView/transform) */
    readonly transform: XRRigidTransform;
}

declare var XRView: {
    prototype: XRView;
    new(): XRView;
    isInstance(obj): obj is XRView;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewerPose)
 */
interface XRViewerPose extends XRPose {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewerPose/views) */
    readonly views: XRView[];
}

declare var XRViewerPose: {
    prototype: XRViewerPose;
    new(): XRViewerPose;
    isInstance(obj): obj is XRViewerPose;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewport)
 */
interface XRViewport {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewport/height) */
    readonly height: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewport/width) */
    readonly width: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewport/x) */
    readonly x: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRViewport/y) */
    readonly y: number;
}

declare var XRViewport: {
    prototype: XRViewport;
    new(): XRViewport;
    isInstance(obj): obj is XRViewport;
};

/**
 * Available only in secure contexts.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer)
 */
interface XRWebGLLayer {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/antialias) */
    readonly antialias: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebuffer) */
    readonly framebuffer: WebGLFramebuffer | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebufferHeight) */
    readonly framebufferHeight: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/framebufferWidth) */
    readonly framebufferWidth: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/ignoreDepthValues) */
    readonly ignoreDepthValues: boolean;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/getViewport) */
    getViewport(view: XRView): XRViewport | null;
}

declare var XRWebGLLayer: {
    prototype: XRWebGLLayer;
    new(session: XRSession, context: XRWebGLRenderingContext, layerInit?: XRWebGLLayerInit): XRWebGLLayer;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XRWebGLLayer/getNativeFramebufferScaleFactor_static) */
    getNativeFramebufferScaleFactor(session: XRSession): number;
    isInstance(obj): obj is XRWebGLLayer;
};

/**
 * An XSLTProcessor applies an XSLT stylesheet transformation to an XML document to produce a new XML document as output. It has methods to load the XSLT stylesheet, to manipulate <xsl:param> parameter values, and to apply the transformation to documents.
 *
 * [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor)
 */
interface XSLTProcessor {
    flags: number;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/clearParameters) */
    clearParameters(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/getParameter) */
    getParameter(namespaceURI: string | null, localName: string): XSLTParameterValue | null;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/importStylesheet) */
    importStylesheet(style: Node): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/removeParameter) */
    removeParameter(namespaceURI: string | null, localName: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/reset) */
    reset(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/setParameter) */
    setParameter(namespaceURI: string | null, localName: string, value: XSLTParameterValue): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/transformToDocument) */
    transformToDocument(source: Node): Document;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/XSLTProcessor/transformToFragment) */
    transformToFragment(source: Node, output: Document): DocumentFragment;
    readonly DISABLE_ALL_LOADS: 1;
}

declare var XSLTProcessor: {
    prototype: XSLTProcessor;
    new(): XSLTProcessor;
    readonly DISABLE_ALL_LOADS: 1;
    isInstance(obj): obj is XSLTProcessor;
};

interface XULCommandDispatcher {
}

declare var XULCommandDispatcher: {
    prototype: XULCommandDispatcher;
    new(): XULCommandDispatcher;
    isInstance(obj): obj is XULCommandDispatcher;
};

interface XULCommandEvent extends UIEvent {
    readonly altKey: boolean;
    readonly button: number;
    readonly ctrlKey: boolean;
    readonly inputSource: number;
    readonly metaKey: boolean;
    readonly shiftKey: boolean;
    readonly sourceEvent: Event | null;
    initCommandEvent(type: string, canBubble?: boolean, cancelable?: boolean, view?: Window | null, detail?: number, ctrlKey?: boolean, altKey?: boolean, shiftKey?: boolean, metaKey?: boolean, buttonArg?: number, sourceEvent?: Event | null, inputSource?: number): void;
}

declare var XULCommandEvent: {
    prototype: XULCommandEvent;
    new(): XULCommandEvent;
    isInstance(obj): obj is XULCommandEvent;
};

interface XULElementEventMap extends ElementEventMap, GlobalEventHandlersEventMap, OnErrorEventHandlerForNodesEventMap, TouchEventHandlersEventMap {
}

interface XULElement extends Element, ElementCSSInlineStyle, GlobalEventHandlers, HTMLOrForeignElement, OnErrorEventHandlerForNodes, TouchEventHandlers {
    collapsed: boolean;
    contextMenu: string;
    readonly controllers: XULControllers;
    hidden: boolean;
    menu: string;
    observes: string;
    src: string;
    tooltip: string;
    tooltipText: string;
    click(): void;
    doCommand(): void;
    hasMenu(): boolean;
    openMenu(open: boolean): void;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULElement: {
    prototype: XULElement;
    new(): XULElement;
    isInstance(obj): obj is XULElement;
};

interface XULFrameElement extends XULElement, MozFrameLoaderOwner {
    readonly browserId: number;
    readonly contentDocument: Document | null;
    readonly contentWindow: WindowProxy | null;
    readonly docShell: nsIDocShell | null;
    openWindowInfo: nsIOpenWindowInfo | null;
    readonly webNavigation: nsIWebNavigation | null;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULFrameElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULFrameElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULFrameElement: {
    prototype: XULFrameElement;
    new(): XULFrameElement;
    isInstance(obj): obj is XULFrameElement;
};

interface XULMenuElement extends XULElement {
    activeChild: Element | null;
    readonly openedWithKey: boolean;
    handleKeyPress(keyEvent: KeyboardEvent): boolean;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULMenuElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULMenuElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULMenuElement: {
    prototype: XULMenuElement;
    new(): XULMenuElement;
    isInstance(obj): obj is XULMenuElement;
};

interface XULPopupElement extends XULElement {
    readonly anchorNode: Element | null;
    readonly isWaylandDragSource: boolean;
    readonly isWaylandPopup: boolean;
    label: string;
    position: string;
    readonly state: string;
    readonly triggerNode: Node | null;
    activateItem(itemElement: Element, options?: ActivateMenuItemOptions): void;
    getOuterScreenRect(): DOMRect;
    hidePopup(cancel?: boolean): void;
    moveTo(left: number, top: number): void;
    moveToAnchor(anchorElement?: Element | null, position?: string, x?: number, y?: number, attributesOverride?: boolean): void;
    openPopup(anchorElement?: Element | null, options?: StringOrOpenPopupOptions, x?: number, y?: number, isContextMenu?: boolean, attributesOverride?: boolean, triggerEvent?: Event | null): void;
    openPopupAtScreen(x?: number, y?: number, isContextMenu?: boolean, triggerEvent?: Event | null): void;
    openPopupAtScreenRect(position?: string, x?: number, y?: number, width?: number, height?: number, isContextMenu?: boolean, attributesOverride?: boolean, triggerEvent?: Event | null): void;
    setConstraintRect(rect: DOMRectReadOnly): void;
    sizeTo(width: number, height: number): void;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULPopupElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULPopupElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULPopupElement: {
    prototype: XULPopupElement;
    new(): XULPopupElement;
    isInstance(obj): obj is XULPopupElement;
};

interface XULResizerElement extends XULElement {
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULResizerElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULResizerElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULResizerElement: {
    prototype: XULResizerElement;
    new(): XULResizerElement;
    isInstance(obj): obj is XULResizerElement;
};

interface XULTextElement extends XULElement {
    accessKey: string;
    disabled: boolean;
    value: string;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULTextElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULTextElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULTextElement: {
    prototype: XULTextElement;
    new(): XULTextElement;
    isInstance(obj): obj is XULTextElement;
};

interface XULTreeElement extends XULElement {
    readonly columns: TreeColumns | null;
    focused: boolean;
    readonly horizontalPosition: number;
    readonly rowHeight: number;
    readonly rowWidth: number;
    readonly treeBody: Element | null;
    view: MozTreeView | null;
    beginUpdateBatch(): void;
    clearStyleAndImageCaches(): void;
    endUpdateBatch(): void;
    ensureCellIsVisible(row: number, col: TreeColumn | null): void;
    ensureRowIsVisible(index: number): void;
    getCellAt(x: number, y: number): TreeCellInfo;
    getCoordsForCellItem(row: number, col: TreeColumn, element: string): DOMRect | null;
    getFirstVisibleRow(): number;
    getLastVisibleRow(): number;
    getPageLength(): number;
    getRowAt(x: number, y: number): number;
    invalidate(): void;
    invalidateCell(row: number, col: TreeColumn | null): void;
    invalidateColumn(col: TreeColumn | null): void;
    invalidateRange(startIndex: number, endIndex: number): void;
    invalidateRow(index: number): void;
    isCellCropped(row: number, col: TreeColumn | null): boolean;
    removeImageCacheEntry(row: number, col: TreeColumn): void;
    rowCountChanged(index: number, count: number): void;
    scrollByLines(numLines: number): void;
    scrollByPages(numPages: number): void;
    scrollToRow(index: number): void;
    addEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULTreeElement, ev: XULElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof XULElementEventMap>(type: K, listener: (this: XULTreeElement, ev: XULElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}

declare var XULTreeElement: {
    prototype: XULTreeElement;
    new(): XULTreeElement;
    isInstance(obj): obj is XULTreeElement;
};

interface imgINotificationObserver {
}

declare var imgINotificationObserver: {
    prototype: imgINotificationObserver;
    new(): imgINotificationObserver;
    isInstance(obj): obj is imgINotificationObserver;
};

interface imgIRequest {
}

declare var imgIRequest: {
    prototype: imgIRequest;
    new(): imgIRequest;
    isInstance(obj): obj is imgIRequest;
};

interface nsIBrowserDOMWindow {
}

declare var nsIBrowserDOMWindow: {
    prototype: nsIBrowserDOMWindow;
    new(): nsIBrowserDOMWindow;
    isInstance(obj): obj is nsIBrowserDOMWindow;
};

interface nsICookieJarSettings {
}

declare var nsICookieJarSettings: {
    prototype: nsICookieJarSettings;
    new(): nsICookieJarSettings;
    isInstance(obj): obj is nsICookieJarSettings;
};

interface nsIDOMProcessChild {
}

declare var nsIDOMProcessChild: {
    prototype: nsIDOMProcessChild;
    new(): nsIDOMProcessChild;
    isInstance(obj): obj is nsIDOMProcessChild;
};

interface nsIDOMProcessParent {
}

declare var nsIDOMProcessParent: {
    prototype: nsIDOMProcessParent;
    new(): nsIDOMProcessParent;
    isInstance(obj): obj is nsIDOMProcessParent;
};

interface nsIDOMWindowUtils {
}

declare var nsIDOMWindowUtils: {
    prototype: nsIDOMWindowUtils;
    new(): nsIDOMWindowUtils;
    isInstance(obj): obj is nsIDOMWindowUtils;
};

interface nsIDocShell {
}

interface nsIEditor {
}

declare var nsIEditor: {
    prototype: nsIEditor;
    new(): nsIEditor;
    isInstance(obj): obj is nsIEditor;
};

interface nsIEventTarget {
}

declare var nsIEventTarget: {
    prototype: nsIEventTarget;
    new(): nsIEventTarget;
    isInstance(obj): obj is nsIEventTarget;
};

interface nsIFile {
}

declare var nsIFile: {
    prototype: nsIFile;
    new(): nsIFile;
    isInstance(obj): obj is nsIFile;
};

interface nsIGleanPing {
}

declare var nsIGleanPing: {
    prototype: nsIGleanPing;
    new(): nsIGleanPing;
    isInstance(obj): obj is nsIGleanPing;
};

interface nsILoadGroup {
}

declare var nsILoadGroup: {
    prototype: nsILoadGroup;
    new(): nsILoadGroup;
    isInstance(obj): obj is nsILoadGroup;
};

interface nsIMediaDevice {
}

declare var nsIMediaDevice: {
    prototype: nsIMediaDevice;
    new(): nsIMediaDevice;
    isInstance(obj): obj is nsIMediaDevice;
};

interface nsIOpenWindowInfo {
}

declare var nsIOpenWindowInfo: {
    prototype: nsIOpenWindowInfo;
    new(): nsIOpenWindowInfo;
    isInstance(obj): obj is nsIOpenWindowInfo;
};

interface nsIPermissionDelegateHandler {
}

declare var nsIPermissionDelegateHandler: {
    prototype: nsIPermissionDelegateHandler;
    new(): nsIPermissionDelegateHandler;
    isInstance(obj): obj is nsIPermissionDelegateHandler;
};

interface nsISHEntry {
}

declare var nsISHEntry: {
    prototype: nsISHEntry;
    new(): nsISHEntry;
    isInstance(obj): obj is nsISHEntry;
};

interface nsISHistory {
}

declare var nsISHistory: {
    prototype: nsISHistory;
    new(): nsISHistory;
    isInstance(obj): obj is nsISHistory;
};

interface nsIScreen {
}

declare var nsIScreen: {
    prototype: nsIScreen;
    new(): nsIScreen;
    isInstance(obj): obj is nsIScreen;
};

interface nsISecureBrowserUI {
}

declare var nsISecureBrowserUI: {
    prototype: nsISecureBrowserUI;
    new(): nsISecureBrowserUI;
    isInstance(obj): obj is nsISecureBrowserUI;
};

interface nsISelectionListener {
}

declare var nsISelectionListener: {
    prototype: nsISelectionListener;
    new(): nsISelectionListener;
    isInstance(obj): obj is nsISelectionListener;
};

interface nsISessionStoreRestoreData {
}

declare var nsISessionStoreRestoreData: {
    prototype: nsISessionStoreRestoreData;
    new(): nsISessionStoreRestoreData;
    isInstance(obj): obj is nsISessionStoreRestoreData;
};

interface nsISocketTransport {
}

declare var nsISocketTransport: {
    prototype: nsISocketTransport;
    new(): nsISocketTransport;
    isInstance(obj): obj is nsISocketTransport;
};

interface nsIStreamListener {
}

declare var nsIStreamListener: {
    prototype: nsIStreamListener;
    new(): nsIStreamListener;
    isInstance(obj): obj is nsIStreamListener;
};

interface nsITransportProvider {
}

declare var nsITransportProvider: {
    prototype: nsITransportProvider;
    new(): nsITransportProvider;
    isInstance(obj): obj is nsITransportProvider;
};

interface nsITreeSelection {
}

declare var nsITreeSelection: {
    prototype: nsITreeSelection;
    new(): nsITreeSelection;
    isInstance(obj): obj is nsITreeSelection;
};

interface nsIWebBrowserPersistDocumentReceiver {
}

declare var nsIWebBrowserPersistDocumentReceiver: {
    prototype: nsIWebBrowserPersistDocumentReceiver;
    new(): nsIWebBrowserPersistDocumentReceiver;
    isInstance(obj): obj is nsIWebBrowserPersistDocumentReceiver;
};

interface nsIWebNavigation {
}

declare var nsIWebNavigation: {
    prototype: nsIWebNavigation;
    new(): nsIWebNavigation;
    isInstance(obj): obj is nsIWebNavigation;
};

interface nsIWebProgress {
}

declare var nsIWebProgress: {
    prototype: nsIWebProgress;
    new(): nsIWebProgress;
    isInstance(obj): obj is nsIWebProgress;
};

interface nsIWebProgressListener {
}

declare var nsIWebProgressListener: {
    prototype: nsIWebProgressListener;
    new(): nsIWebProgressListener;
    isInstance(obj): obj is nsIWebProgressListener;
};

declare namespace AddonManagerPermissions {
    function isHostPermitted(host: string): boolean;
}

declare namespace APZHitResultFlags {
}

/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console) */
interface Console {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/assert_static) */
    assert(condition?: boolean, ...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/clear_static) */
    clear(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/count_static) */
    count(label?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/countReset_static) */
    countReset(label?: string): void;
    createInstance(options?: ConsoleInstanceOptions): ConsoleInstance;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/debug_static) */
    debug(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/dir_static) */
    dir(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/dirxml_static) */
    dirxml(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/error_static) */
    error(...data: any[]): void;
    /** @deprecated */
    exception(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/group_static) */
    group(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/groupCollapsed_static) */
    groupCollapsed(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/groupEnd_static) */
    groupEnd(): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/info_static) */
    info(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/log_static) */
    log(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/profile_static) */
    profile(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/profileEnd_static) */
    profileEnd(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/table_static) */
    table(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/time_static) */
    time(label?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/timeEnd_static) */
    timeEnd(label?: string): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/timeLog_static) */
    timeLog(label?: string, ...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/timeStamp_static) */
    timeStamp(data?: any): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/trace_static) */
    trace(...data: any[]): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/console/warn_static) */
    warn(...data: any[]): void;
}

declare var console: Console;

/** Holds useful CSS-related methods. No object with this interface are implemented: it contains only static methods and therefore is a utilitarian interface. */
declare namespace CSS {
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSS/highlights_static) */
    var highlights: HighlightRegistry;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSS/escape_static) */
    function escape(ident: string): string;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSS/registerProperty_static) */
    function registerProperty(definition: PropertyDefinition): void;
    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CSS/supports_static) */
    function supports(property: UTF8String, value: UTF8String): boolean;
    function supports(conditionText: UTF8String): boolean;
}

declare namespace FuzzingFunctions {
    function crash(reason?: string): void;
    function cycleCollect(): void;
    function enableAccessibility(): void;
    function garbageCollect(): void;
    function garbageCollectCompacting(): void;
    function memoryPressure(): void;
    function signalIPCReady(): void;
    function synthesizeKeyboardEvents(aKeyValue: string, aDictionary?: KeyboardEventInit): void;
}

declare namespace TestUtils {
    function gc(): Promise<void>;
}

declare namespace WebrtcGlobalInformation {
    var aecDebug: boolean;
    var aecDebugLogDir: string;
    function clearAllStats(): void;
    function clearLogging(): void;
    function getAllStats(callback: WebrtcGlobalStatisticsCallback, pcIdFilter?: string): void;
    function getLogging(pattern: string, callback: WebrtcGlobalLoggingCallback): void;
    function getMediaContext(): WebrtcGlobalMediaContext;
    function getStatsHistoryPcIds(callback: WebrtcGlobalStatisticsHistoryPcIdsCallback): void;
    function getStatsHistorySince(callback: WebrtcGlobalStatisticsHistoryCallback, pcIdFilter: string, after?: DOMHighResTimeStamp, sdpAfter?: DOMHighResTimeStamp): void;
}

declare namespace WorkerTestUtils {
    function currentTimerNestingLevel(): number;
}

// @ts-ignore
declare namespace ChromeUtils {
    var aliveUtilityProcesses: number;
    var domProcessChild: nsIDOMProcessChild | null;
    var recentJSDevError: any;
    function CreateOriginAttributesFromOriginSuffix(suffix: string): OriginAttributesDictionary;
    function addProfilerMarker(name: UTF8String, options?: ProfilerMarkerOptions | DOMHighResTimeStamp, text?: UTF8String): void;
    function base64URLDecode(string: string, options: Base64URLDecodeOptions): ArrayBuffer;
    function base64URLEncode(source: BufferSource, options: Base64URLEncodeOptions): string;
    function clearRecentJSDevError(): void;
    function clearStyleSheetCache(): void;
    function clearStyleSheetCacheByBaseDomain(baseDomain: UTF8String): void;
    function clearStyleSheetCacheByPrincipal(principal: Principal): void;
    function collectPerfStats(): Promise<string>;
    function collectScrollingData(): Promise<InteractionData>;
    function compileScript(url: string, options?: CompileScriptOptionsDictionary): Promise<PrecompiledScript>;
    function consumeInteractionData(): Record<string, InteractionData>;
    function createError(message: string, stack?: any): any;
    function createOriginAttributesFromOrigin(origin: string): OriginAttributesDictionary;
    function dateNow(): number;
    function defineESModuleGetters(target: any, modules: any): void;
    function defineLazyGetter(aTarget: any, aName: any, aLambda: any): void;
    function defineModuleGetter(target: any, id: string, resourceURI: string): void;
    function endWheelTransaction(): void;
    function ensureJSOracleStarted(): void;
    function fillNonDefaultOriginAttributes(originAttrs?: OriginAttributesDictionary): OriginAttributesDictionary;
    function generateQI(interfaces: any[]): MozQueryInterface;
    function getAllDOMProcesses(): nsIDOMProcessParent[];
    function getAllPossibleUtilityActorNames(): UTF8String[];
    function getBaseDomainFromPartitionKey(partitionKey: string): string;
    function getCallerLocation(principal: Principal): any;
    function getClassName(obj: any, unwrap?: boolean): string;
    function getFormAutofillConfidences(elements: Element[]): FormAutofillConfidences[];
    function getGMPContentDecryptionModuleInformation(): Promise<CDMInformation[]>;
    function getLibcConstants(): LibcConstants;
    function getObjectNodeId(obj: any): NodeId;
    function getPartitionKeyFromURL(url: string): string;
    function getPopupControlState(): PopupBlockerState;
    function getWMFContentDecryptionModuleInformation(): Promise<CDMInformation[]>;
    function getXPCOMErrorName(aErrorCode: number): UTF8String;
    function hasReportingHeaderForOrigin(aOrigin: string): boolean;
    function idleDispatch(callback: IdleRequestCallback, options?: IdleRequestOptions): void;
    function _import_(aResourceURI: UTF8String, aTargetObj?: any): any;
    function importESModule(aResourceURI: string, options?: ImportESModuleOptionsDictionary): any;
    function isClassifierBlockingErrorCode(aError: number): boolean;
    function isDOMObject(obj: any, unwrap?: boolean): boolean;
    function isDarkBackground(element: Element): boolean;
    function isDevToolsOpened(): boolean;
    function isISOStyleDate(str: UTF8String): boolean;
    function isOriginAttributesEqual(aA?: OriginAttributesDictionary, aB?: OriginAttributesDictionary): boolean;
    function lastExternalProtocolIframeAllowed(): number;
    function nondeterministicGetWeakMapKeys(map: any): any;
    function nondeterministicGetWeakSetKeys(aSet: any): any;
    function notifyDevToolsClosed(): void;
    function notifyDevToolsOpened(): void;
    function originAttributesMatchPattern(originAttrs?: OriginAttributesDictionary, pattern?: OriginAttributesPatternDictionary): boolean;
    function originAttributesToSuffix(originAttrs?: OriginAttributesDictionary): string;
    function privateNoteIntentionalCrash(): void;
    function readHeapSnapshot(filePath: string): HeapSnapshot;
    function registerProcessActor(aName: UTF8String, aOptions?: ProcessActorOptions): void;
    function registerWindowActor(aName: UTF8String, aOptions?: WindowActorOptions): void;
    function releaseAssert(condition: boolean, message?: string): void;
    function requestIOActivity(): Promise<IOActivityDataDictionary[]>;
    function requestProcInfo(): Promise<ParentProcInfoDictionary>;
    function resetLastExternalProtocolIframeAllowed(): void;
    function saveHeapSnapshot(boundaries?: HeapSnapshotBoundaries): string;
    function saveHeapSnapshotGetId(boundaries?: HeapSnapshotBoundaries): string;
    function setPerfStatsCollectionMask(aCollectionMask: number): void;
    function shallowClone(obj: any, target?: any): any;
    function shouldResistFingerprinting(target: JSRFPTarget, overriddenFingerprintingSettings: number | null): boolean;
    function unregisterProcessActor(aName: UTF8String): void;
    function unregisterWindowActor(aName: UTF8String): void;
    function unwaiveXrays(val: any): any;
    function vsyncEnabled(): boolean;
    function waiveXrays(val: any): any;
}

// @ts-ignore
declare namespace InspectorUtils {
    function addPseudoClassLock(element: Element, pseudoClass: string, enabled?: boolean): void;
    function clearPseudoClassLocks(element: Element): void;
    function colorToRGBA(colorString: UTF8String, doc?: Document | null): InspectorRGBATuple | null;
    function containingBlockOf(element: Element): Element | null;
    function cssPropertyIsShorthand(property: UTF8String): boolean;
    function cssPropertySupportsType(property: UTF8String, type: InspectorPropertyType): boolean;
    function getAllStyleSheetCSSStyleRules(sheet: CSSStyleSheet): CSSRule[];
    function getAllStyleSheets(document: Document, documentOnly?: boolean): StyleSheet[];
    function getBlockLineCounts(element: Element): number[] | null;
    function getCSSPropertyNames(options?: PropertyNamesOptions): string[];
    function getCSSPropertyPrefs(): PropertyPref[];
    function getCSSPseudoElementNames(): string[];
    function getCSSRegisteredProperties(document: Document): InspectorCSSPropertyDefinition[];
    function getCSSStyleRules(element: Element, pseudo?: string, relevantLinkVisited?: boolean): CSSStyleRule[];
    function getCSSValuesForProperty(property: UTF8String): string[];
    function getChildrenForNode(node: Node, showingAnonymousContent: boolean, includeAssignedNodes: boolean): Node[];
    function getContentState(element: Element): number;
    function getOverflowingChildrenOfElement(element: Element): NodeList;
    function getParentForNode(node: Node, showingAnonymousContent: boolean): Node | null;
    function getRegisteredCssHighlights(document: Document, activeOnly?: boolean): string[];
    function getRelativeRuleLine(rule: CSSRule): number;
    function getRuleColumn(rule: CSSRule): number;
    function getRuleLine(rule: CSSRule): number;
    function getSubpropertiesForCSSProperty(property: UTF8String): string[];
    function getUsedFontFaces(range: Range, maxRanges?: number, skipCollapsedWhitespace?: boolean): InspectorFontFace[];
    function hasPseudoClassLock(element: Element, pseudoClass: string): boolean;
    function hasRulesModifiedByCSSOM(sheet: CSSStyleSheet): boolean;
    function isCustomElementName(name: string | null, namespaceURI: string | null): boolean;
    function isElementThemed(element: Element): boolean;
    function isIgnorableWhitespace(dataNode: CharacterData): boolean;
    function isInheritedProperty(document: Document, property: UTF8String): boolean;
    function isValidCSSColor(colorString: UTF8String): boolean;
    function parseStyleSheet(sheet: CSSStyleSheet, input: UTF8String): void;
    function removeContentState(element: Element, state: number, clearActiveDocument?: boolean): boolean;
    function removePseudoClassLock(element: Element, pseudoClass: string): void;
    function rgbToColorName(r: number, g: number, b: number): UTF8String;
    function setContentState(element: Element, state: number): boolean;
    function supports(conditionText: UTF8String, options?: SupportsOptions): boolean;
}

// @ts-ignore
declare namespace IOUtils {
    var profileBeforeChange: any;
    var sendTelemetry: any;
    function computeHexDigest(path: string, method: HashAlgorithm): Promise<UTF8String>;
    function copy(sourcePath: string, destPath: string, options?: CopyOptions): Promise<void>;
    function createUniqueDirectory(parent: string, prefix: string, permissions?: number): Promise<string>;
    function createUniqueFile(parent: string, prefix: string, permissions?: number): Promise<string>;
    function delMacXAttr(path: string, attr: UTF8String): Promise<void>;
    function exists(path: string): Promise<boolean>;
    function getChildren(path: string, options?: GetChildrenOptions): Promise<string[]>;
    function getDirectory(...components: string[]): Promise<nsIFile>;
    function getFile(...components: string[]): Promise<nsIFile>;
    function getMacXAttr(path: string, attr: UTF8String): Promise<Uint8Array>;
    function getWindowsAttributes(path: string): Promise<WindowsFileAttributes>;
    function hasMacXAttr(path: string, attr: UTF8String): Promise<boolean>;
    function launchProcess(argv: UnixString[], options: LaunchOptions): number;
    function makeDirectory(path: string, options?: MakeDirectoryOptions): Promise<void>;
    function move(sourcePath: string, destPath: string, options?: MoveOptions): Promise<void>;
    function openFileForSyncReading(path: string): SyncReadFile;
    function read(path: string, opts?: ReadOptions): Promise<Uint8Array>;
    function readJSON(path: string, opts?: ReadUTF8Options): Promise<any>;
    function readUTF8(path: string, opts?: ReadUTF8Options): Promise<UTF8String>;
    function remove(path: string, options?: RemoveOptions): Promise<void>;
    function setAccessTime(path: string, access?: number): Promise<number>;
    function setMacXAttr(path: string, attr: UTF8String, value: Uint8Array): Promise<void>;
    function setModificationTime(path: string, modification?: number): Promise<number>;
    function setPermissions(path: string, permissions: number, honorUmask?: boolean): Promise<void>;
    function setWindowsAttributes(path: string, attrs?: WindowsFileAttributes): Promise<void>;
    function stat(path: string): Promise<FileInfo>;
    function write(path: string, data: Uint8Array, options?: WriteOptions): Promise<number>;
    function writeJSON(path: string, value: any, options?: WriteOptions): Promise<number>;
    function writeUTF8(path: string, string: UTF8String, options?: WriteOptions): Promise<number>;
}

declare namespace L10nOverlays {
    function translateElement(element: Element, translation?: L10nMessage): L10nOverlaysError[] | null;
}

declare namespace MediaControlService {
    function generateMediaControlKey(aKey: MediaControlKey): void;
    function getCurrentActiveMediaMetadata(): MediaMetadataInit;
    function getCurrentMediaSessionPlaybackState(): MediaSessionPlaybackState;
}

// @ts-ignore
declare namespace PathUtils {
    var localProfileDir: string;
    var profileDir: string;
    var tempDir: string;
    var xulLibraryPath: string;
    function filename(path: string): string;
    function getLocalProfileDir(): Promise<string>;
    function getProfileDir(): Promise<string>;
    function getTempDir(): Promise<string>;
    function getXulLibraryPath(): Promise<string>;
    function isAbsolute(path: string): boolean;
    function join(...components: string[]): string;
    function joinRelative(base: string, relativePath: string): string;
    function normalize(path: string): string;
    function parent(path: string, depth?: number): string | null;
    function split(path: string): string[];
    function splitRelative(path: string, options?: SplitRelativeOptions): string[];
    function toExtendedWindowsPath(path: string): string;
    function toFileURI(path: string): UTF8String;
}

declare namespace PlacesObservers {
    function addListener(eventTypes: PlacesEventType[], listener: PlacesEventCallback): void;
    function addListener(eventTypes: PlacesEventType[], listener: PlacesWeakCallbackWrapper): void;
    function notifyListeners(events: PlacesEvent[]): void;
    function removeListener(eventTypes: PlacesEventType[], listener: PlacesEventCallback): void;
    function removeListener(eventTypes: PlacesEventType[], listener: PlacesWeakCallbackWrapper): void;
}

declare namespace PromiseDebugging {
    function addUncaughtRejectionObserver(o: UncaughtRejectionObserver): void;
    function getAllocationStack(p: any): any;
    function getFullfillmentStack(p: any): any;
    function getPromiseID(p: any): string;
    function getRejectionStack(p: any): any;
    function getState(p: any): PromiseDebuggingStateHolder;
    function removeUncaughtRejectionObserver(o: UncaughtRejectionObserver): boolean;
}

declare namespace SessionStoreUtils {
    function addDynamicFrameFilteredListener(target: EventTarget, type: string, listener: any, useCapture: boolean, mozSystemGroup?: boolean): nsISupports | null;
    function collectDocShellCapabilities(docShell: nsIDocShell): string;
    function collectFormData(window: WindowProxy): CollectedData | null;
    function collectScrollPosition(window: WindowProxy): CollectedData | null;
    function constructSessionStoreRestoreData(): nsISessionStoreRestoreData;
    function forEachNonDynamicChildFrame(window: WindowProxy, callback: SessionStoreUtilsFrameCallback): void;
    function initializeRestore(browsingContext: CanonicalBrowsingContext, data: nsISessionStoreRestoreData | null): Promise<void>;
    function removeDynamicFrameFilteredListener(target: EventTarget, type: string, listener: nsISupports, useCapture: boolean, mozSystemGroup?: boolean): void;
    function restoreDocShellCapabilities(docShell: nsIDocShell, disallowCapabilities: string): void;
    function restoreDocShellState(browsingContext: CanonicalBrowsingContext, url: UTF8String | null, docShellCaps: string | null): Promise<void>;
    function restoreFormData(document: Document, data?: CollectedData): boolean;
    function restoreScrollPosition(frame: Window, data?: CollectedData): void;
    function restoreSessionStorageFromParent(browsingContext: CanonicalBrowsingContext, sessionStorage: Record<UTF8String, Record<string, string>>): void;
}

// @ts-ignore
declare namespace TelemetryStopwatch {
    function cancel(histogram: HistogramID, obj?: any): boolean;
    function cancelKeyed(histogram: HistogramID, key: HistogramKey, obj?: any): boolean;
    function finish(histogram: HistogramID, obj?: any, canceledOkay?: boolean): boolean;
    function finishKeyed(histogram: HistogramID, key: HistogramKey, obj?: any, canceledOkay?: boolean): boolean;
    function running(histogram: HistogramID, obj?: any): boolean;
    function runningKeyed(histogram: HistogramID, key: HistogramKey, obj?: any): boolean;
    function setTestModeEnabled(testing?: boolean): void;
    function start(histogram: HistogramID, obj?: any, options?: TelemetryStopwatchOptions): boolean;
    function startKeyed(histogram: HistogramID, key: HistogramKey, obj?: any, options?: TelemetryStopwatchOptions): boolean;
    function timeElapsed(histogram: HistogramID, obj?: any, canceledOkay?: boolean): number;
    function timeElapsedKeyed(histogram: HistogramID, key: HistogramKey, obj?: any, canceledOkay?: boolean): number;
}

declare namespace UniFFIScaffolding {
    function callAsync(id: UniFFIFunctionId, ...args: UniFFIScaffoldingType[]): Promise<UniFFIScaffoldingCallResult>;
    function callSync(id: UniFFIFunctionId, ...args: UniFFIScaffoldingType[]): UniFFIScaffoldingCallResult;
    function deregisterCallbackHandler(interfaceId: UniFFICallbackInterfaceId): void;
    function readPointer(id: UniFFIPointerId, buff: ArrayBuffer, position: number): UniFFIPointer;
    function registerCallbackHandler(interfaceId: UniFFICallbackInterfaceId, handler: UniFFICallbackHandler): void;
    function writePointer(id: UniFFIPointerId, ptr: UniFFIPointer, buff: ArrayBuffer, position: number): void;
}

declare namespace UserInteraction {
    function cancel(id: string, obj?: any): boolean;
    function finish(id: string, obj?: any, additionalText?: UTF8String): boolean;
    function running(id: string, obj?: any): boolean;
    function start(id: string, value: UTF8String, obj?: any): boolean;
    function update(id: string, value: UTF8String, obj?: any): boolean;
}

interface AnyCallback {
    (value: any): any;
}

interface AudioWorkletProcessorConstructor {
    (options: any): AudioWorkletProcessor;
}

interface BlobCallback {
    (blob: Blob | null): void;
}

interface ChainedOperation {
    (): any;
}

interface ConsoleInstanceDumpCallback {
    (message: string): void;
}

interface CustomElementConstructor {
    (): any;
}

interface CustomElementCreationCallback {
    (name: string): void;
}

interface DebuggerNotificationCallback {
    (n: DebuggerNotification): void;
}

interface DecodeErrorCallback {
    (error: DOMException): void;
}

interface DecodeSuccessCallback {
    (decodedData: AudioBuffer): void;
}

interface EncodedVideoChunkOutputCallback {
    (chunk: EncodedVideoChunk, metadata?: EncodedVideoChunkMetadata): void;
}

interface ErrorCallback {
    (err: DOMException): void;
}

interface FileCallback {
    (file: File): void;
}

interface FileSystemEntriesCallback {
    (entries: FileSystemEntry[]): void;
}

interface FileSystemEntryCallback {
    (entry: FileSystemEntry): void;
}

interface FontFaceSetForEachCallback {
    (value: FontFace, key: FontFace, set: FontFaceSet): void;
}

interface FrameRequestCallback {
    (time: DOMHighResTimeStamp): void;
}

interface FunctionStringCallback {
    (data: string): void;
}

interface GenerateAssertionCallback {
    (contents: string, origin: string, options: RTCIdentityProviderOptions): RTCIdentityAssertionResult | PromiseLike<RTCIdentityAssertionResult>;
}

interface IdleRequestCallback {
    (deadline: IdleDeadline): void;
}

interface InstallTriggerCallback {
    (url: string, status: number): void;
}

interface IntersectionCallback {
    (entries: IntersectionObserverEntry[], observer: IntersectionObserver): void;
}

interface LockGrantedCallback {
    (lock: Lock | null): any;
}

interface MediaSessionActionHandler {
    (details: MediaSessionActionDetails): void;
}

interface MutationCallback {
    (mutations: MutationRecord[], observer: MutationObserver): void;
}

interface NavigatorUserMediaErrorCallback {
    (error: MediaStreamError): void;
}

interface NavigatorUserMediaSuccessCallback {
    (stream: MediaStream): void;
}

interface NotificationPermissionCallback {
    (permission: NotificationPermission): void;
}

interface OnBeforeUnloadEventHandlerNonNull {
    (event: Event): string | null;
}

interface OnErrorEventHandlerNonNull {
    (event: Event | string, source?: string, lineno?: number, column?: number, error?: any): any;
}

interface PeerConnectionLifecycleCallback {
    (pc: RTCPeerConnection, windowId: number, eventType: RTCLifecycleEvent): void;
}

interface PerformanceObserverCallback {
    (entries: PerformanceObserverEntryList, observer: PerformanceObserver): void;
}

interface PlacesEventCallback {
    (events: PlacesEvent[]): void;
}

interface PositionCallback {
    (position: GeolocationPosition): void;
}

interface PositionErrorCallback {
    (positionError: GeolocationPositionError): void;
}

interface PrintCallback {
    (ctx: MozCanvasPrintState): void;
}

interface PromiseDocumentFlushedCallback {
    (): any;
}

interface PromiseReturner {
    (): any;
}

interface QueuingStrategySize {
    (chunk?: any): number;
}

interface RTCPeerConnectionErrorCallback {
    (error: DOMException): void;
}

interface RTCSessionDescriptionCallback {
    (description: RTCSessionDescriptionInit): void;
}

interface ReportingObserverCallback {
    (reports: Report[], observer: ReportingObserver): void;
}

interface ResizeObserverCallback {
    (entries: ResizeObserverEntry[], observer: ResizeObserver): void;
}

interface SchedulerPostTaskCallback {
    (): any;
}

interface SessionStoreUtilsFrameCallback {
    (frame: WindowProxy, index: number): void;
}

interface SetDeleteBooleanCallback {
    (value: boolean, index: number): void;
}

interface SetDeleteInterfaceCallback {
    (value: TestInterfaceObservableArray, index: number): void;
}

interface SetDeleteObjectCallback {
    (value: any, index: number): void;
}

interface TestThrowingCallback {
    (): void;
}

interface UniFFICallbackHandler {
    (objectId: UniFFICallbackObjectHandle, methodId: UniFFICallbackMethodId, aArgs: ArrayBuffer): void;
}

interface ValidateAssertionCallback {
    (assertion: string, origin: string): RTCIdentityValidationResult | PromiseLike<RTCIdentityValidationResult>;
}

interface VideoFrameOutputCallback {
    (output: VideoFrame): void;
}

interface VoidFunction {
    (): void;
}

interface WebCodecsErrorCallback {
    (error: DOMException): void;
}

interface WebExtensionLocalizeCallback {
    (unlocalizedText: string): string;
}

interface WebrtcGlobalLoggingCallback {
    (logMessages: string[]): void;
}

interface WebrtcGlobalStatisticsCallback {
    (reports: WebrtcGlobalStatisticsReport): void;
}

interface WebrtcGlobalStatisticsHistoryCallback {
    (reports: WebrtcGlobalStatisticsReport): void;
}

interface WebrtcGlobalStatisticsHistoryPcIdsCallback {
    (pcIds: string[]): void;
}

interface XRFrameRequestCallback {
    (time: DOMHighResTimeStamp, frame: XRFrame): void;
}

interface mozPacketCallback {
    (level: number, type: mozPacketDumpType, sending: boolean, packet: ArrayBuffer): void;
}

interface HTMLElementTagNameMap {
    "a": HTMLAnchorElement;
    "abbr": HTMLElement;
    "address": HTMLElement;
    "area": HTMLAreaElement;
    "article": HTMLElement;
    "aside": HTMLElement;
    "audio": HTMLAudioElement;
    "b": HTMLElement;
    "base": HTMLBaseElement;
    "bdi": HTMLElement;
    "bdo": HTMLElement;
    "blockquote": HTMLQuoteElement;
    "body": HTMLBodyElement;
    "br": HTMLBRElement;
    "button": HTMLButtonElement;
    "canvas": HTMLCanvasElement;
    "caption": HTMLTableCaptionElement;
    "cite": HTMLElement;
    "code": HTMLElement;
    "col": HTMLTableColElement;
    "colgroup": HTMLTableColElement;
    "data": HTMLDataElement;
    "datalist": HTMLDataListElement;
    "dd": HTMLElement;
    "del": HTMLModElement;
    "details": HTMLDetailsElement;
    "dfn": HTMLElement;
    "dialog": HTMLDialogElement;
    "div": HTMLDivElement;
    "dl": HTMLDListElement;
    "dt": HTMLElement;
    "em": HTMLElement;
    "embed": HTMLEmbedElement;
    "fencedframe": HTMLFencedFrameElement;
    "fieldset": HTMLFieldSetElement;
    "figcaption": HTMLElement;
    "figure": HTMLElement;
    "footer": HTMLElement;
    "form": HTMLFormElement;
    "h1": HTMLHeadingElement;
    "h2": HTMLHeadingElement;
    "h3": HTMLHeadingElement;
    "h4": HTMLHeadingElement;
    "h5": HTMLHeadingElement;
    "h6": HTMLHeadingElement;
    "head": HTMLHeadElement;
    "header": HTMLElement;
    "hgroup": HTMLElement;
    "hr": HTMLHRElement;
    "html": HTMLHtmlElement;
    "i": HTMLElement;
    "iframe": HTMLIFrameElement;
    "img": HTMLImageElement;
    "input": HTMLInputElement;
    "ins": HTMLModElement;
    "kbd": HTMLElement;
    "label": HTMLLabelElement;
    "legend": HTMLLegendElement;
    "li": HTMLLIElement;
    "link": HTMLLinkElement;
    "main": HTMLElement;
    "map": HTMLMapElement;
    "mark": HTMLElement;
    "menu": HTMLMenuElement;
    "meta": HTMLMetaElement;
    "meter": HTMLMeterElement;
    "model": HTMLModelElement;
    "nav": HTMLElement;
    "noscript": HTMLElement;
    "object": HTMLObjectElement;
    "ol": HTMLOListElement;
    "optgroup": HTMLOptGroupElement;
    "option": HTMLOptionElement;
    "output": HTMLOutputElement;
    "p": HTMLParagraphElement;
    "picture": HTMLPictureElement;
    "portal": HTMLPortalElement;
    "pre": HTMLPreElement;
    "progress": HTMLProgressElement;
    "q": HTMLQuoteElement;
    "rp": HTMLElement;
    "rt": HTMLElement;
    "ruby": HTMLElement;
    "s": HTMLElement;
    "samp": HTMLElement;
    "script": HTMLScriptElement;
    "search": HTMLElement;
    "section": HTMLElement;
    "select": HTMLSelectElement;
    "slot": HTMLSlotElement;
    "small": HTMLElement;
    "source": HTMLSourceElement;
    "span": HTMLSpanElement;
    "strong": HTMLElement;
    "style": HTMLStyleElement;
    "sub": HTMLElement;
    "summary": HTMLElement;
    "sup": HTMLElement;
    "table": HTMLTableElement;
    "tbody": HTMLTableSectionElement;
    "td": HTMLTableCellElement;
    "template": HTMLTemplateElement;
    "textarea": HTMLTextAreaElement;
    "tfoot": HTMLTableSectionElement;
    "th": HTMLTableCellElement;
    "thead": HTMLTableSectionElement;
    "time": HTMLTimeElement;
    "title": HTMLTitleElement;
    "tr": HTMLTableRowElement;
    "track": HTMLTrackElement;
    "u": HTMLElement;
    "ul": HTMLUListElement;
    "var": HTMLElement;
    "video": HTMLVideoElement;
    "wbr": HTMLElement;
}

interface HTMLElementDeprecatedTagNameMap {
    "acronym": HTMLElement;
    "applet": HTMLUnknownElement;
    "basefont": HTMLElement;
    "bgsound": HTMLUnknownElement;
    "big": HTMLElement;
    "blink": HTMLUnknownElement;
    "center": HTMLElement;
    "dir": HTMLDirectoryElement;
    "font": HTMLFontElement;
    "frame": HTMLFrameElement;
    "frameset": HTMLFrameSetElement;
    "isindex": HTMLUnknownElement;
    "keygen": HTMLUnknownElement;
    "listing": HTMLPreElement;
    "marquee": HTMLMarqueeElement;
    "menuitem": HTMLElement;
    "multicol": HTMLUnknownElement;
    "nextid": HTMLUnknownElement;
    "nobr": HTMLElement;
    "noembed": HTMLElement;
    "noframes": HTMLElement;
    "param": HTMLParamElement;
    "plaintext": HTMLElement;
    "rb": HTMLElement;
    "rtc": HTMLElement;
    "spacer": HTMLUnknownElement;
    "strike": HTMLElement;
    "tt": HTMLElement;
    "xmp": HTMLPreElement;
}

interface SVGElementTagNameMap {
    "a": SVGAElement;
    "animate": SVGAnimateElement;
    "animateMotion": SVGAnimateMotionElement;
    "animateTransform": SVGAnimateTransformElement;
    "circle": SVGCircleElement;
    "clipPath": SVGClipPathElement;
    "defs": SVGDefsElement;
    "desc": SVGDescElement;
    "ellipse": SVGEllipseElement;
    "feBlend": SVGFEBlendElement;
    "feColorMatrix": SVGFEColorMatrixElement;
    "feComponentTransfer": SVGFEComponentTransferElement;
    "feComposite": SVGFECompositeElement;
    "feConvolveMatrix": SVGFEConvolveMatrixElement;
    "feDiffuseLighting": SVGFEDiffuseLightingElement;
    "feDisplacementMap": SVGFEDisplacementMapElement;
    "feDistantLight": SVGFEDistantLightElement;
    "feDropShadow": SVGFEDropShadowElement;
    "feFlood": SVGFEFloodElement;
    "feFuncA": SVGFEFuncAElement;
    "feFuncB": SVGFEFuncBElement;
    "feFuncG": SVGFEFuncGElement;
    "feFuncR": SVGFEFuncRElement;
    "feGaussianBlur": SVGFEGaussianBlurElement;
    "feImage": SVGFEImageElement;
    "feMerge": SVGFEMergeElement;
    "feMergeNode": SVGFEMergeNodeElement;
    "feMorphology": SVGFEMorphologyElement;
    "feOffset": SVGFEOffsetElement;
    "fePointLight": SVGFEPointLightElement;
    "feSpecularLighting": SVGFESpecularLightingElement;
    "feSpotLight": SVGFESpotLightElement;
    "feTile": SVGFETileElement;
    "feTurbulence": SVGFETurbulenceElement;
    "filter": SVGFilterElement;
    "foreignObject": SVGForeignObjectElement;
    "g": SVGGElement;
    "image": SVGImageElement;
    "line": SVGLineElement;
    "linearGradient": SVGLinearGradientElement;
    "marker": SVGMarkerElement;
    "mask": SVGMaskElement;
    "metadata": SVGMetadataElement;
    "mpath": SVGMPathElement;
    "path": SVGPathElement;
    "pattern": SVGPatternElement;
    "polygon": SVGPolygonElement;
    "polyline": SVGPolylineElement;
    "radialGradient": SVGRadialGradientElement;
    "rect": SVGRectElement;
    "script": SVGScriptElement;
    "set": SVGSetElement;
    "stop": SVGStopElement;
    "style": SVGStyleElement;
    "svg": SVGSVGElement;
    "switch": SVGSwitchElement;
    "symbol": SVGSymbolElement;
    "text": SVGTextElement;
    "textPath": SVGTextPathElement;
    "title": SVGTitleElement;
    "tspan": SVGTSpanElement;
    "use": SVGUseElement;
    "view": SVGViewElement;
}

interface MathMLElementTagNameMap {
    "annotation": MathMLElement;
    "annotation-xml": MathMLElement;
    "maction": MathMLElement;
    "math": MathMLElement;
    "merror": MathMLElement;
    "mfrac": MathMLElement;
    "mi": MathMLElement;
    "mmultiscripts": MathMLElement;
    "mn": MathMLElement;
    "mo": MathMLElement;
    "mover": MathMLElement;
    "mpadded": MathMLElement;
    "mphantom": MathMLElement;
    "mprescripts": MathMLElement;
    "mroot": MathMLElement;
    "mrow": MathMLElement;
    "ms": MathMLElement;
    "mspace": MathMLElement;
    "msqrt": MathMLElement;
    "mstyle": MathMLElement;
    "msub": MathMLElement;
    "msubsup": MathMLElement;
    "msup": MathMLElement;
    "mtable": MathMLElement;
    "mtd": MathMLElement;
    "mtext": MathMLElement;
    "mtr": MathMLElement;
    "munder": MathMLElement;
    "munderover": MathMLElement;
    "semantics": MathMLElement;
}

/** @deprecated Directly use HTMLElementTagNameMap or SVGElementTagNameMap as appropriate, instead. */
type ElementTagNameMap = HTMLElementTagNameMap & Pick<SVGElementTagNameMap, Exclude<keyof SVGElementTagNameMap, keyof HTMLElementTagNameMap>>;

declare var Audio: {
    new(src?: string): HTMLAudioElement;
};
declare var Image: {
    new(width?: number, height?: number): HTMLImageElement;
};
declare var Option: {
    new(text?: string, value?: string, defaultSelected?: boolean, selected?: boolean): HTMLOptionElement;
};
declare var webkitSpeechGrammar: {
    new(): SpeechGrammar;
};
declare var webkitSpeechGrammarList: {
    new(): SpeechGrammarList;
};
declare var webkitSpeechRecognition: {
    new(): SpeechRecognition;
};
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/currentFrame) */
declare var currentFrame: number;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/currentTime) */
declare var currentTime: number;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/sampleRate) */
declare var sampleRate: number;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AudioWorkletGlobalScope/registerProcessor) */
declare function registerProcessor(name: string, processorCtor: AudioWorkletProcessorConstructor): void;
// @ts-ignore
declare function dump(str?: string): void;
type AlgorithmIdentifier = any;
type Base64URLString = string;
type BinaryData = ArrayBuffer | ArrayBufferView;
type BlobPart = BufferSource | Blob | UTF8String;
type BodyInit = XMLHttpRequestBodyInit;
type COSEAlgorithmIdentifier = number;
type CanvasImageSource = HTMLOrSVGImageElement | HTMLCanvasElement | HTMLVideoElement | OffscreenCanvas | ImageBitmap | VideoFrame;
type CanvasSource = HTMLCanvasElement | OffscreenCanvas;
type ClipboardItemData = Promise<ClipboardItemDataType>;
type ClipboardItemDataType = string | Blob;
type ClipboardItems = ClipboardItem[];
type CollectedFormDataValue = any;
type ConstrainBoolean = boolean | ConstrainBooleanParameters;
type ConstrainDOMString = string | string[] | ConstrainDOMStringParameters;
type ConstrainDouble = number | ConstrainDoubleRange;
type ConstrainLong = number | ConstrainLongRange;
type DOMHighResTimeStamp = number;
type DOMTimeStamp = number;
type EpochTimeStamp = number;
type FileSystemWriteChunkType = BufferSource | Blob | UTF8String | WriteParams;
type Float32List = Float32Array | GLfloat[];
type FormDataEntryValue = Blob | Directory | string;
type FormDataValue = any;
type GLbitfield = number;
type GLboolean = boolean;
type GLclampf = number;
type GLenum = number;
type GLfloat = number;
type GLint = number;
type GLint64 = number;
type GLintptr = number;
type GLsizei = number;
type GLsizeiptr = number;
type GLuint = number;
type GLuint64 = number;
type GPUBindingResource = GPUSampler | GPUTextureView | GPUBufferBinding;
type GPUBufferDynamicOffset = number;
type GPUBufferUsageFlags = number;
type GPUColor = number[] | GPUColorDict;
type GPUColorWriteFlags = number;
type GPUDepthBias = number;
type GPUExtent3D = GPUIntegerCoordinate[] | GPUExtent3DDict;
type GPUFlagsConstant = number;
type GPUIndex32 = number;
type GPUIntegerCoordinate = number;
type GPUIntegerCoordinateOut = number;
type GPUMapModeFlags = number;
type GPUOrigin2D = GPUIntegerCoordinate[] | GPUOrigin2DDict;
type GPUOrigin3D = GPUIntegerCoordinate[] | GPUOrigin3DDict;
type GPUSampleMask = number;
type GPUShaderStageFlags = number;
type GPUSignedOffset32 = number;
type GPUSize32 = number;
type GPUSize32Out = number;
type GPUSize64 = number;
type GPUSize64Out = number;
type GPUStencilValue = number;
type GPUTextureUsageFlags = number;
type GeometryNode = Text | Element | Document;
type HTMLOrSVGImageElement = HTMLImageElement | SVGImageElement;
type HeadersInit = string[][] | Record<string, string>;
type HistogramID = string;
type HistogramKey = string;
type ImageBitmapSource = CanvasImageSource | Blob | CanvasRenderingContext2D | ImageData;
type Int32List = Int32Array | GLint[];
type KeyFormat = string;
type KeyType = string;
type KeyUsage = string;
type L10nArgs = Record<UTF8String, UTF8String | number | null>;
type L10nKey = UTF8String | L10nIdArgs;
type L10nResourceId = UTF8String | ResourceId;
type MatchGlobOrString = MatchGlob | UTF8String;
type MatchPatternSetOrStringSequence = MatchPatternSet | string[];
type MessageEventSource = WindowProxy | MessagePort | ServiceWorker;
type NodeId = number;
type NodeSize = number;
type OffscreenRenderingContext = OffscreenCanvasRenderingContext2D | ImageBitmapRenderingContext | WebGLRenderingContext | WebGL2RenderingContext | GPUCanvasContext;
type OnBeforeUnloadEventHandler = OnBeforeUnloadEventHandlerNonNull | null;
type OnErrorEventHandler = OnErrorEventHandlerNonNull | null;
type PerformanceEntryList = PerformanceEntry[];
type PushMessageDataInit = BufferSource | string;
type RTCRtpTransform = RTCRtpScriptTransform;
type ReadableStreamReader = ReadableStreamDefaultReader | ReadableStreamBYOBReader;
type ReportList = Report[];
type RequestInfo = Request | string;
type SanitizerAttribute = string | SanitizerAttributeNamespace;
type SanitizerElement = string | SanitizerElementNamespace;
type SanitizerElementWithAttributes = string | SanitizerElementNamespaceWithAttributes;
type SanitizerInput = DocumentFragment | Document;
type StringOrOpenPopupOptions = string | OpenPopupOptions;
type StructuredClonable = any;
type Uint32List = Uint32Array | GLuint[];
type UniFFICallbackInterfaceId = number;
type UniFFICallbackMethodId = number;
type UniFFICallbackObjectHandle = number;
type UniFFIFunctionId = number;
type UniFFIPointerId = number;
type UniFFIScaffoldingType = number | ArrayBuffer | UniFFIPointer;
type UnixString = UTF8String | Uint8Array;
type UnrestrictedDoubleOrKeyframeAnimationOptions = number | KeyframeAnimationOptions;
type VibratePattern = number | number[];
type XMLHttpRequestBodyInit = Blob | BufferSource | FormData | URLSearchParams | string;
type XRWebGLRenderingContext = WebGLRenderingContext | WebGL2RenderingContext;
type XSLTParameterValue = number | boolean | string | Node | Node[] | XPathResult;
type nsContentPolicyType = number;
type AlignSetting = "center" | "end" | "left" | "right" | "start";
type AlphaOption = "discard" | "keep";
type AnimationPlayState = "finished" | "idle" | "paused" | "running";
type AnimationReplaceState = "active" | "persisted" | "removed";
type AudioContextState = "closed" | "running" | "suspended";
type AutoKeyword = "auto";
type AutoplayPolicy = "allowed" | "allowed-muted" | "disallowed";
type AutoplayPolicyMediaType = "audiocontext" | "mediaelement";
type AvcBitstreamFormat = "annexb" | "avc";
type Base64URLDecodePadding = "ignore" | "reject" | "require";
type BinaryType = "arraybuffer" | "blob";
type BiquadFilterType = "allpass" | "bandpass" | "highpass" | "highshelf" | "lowpass" | "lowshelf" | "notch" | "peaking";
type CSSBoxType = "border" | "content" | "margin" | "padding";
type CSSStyleSheetParsingMode = "agent" | "author" | "user";
type CacheStorageNamespace = "chrome" | "content";
type CallbackDebuggerNotificationPhase = "post" | "pre";
type CanvasDirection = "inherit" | "ltr" | "rtl";
type CanvasFontKerning = "auto" | "none" | "normal";
type CanvasFontStretch = "condensed" | "expanded" | "extra-condensed" | "extra-expanded" | "normal" | "semi-condensed" | "semi-expanded" | "ultra-condensed" | "ultra-expanded";
type CanvasFontVariantCaps = "all-petite-caps" | "all-small-caps" | "normal" | "petite-caps" | "small-caps" | "titling-caps" | "unicase";
type CanvasLineCap = "butt" | "round" | "square";
type CanvasLineJoin = "bevel" | "miter" | "round";
type CanvasTextAlign = "center" | "end" | "left" | "right" | "start";
type CanvasTextBaseline = "alphabetic" | "bottom" | "hanging" | "ideographic" | "middle" | "top";
type CanvasTextRendering = "auto" | "geometricPrecision" | "optimizeLegibility" | "optimizeSpeed";
type CanvasWindingRule = "evenodd" | "nonzero";
type CaretChangedReason = "dragcaret" | "longpressonemptycontent" | "presscaret" | "releasecaret" | "scroll" | "taponcaret" | "updateposition" | "visibilitychange";
type ChannelCountMode = "clamped-max" | "explicit" | "max";
type ChannelInterpretation = "discrete" | "speakers";
type CheckerboardReason = "recent" | "severe";
type ClientType = "all" | "serviceworker" | "sharedworker" | "window" | "worker";
type CodecState = "closed" | "configured" | "unconfigured";
type ColorGamut = "p3" | "rec2020" | "srgb";
type ColorSpaceConversion = "default" | "none";
type CompositeOperation = "accumulate" | "add" | "replace";
type CompressionFormat = "deflate" | "deflate-raw" | "gzip";
type ConnectionType = "bluetooth" | "cellular" | "ethernet" | "none" | "other" | "unknown" | "wifi";
type ConsoleLevel = "error" | "log" | "warning";
type ConsoleLogLevel = "All" | "Clear" | "Debug" | "Dir" | "Dirxml" | "Error" | "Group" | "GroupEnd" | "Info" | "Log" | "Off" | "Profile" | "ProfileEnd" | "Time" | "TimeEnd" | "TimeLog" | "Trace" | "Warn";
type ContentScriptRunAt = "document_end" | "document_idle" | "document_start";
type CredentialMediationRequirement = "conditional" | "optional" | "required" | "silent";
type DOMRequestReadyState = "done" | "pending";
type DebuggerNotificationType = "cancelAnimationFrame" | "clearInterval" | "clearTimeout" | "domEvent" | "requestAnimationFrame" | "requestAnimationFrameCallback" | "setInterval" | "setIntervalCallback" | "setTimeout" | "setTimeoutCallback";
type DecoderDoctorReportType = "mediacannotinitializepulseaudio" | "mediacannotplaynodecoders" | "mediadecodeerror" | "mediadecodewarning" | "medianodecoders" | "mediaplatformdecodernotfound" | "mediaunsupportedlibavcodec" | "mediawidevinenowmf" | "mediawmfneeded";
type DirectionSetting = "" | "lr" | "rl";
type DisplayMode = "browser" | "fullscreen" | "minimal-ui" | "standalone";
type DistanceModelType = "exponential" | "inverse" | "linear";
type EncodedVideoChunkType = "delta" | "key";
type EndingType = "native" | "transparent";
type EventCallbackDebuggerNotificationType = "global" | "node" | "websocket" | "worker" | "xhr";
type FetchState = "aborted" | "complete" | "errored" | "requesting" | "responding";
type FileSystemHandleKind = "directory" | "file";
type FileType = "directory" | "other" | "regular";
type FillMode = "auto" | "backwards" | "both" | "forwards" | "none";
type FlexItemClampState = "clamped_to_max" | "clamped_to_min" | "unclamped";
type FlexLineGrowthState = "growing" | "shrinking";
type FlexPhysicalDirection = "horizontal-lr" | "horizontal-rl" | "vertical-bt" | "vertical-tb";
type FontFaceLoadStatus = "error" | "loaded" | "loading" | "unloaded";
type FontFaceSetLoadStatus = "loaded" | "loading";
type FrameType = "auxiliary" | "nested" | "none" | "top-level";
type GPUAddressMode = "clamp-to-edge" | "mirror-repeat" | "repeat";
type GPUAutoLayoutMode = "auto";
type GPUBlendFactor = "constant" | "dst" | "dst-alpha" | "one" | "one-minus-constant" | "one-minus-dst" | "one-minus-dst-alpha" | "one-minus-src" | "one-minus-src-alpha" | "src" | "src-alpha" | "src-alpha-saturated" | "zero";
type GPUBlendOperation = "add" | "max" | "min" | "reverse-subtract" | "subtract";
type GPUBufferBindingType = "read-only-storage" | "storage" | "uniform";
type GPUBufferMapState = "mapped" | "pending" | "unmapped";
type GPUCanvasAlphaMode = "opaque" | "premultiplied";
type GPUCompareFunction = "always" | "equal" | "greater" | "greater-equal" | "less" | "less-equal" | "never" | "not-equal";
type GPUCompilationMessageType = "error" | "info" | "warning";
type GPUCullMode = "back" | "front" | "none";
type GPUErrorFilter = "internal" | "out-of-memory" | "validation";
type GPUFeatureName = "bgra8unorm-storage" | "depth-clip-control" | "depth32float-stencil8" | "float32-filterable" | "indirect-first-instance" | "rg11b10ufloat-renderable" | "shader-f16" | "texture-compression-astc" | "texture-compression-bc" | "texture-compression-etc2" | "timestamp-query";
type GPUFilterMode = "linear" | "nearest";
type GPUFrontFace = "ccw" | "cw";
type GPUIndexFormat = "uint16" | "uint32";
type GPULoadOp = "clear" | "load";
type GPUMipmapFilterMode = "linear" | "nearest";
type GPUPowerPreference = "high-performance" | "low-power";
type GPUPrimitiveTopology = "line-list" | "line-strip" | "point-list" | "triangle-list" | "triangle-strip";
type GPUSamplerBindingType = "comparison" | "filtering" | "non-filtering";
type GPUStencilOperation = "decrement-clamp" | "decrement-wrap" | "increment-clamp" | "increment-wrap" | "invert" | "keep" | "replace" | "zero";
type GPUStorageTextureAccess = "write-only";
type GPUStoreOp = "discard" | "store";
type GPUTextureAspect = "all" | "depth-only" | "stencil-only";
type GPUTextureDimension = "1d" | "2d" | "3d";
type GPUTextureFormat = "bc1-rgba-unorm" | "bc1-rgba-unorm-srgb" | "bc2-rgba-unorm" | "bc2-rgba-unorm-srgb" | "bc3-rgba-unorm" | "bc3-rgba-unorm-srgb" | "bc4-r-snorm" | "bc4-r-unorm" | "bc5-rg-snorm" | "bc5-rg-unorm" | "bc6h-rgb-float" | "bc6h-rgb-ufloat" | "bc7-rgba-unorm" | "bc7-rgba-unorm-srgb" | "bgra8unorm" | "bgra8unorm-srgb" | "depth16unorm" | "depth24plus" | "depth24plus-stencil8" | "depth32float" | "depth32float-stencil8" | "r16float" | "r16sint" | "r16uint" | "r32float" | "r32sint" | "r32uint" | "r8sint" | "r8snorm" | "r8uint" | "r8unorm" | "rg11b10ufloat" | "rg16float" | "rg16sint" | "rg16uint" | "rg32float" | "rg32sint" | "rg32uint" | "rg8sint" | "rg8snorm" | "rg8uint" | "rg8unorm" | "rgb10a2unorm" | "rgb9e5ufloat" | "rgba16float" | "rgba16sint" | "rgba16uint" | "rgba32float" | "rgba32sint" | "rgba32uint" | "rgba8sint" | "rgba8snorm" | "rgba8uint" | "rgba8unorm" | "rgba8unorm-srgb" | "stencil8";
type GPUTextureSampleType = "depth" | "float" | "sint" | "uint" | "unfilterable-float";
type GPUTextureViewDimension = "1d" | "2d" | "2d-array" | "3d" | "cube" | "cube-array";
type GPUVertexFormat = "float16x2" | "float16x4" | "float32" | "float32x2" | "float32x3" | "float32x4" | "sint16x2" | "sint16x4" | "sint32" | "sint32x2" | "sint32x3" | "sint32x4" | "sint8x2" | "sint8x4" | "snorm16x2" | "snorm16x4" | "snorm8x2" | "snorm8x4" | "uint16x2" | "uint16x4" | "uint32" | "uint32x2" | "uint32x3" | "uint32x4" | "uint8x2" | "uint8x4" | "unorm16x2" | "unorm16x4" | "unorm8x2" | "unorm8x4";
type GPUVertexStepMode = "instance" | "vertex";
type GamepadHand = "" | "left" | "right";
type GamepadHapticActuatorType = "vibration";
type GamepadLightIndicatorType = "on-off" | "rgb";
type GamepadMappingType = "" | "standard" | "xr-standard";
type GetUserMediaRequestType = "getusermedia" | "recording-device-stopped" | "selectaudiooutput";
type GridDeclaration = "explicit" | "implicit";
type GridTrackState = "removed" | "repeat" | "static";
type HardwareAcceleration = "no-preference" | "prefer-hardware" | "prefer-software";
type HashAlgorithm = "sha1" | "sha256" | "sha384" | "sha512";
type HdrMetadataType = "smpteSt2086" | "smpteSt2094-10" | "smpteSt2094-40";
type HeadersGuardEnum = "immutable" | "none" | "request" | "request-no-cors" | "response";
type HighlightType = "grammar-error" | "highlight" | "spelling-error";
type IDBCursorDirection = "next" | "nextunique" | "prev" | "prevunique";
type IDBRequestReadyState = "done" | "pending";
type IDBTransactionMode = "cleanup" | "readonly" | "readwrite" | "readwriteflush" | "versionchange";
type ImageOrientation = "flipY" | "from-image" | "none";
type InspectorPropertyType = "color" | "gradient" | "timing-function";
type IterationCompositeOperation = "accumulate" | "replace";
type JSRFPTarget = "RoundWindowSize" | "SiteSpecificZoom";
type L10nFileSourceHasFileStatus = "missing" | "present" | "unknown";
type LatencyMode = "quality" | "realtime";
type LineAlignSetting = "center" | "end" | "start";
type LockMode = "exclusive" | "shared";
type MIDIPortConnectionState = "closed" | "open" | "pending";
type MIDIPortDeviceState = "connected" | "disconnected";
type MIDIPortType = "input" | "output";
type MediaControlKey = "focus" | "nexttrack" | "pause" | "play" | "playpause" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
type MediaDecodingType = "file" | "media-source";
type MediaDeviceKind = "audioinput" | "audiooutput" | "videoinput";
type MediaEncodingType = "record" | "transmission";
type MediaKeyMessageType = "individualization-request" | "license-release" | "license-renewal" | "license-request";
type MediaKeySessionType = "persistent-license" | "temporary";
type MediaKeyStatus = "expired" | "internal-error" | "output-downscaled" | "output-restricted" | "released" | "status-pending" | "usable";
type MediaKeysRequirement = "not-allowed" | "optional" | "required";
type MediaSessionAction = "nexttrack" | "pause" | "play" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
type MediaSessionPlaybackState = "none" | "paused" | "playing";
type MediaSourceEndOfStreamError = "decode" | "network";
type MediaSourceReadyState = "closed" | "ended" | "open";
type MediaStreamTrackState = "ended" | "live";
type MozContentPolicyType = "beacon" | "csp_report" | "fetch" | "font" | "image" | "imageset" | "main_frame" | "media" | "object" | "object_subrequest" | "other" | "ping" | "script" | "speculative" | "stylesheet" | "sub_frame" | "web_manifest" | "websocket" | "xml_dtd" | "xmlhttprequest" | "xslt";
type MozUrlClassificationFlags = "any_basic_tracking" | "any_social_tracking" | "any_strict_tracking" | "cryptomining" | "cryptomining_content" | "emailtracking" | "emailtracking_content" | "fingerprinting" | "fingerprinting_content" | "socialtracking" | "socialtracking_facebook" | "socialtracking_linkedin" | "socialtracking_twitter" | "tracking" | "tracking_ad" | "tracking_analytics" | "tracking_content" | "tracking_social";
type NavigationType = "back_forward" | "navigate" | "prerender" | "reload";
type NotificationDirection = "auto" | "ltr" | "rtl";
type NotificationPermission = "default" | "denied" | "granted";
type OffscreenRenderingContextId = "2d" | "bitmaprenderer" | "webgl" | "webgl2" | "webgpu";
type OrientationLockType = "any" | "landscape" | "landscape-primary" | "landscape-secondary" | "natural" | "portrait" | "portrait-primary" | "portrait-secondary";
type OrientationType = "landscape-primary" | "landscape-secondary" | "portrait-primary" | "portrait-secondary";
type OscillatorType = "custom" | "sawtooth" | "sine" | "square" | "triangle";
type OverSampleType = "2x" | "4x" | "none";
type OverridableErrorCategory = "domain-mismatch" | "expired-or-not-yet-valid" | "trust-error" | "unset";
type PCError = "InvalidAccessError" | "InvalidCharacterError" | "InvalidModificationError" | "InvalidStateError" | "NotReadableError" | "NotSupportedError" | "OperationError" | "RangeError" | "SyntaxError" | "TypeError" | "UnknownError";
type PCObserverStateType = "ConnectionState" | "IceConnectionState" | "IceGatheringState" | "None" | "SignalingState";
type PanningModelType = "HRTF" | "equalpower";
type PaymentComplete = "fail" | "success" | "unknown";
type PaymentShippingType = "delivery" | "pickup" | "shipping";
type PermissionName = "geolocation" | "midi" | "notifications" | "persistent-storage" | "push" | "screen-wake-lock" | "storage-access";
type PermissionState = "denied" | "granted" | "prompt";
type PermitUnloadAction = "dontUnload" | "prompt" | "unload";
type PlacesEventType = "bookmark-added" | "bookmark-guid-changed" | "bookmark-keyword-changed" | "bookmark-moved" | "bookmark-removed" | "bookmark-tags-changed" | "bookmark-time-changed" | "bookmark-title-changed" | "bookmark-url-changed" | "favicon-changed" | "history-cleared" | "none" | "page-removed" | "page-title-changed" | "page-visited" | "pages-rank-changed" | "purge-caches";
type PlaybackDirection = "alternate" | "alternate-reverse" | "normal" | "reverse";
type PopupBlockerState = "openAbused" | "openAllowed" | "openBlocked" | "openControlled" | "openOverridden";
type PositionAlignSetting = "auto" | "center" | "line-left" | "line-right";
type PredefinedColorSpace = "display-p3" | "srgb";
type PrefersColorSchemeOverride = "dark" | "light" | "none";
type PremultiplyAlpha = "default" | "none" | "premultiply";
type PresentationStyle = "attachment" | "inline" | "unspecified";
type PromiseDebuggingState = "fulfilled" | "pending" | "rejected";
type PushEncryptionKeyName = "auth" | "p256dh";
type RTCBundlePolicy = "balanced" | "max-bundle" | "max-compat";
type RTCCodecType = "decode" | "encode";
type RTCDataChannelState = "closed" | "closing" | "connecting" | "open";
type RTCDataChannelType = "arraybuffer" | "blob";
type RTCDtlsTransportState = "closed" | "connected" | "connecting" | "failed" | "new";
type RTCEncodedVideoFrameType = "delta" | "empty" | "key";
type RTCIceCandidateType = "host" | "prflx" | "relay" | "srflx";
type RTCIceConnectionState = "checking" | "closed" | "completed" | "connected" | "disconnected" | "failed" | "new";
type RTCIceCredentialType = "password";
type RTCIceGatheringState = "complete" | "gathering" | "new";
type RTCIceTransportPolicy = "all" | "relay";
type RTCLifecycleEvent = "connectionstatechange" | "iceconnectionstatechange" | "icegatheringstatechange" | "initialized";
type RTCPeerConnectionState = "closed" | "connected" | "connecting" | "disconnected" | "failed" | "new";
type RTCPriorityType = "high" | "low" | "medium" | "very-low";
type RTCRtpTransceiverDirection = "inactive" | "recvonly" | "sendonly" | "sendrecv" | "stopped";
type RTCSctpTransportState = "closed" | "connected" | "connecting";
type RTCSdpType = "answer" | "offer" | "pranswer" | "rollback";
type RTCSignalingState = "closed" | "have-local-offer" | "have-local-pranswer" | "have-remote-offer" | "have-remote-pranswer" | "stable";
type RTCStatsIceCandidatePairState = "cancelled" | "failed" | "frozen" | "inprogress" | "succeeded" | "waiting";
type RTCStatsType = "candidate-pair" | "codec" | "csrc" | "data-channel" | "inbound-rtp" | "local-candidate" | "media-source" | "outbound-rtp" | "peer-connection" | "remote-candidate" | "remote-inbound-rtp" | "remote-outbound-rtp" | "session" | "track" | "transport";
type ReadableStreamReaderMode = "byob";
type RecordingState = "inactive" | "paused" | "recording";
type ReferrerPolicy = "" | "no-referrer" | "no-referrer-when-downgrade" | "origin" | "origin-when-cross-origin" | "same-origin" | "strict-origin" | "strict-origin-when-cross-origin" | "unsafe-url";
type RequestCache = "default" | "force-cache" | "no-cache" | "no-store" | "only-if-cached" | "reload";
type RequestCredentials = "include" | "omit" | "same-origin";
type RequestDestination = "" | "audio" | "audioworklet" | "document" | "embed" | "font" | "frame" | "iframe" | "image" | "manifest" | "object" | "paintworklet" | "report" | "script" | "sharedworker" | "style" | "track" | "video" | "worker" | "xslt";
type RequestMode = "cors" | "navigate" | "no-cors" | "same-origin";
type RequestRedirect = "error" | "follow" | "manual";
type ResizeObserverBoxOptions = "border-box" | "content-box" | "device-pixel-content-box";
type ResponseType = "basic" | "cors" | "default" | "error" | "opaque" | "opaqueredirect";
type ScreenColorGamut = "p3" | "rec2020" | "srgb";
type ScrollBehavior = "auto" | "instant" | "smooth";
type ScrollLogicalPosition = "center" | "end" | "nearest" | "start";
type ScrollRestoration = "auto" | "manual";
type ScrollSetting = "" | "up";
type ScrollState = "started" | "stopped";
type SecurityPolicyViolationEventDisposition = "enforce" | "report";
type SelectionMode = "end" | "preserve" | "select" | "start";
type SelectorWarningKind = "UnconstrainedHas";
type ServiceWorkerState = "activated" | "activating" | "installed" | "installing" | "parsed" | "redundant";
type ServiceWorkerUpdateViaCache = "all" | "imports" | "none";
type ShadowRootMode = "closed" | "open";
type SlotAssignmentMode = "manual" | "named";
type SocketReadyState = "closed" | "closing" | "halfclosed" | "open" | "opening";
type SourceBufferAppendMode = "segments" | "sequence";
type SpeechRecognitionErrorCode = "aborted" | "audio-capture" | "bad-grammar" | "language-not-supported" | "network" | "no-speech" | "not-allowed" | "service-not-allowed";
type SpeechSynthesisErrorCode = "audio-busy" | "audio-hardware" | "canceled" | "interrupted" | "invalid-argument" | "language-unavailable" | "network" | "synthesis-failed" | "synthesis-unavailable" | "text-too-long" | "voice-unavailable";
type StreamFilterStatus = "closed" | "disconnected" | "failed" | "finishedtransferringdata" | "suspended" | "transferringdata" | "uninitialized";
type StringType = "inline" | "literal" | "other" | "stringbuffer";
type SupportedType = "application/xhtml+xml" | "application/xml" | "image/svg+xml" | "text/html" | "text/xml";
type TCPReadyState = "closed" | "closing" | "connecting" | "open";
type TCPSocketBinaryType = "arraybuffer" | "string";
type TaskPriority = "background" | "user-blocking" | "user-visible";
type TextTrackKind = "captions" | "chapters" | "descriptions" | "metadata" | "subtitles";
type TextTrackMode = "disabled" | "hidden" | "showing";
type TouchEventsOverride = "disabled" | "enabled" | "none";
type TransferFunction = "hlg" | "pq" | "srgb";
type UniFFIScaffoldingCallCode = "error" | "internal-error" | "success";
type VRDisplayEventReason = "mounted" | "navigation" | "requested" | "unmounted";
type VREye = "left" | "right";
type VideoColorPrimaries = "bt2020" | "bt470bg" | "bt709" | "smpte170m" | "smpte432";
type VideoEncoderBitrateMode = "constant" | "quantizer" | "variable";
type VideoMatrixCoefficients = "bt2020-ncl" | "bt470bg" | "bt709" | "rgb" | "smpte170m";
type VideoPixelFormat = "BGRA" | "BGRX" | "I420" | "I420A" | "I422" | "I444" | "NV12" | "RGBA" | "RGBX";
type VideoTransferCharacteristics = "bt709" | "hlg" | "iec61966-2-1" | "linear" | "pq" | "smpte170m";
type VisibilityState = "hidden" | "visible";
type WakeLockType = "screen";
type WebGLPowerPreference = "default" | "high-performance" | "low-power";
type WebIDLProcType = "browser" | "extension" | "file" | "forkServer" | "gmpPlugin" | "gpu" | "ipdlUnitTest" | "preallocated" | "privilegedabout" | "privilegedmozilla" | "rdd" | "remoteSandboxBroker" | "socket" | "unknown" | "utility" | "vr" | "web" | "webIsolated" | "webServiceWorker" | "withCoopCoep";
type WebIDLUtilityActorName = "audioDecoder_AppleMedia" | "audioDecoder_Generic" | "audioDecoder_WMF" | "jSOracle" | "mfMediaEngineCDM" | "unknown" | "windowsFileDialog" | "windowsUtils";
type WebTransportCongestionControl = "default" | "low-latency" | "throughput";
type WebTransportErrorSource = "session" | "stream";
type WebTransportReliabilityMode = "pending" | "reliable-only" | "supports-unreliable";
type WireframeRectType = "background" | "image" | "text" | "unknown";
type WorkerType = "classic" | "module";
type WriteCommandType = "seek" | "truncate" | "write";
type WriteMode = "append" | "appendOrCreate" | "create" | "overwrite";
type XMLHttpRequestResponseType = "" | "arraybuffer" | "blob" | "document" | "json" | "text";
type XREye = "left" | "none" | "right";
type XRHandedness = "left" | "none" | "right";
type XRReferenceSpaceType = "bounded-floor" | "local" | "local-floor" | "unbounded" | "viewer";
type XRSessionMode = "immersive-ar" | "immersive-vr" | "inline";
type XRTargetRayMode = "gaze" | "screen" | "tracked-pointer";
type XRVisibilityState = "hidden" | "visible" | "visible-blurred";
type mozPacketDumpType = "rtcp" | "rtp" | "srtcp" | "srtp";

/**
 * Note: Without this, TS autoconfig in VSCode picks up types from node_modules.
 * https://github.com/DefinitelyTyped/DefinitelyTyped/blob/2e4a01d2be/types/node/globals.d.ts#L3-L6
 */
declare var onmessage: EventHandler;

declare var crypto: GlobalCrypto["crypto"];
// @ts-ignore
declare var atob: WindowOrWorkerGlobalScope["atob"];
// @ts-ignore
declare var btoa: WindowOrWorkerGlobalScope["btoa"];
// @ts-ignore
declare var fetch: WindowOrWorkerGlobalScope["fetch"];

type ContentSecurityPolicy = nsIContentSecurityPolicy;
type Cookie = nsICookie;
type InputStream = nsIInputStream;
type LoadContext = nsILoadContext;
type LoadInfo = nsILoadInfo;
type MozChannel = nsIChannel;
type MozTreeView = nsITreeView;
type OutputStream = nsIOutputStream;
type Principal = nsIPrincipal;
type RemoteTab = nsIRemoteTab;
type StackFrame = nsIStackFrame;
type URI = nsIURI;
type XULControllers = nsIControllers;

type EventHandler = Function;
type EventListenerOrEventListenerObject = EventListener;
type HTMLCollectionOf<T> = HTMLCollection;
type JSString = string;

// Unresolved types!
type BufferSource = any;
type DOMApplication = any;
type UTF8String = string;
type WindowProxy = Window;