[
  {
    "namespace": "manifest",
    "types": [
      {
        "$extend": "PermissionNoPrompt",
        "choices": [
          {
            "type": "string",
            "enum": ["dns"]
          }
        ]
      }
    ]
  },
  {
    "namespace": "dns",
    "description": "Asynchronous DNS API",
    "permissions": ["dns"],
    "types": [
      {
        "id": "DNSRecord",
        "type": "object",
        "description": "An object encapsulating a DNS Record.",
        "properties": {
          "canonicalName": {
            "type": "string",
            "optional": true,
            "description": "The canonical hostname for this record.  this value is empty if the record was not fetched with the 'canonical_name' flag."
          },
          "isTRR": {
            "type": "string",
            "description": "Record retreived with TRR."
          },
          "addresses": {
            "type": "array",
            "items": { "type": "string" }
          }
        }
      },
      {
        "id": "ResolveFlags",
        "type": "array",
        "items": {
          "type": "string",
          "enum": [
            "allow_name_collisions",
            "bypass_cache",
            "canonical_name",
            "disable_ipv4",
            "disable_ipv6",
            "disable_trr",
            "offline",
            "priority_low",
            "priority_medium",
            "speculate"
          ]
        }
      }
    ],
    "functions": [
      {
        "name": "resolve",
        "type": "function",
        "description": "Resolves a hostname to a DNS record.",
        "async": true,
        "parameters": [
          {
            "name": "hostname",
            "type": "string"
          },
          {
            "name": "flags",
            "optional": true,
            "default": [],
            "$ref": "ResolveFlags"
          }
        ]
      }
    ]
  }
]