{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$ref": "#/definitions/NimbusEnrollment",
  "definitions": {
    "NimbusEnrollment": {
      "type": "object",
      "properties": {
        "slug": {
          "type": "string",
          "description": "Unique identifier for the experiment"
        },
        "userFacingName": {
          "type": "string",
          "description": "Public name of the experiment displayed on \"about:studies\""
        },
        "userFacingDescription": {
          "type": "string",
          "description": "Short public description of the experiment displayed on on \"about:studies\""
        },
        "isRollout": {
          "type": "boolean",
          "description": "When this property is set to true, treat this experiment as a rollout. Rollouts are currently handled as single-branch experiments separated from the bucketing namespace for normal experiments. See also: https://mozilla-hub.atlassian.net/browse/SDK-405"
        },
        "featureIds": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "A list of featureIds the experiment contains configurations for."
        },
        "branch": {
          "anyOf": [
            {
              "type": "object",
              "properties": {
                "slug": {
                  "type": "string",
                  "description": "Identifier for the branch"
                },
                "feature": {
                  "type": "object",
                  "properties": {
                    "featureId": {
                      "type": "string",
                      "description": "The identifier for the feature flag"
                    },
                    "value": {
                      "type": "object",
                      "additionalProperties": {},
                      "description": "Optional extra params for the feature (this should be validated against a schema)"
                    }
                  },
                  "required": ["featureId", "value"],
                  "description": "A single feature configuration"
                }
              },
              "required": ["slug", "feature"]
            },
            {
              "type": "object",
              "properties": {
                "slug": {
                  "type": "string",
                  "description": "Identifier for the branch"
                },
                "feature": {
                  "type": "object",
                  "properties": {
                    "featureId": {
                      "type": "string",
                      "const": "unused-feature-id-for-legacy-support"
                    },
                    "enabled": {
                      "type": "boolean",
                      "const": false
                    },
                    "value": {
                      "type": "object",
                      "additionalProperties": {}
                    }
                  },
                  "required": ["featureId", "enabled", "value"],
                  "description": "The feature key must be provided with valid values to prevent crashes if the DTO is encountered by Desktop clients earlier than version 95."
                },
                "features": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "featureId": {
                        "type": "string",
                        "description": "The identifier for the feature flag"
                      },
                      "value": {
                        "type": "object",
                        "additionalProperties": {},
                        "description": "Optional extra params for the feature (this should be validated against a schema)"
                      }
                    },
                    "required": ["featureId", "value"]
                  },
                  "description": "An array of feature configurations"
                }
              },
              "required": ["slug", "feature", "features"]
            },
            {
              "type": "object",
              "properties": {
                "slug": {
                  "type": "string",
                  "description": "Identifier for the branch"
                },
                "features": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "featureId": {
                        "type": "string",
                        "description": "The identifier for the feature flag"
                      },
                      "value": {
                        "type": "object",
                        "additionalProperties": {},
                        "description": "Optional extra params for the feature (this should be validated against a schema)"
                      }
                    },
                    "required": ["featureId", "value"]
                  },
                  "description": "An array of feature configurations"
                }
              },
              "required": ["slug", "features"]
            }
          ],
          "description": "Branch configuration for the experiment"
        },
        "experimentType": {
          "type": "string",
          "description": "What kind of experiment this enrollment corresponds to."
        },
        "enrollmentId": {
          "type": "string",
          "description": "A unique identifier for the enrollment."
        },
        "active": {
          "type": "boolean",
          "description": "Whether or not the enrollment is active."
        },
        "lastSeen": {
          "type": "string",
          "format": "date-time",
          "description": "The last time the experiment was seen."
        },
        "force": {
          "type": "boolean",
          "description": "Whether or not this was a force enrollment."
        },
        "prefs": {
          "type": "array",
          "description": "Information about prefs set by this enrollment.",
          "items": {
            "type": "object",
            "properties": {
              "name": {
                "type": "string",
                "description": "The name of the pref that was set."
              },
              "featureId": {
                "type": "string",
                "description": "The ID of the feature that owns the variable that set this pref."
              },
              "variable": {
                "type": "string",
                "description": "The variable that set this pref."
              },
              "branch": {
                "type": "string",
                "enum": ["user", "default"],
                "description": "The branch the pref was set on."
              },
              "originalValue": {
                "description": "The original value before the experiment."
              }
            },
            "additionalProperties": false
          }
        },
        "localizations": {
          "anyOf": [
            {
              "type": "object",
              "additionalProperties": {
                "type": "object",
                "additionalProperties": {
                  "type": "string"
                }
              }
            },
            {
              "type": "null"
            }
          ],
          "description": "Per-locale localization substitutions.\n\nThe top level key is the locale (e.g., \"en-US\" or \"fr\"). Each entry is a mapping of string IDs to their localized equivalents.\n\nOnly supported on desktop."
        },
        "unenrollReason": {
          "type": "string",
          "description": "The reason for unenrollment. Only present when the enrollment is inactive."
        }
      },
      "required": [
        "slug",
        "userFacingName",
        "userFacingDescription",
        "branch",
        "enrollmentId",
        "active",
        "lastSeen"
      ],
      "description": "An enrollment in a Nimbus Experiment saved to disk"
    }
  }
}