{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/MessageCallResponse",
  "title": "MessageCallResponse",
  "type": "object",
  "properties": {
    "ended_timestamp": {
      "type": [
        "string",
        "null"
      ],
      "format": "date-time"
    },
    "participants": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/SnowflakeType"
      },
      "uniqueItems": true
    }
  },
  "required": [
    "participants"
  ]
}