{
  "type": "object",
  "properties": {
    "access_token": {
      "type":  "string"
    },
    "refresh_token": {
      "type":  "string"
    },
    "token_type": {
      "type":  "string"
    },
    "expires_in": {
      "type":  "integer",
      "format": "int64"
    }
  },
  "additionalProperties": false,
  "required": [
    "access_token", "token_type", "expires_in"
  ]
}