class ResourceResponse

class ResourceResponse extends Response implements CacheableResponseInterface {
    use CacheableResponseTrait;
    
    /**
     * Response data that should be serialized.
     *
     * @var mixed
     */
    protected $responseData;
    
    /**
     * Constructor for ResourceResponse objects.
     *
     * @param mixed $data
     *   Response data that should be serialized.
     * @param int $status
     *   The response status code.
     * @param array $headers
     *   An array of response headers.
     */
    public function __construct($data = NULL, $status = 200, array $headers = []) {
        $this->responseData = $data;
        parent::__construct('', $status, $headers);
    }
    
    /**
     * Returns response data that should be serialized.
     *
     * @return mixed
     *   Response data that should be serialized.
     */
    public function getResponseData() {
        return $this->responseData;
    }

}