*/ interface ResponseFactory { /** * Creates a new PSR-7 response. * * @param int $statusCode * @param string|null $reasonPhrase * @param array $headers * @param resource|string|StreamInterface|null $body * @param string $protocolVersion * * @return ResponseInterface */ public function createResponse( $statusCode = 200, $reasonPhrase = null, array $headers = [], $body = null, $protocolVersion = '1.1' ); }