public function response(string $content = '', int $statusCode = StatusCode::OK, array $headers = []): Response
    {
        /** @var Response $response */
        $response = $this->container()->getSingleton(Response::class);

        if (\func_num_args() === 0) {
            return $response;
        }

        return $response->create($content, $statusCode, $headers);
    }