code: public function renderRest(
          $request,
          $data,
          $statusCode = Response::HTTP_OK,
          $headers = []
      ) {
          $requestSerializer = $this->get('ongr_api.request_serializer');
  
          return new Response(
              $requestSerializer->serializeRequest($request, $data),
              $statusCode,
              array_merge(
                  ['Content-Type' => 'application/' . $requestSerializer->checkAcceptHeader($request)],
                  $headers
              )
          );
      }
docs: Renders rest response.
  
  @param Request $request
  @param string  $data
  @param int     $statusCode
  @param array   $headers
  
  @return Response|array