FOS\RestBundle\View\ViewHandler FOS\RestBundle\View\JsonpHandler %fos_rest.formats% %fos_rest.failed_validation% %fos_rest.empty_content% %fos_rest.serialize_null% %fos_rest.force_redirects% %fos_rest.default_engine% %fos_rest.serializer.exclusion_strategy.groups% %fos_rest.serializer.exclusion_strategy.version% %fos_rest.serializer.serialize_null% %fos_rest.view_handler.jsonp.callback_param%