public function runStream(Stream $stream, &$response, array $params = array()) { $serviceName = explode(':', $stream->getService())[0]; $method = explode(':', $stream->getService())[1]; $instance = $this->get($serviceName); $callable = array($instance, $method); $parameters = array(&$response, $params); call_user_func_array($callable, $parameters); }