Prooph\ServiceBus\Plugin\Guard\AuthorizationService::isGranted PHP Method

    public function isGranted($messageName, $context = null);

 /**
  * @param ActionEvent $actionEvent
  */
 public function onRoute(ActionEvent $actionEvent)
 {
     if ($this->authorizationService->isGranted($actionEvent->getParam(MessageBus::EVENT_PARAM_MESSAGE_NAME), $actionEvent->getParam(MessageBus::EVENT_PARAM_MESSAGE))) {
         return;
     }
     $actionEvent->stopPropagation(true);
     throw new UnauthorizedException();
 }