protected function notifyDanger($content) {
        $notification = NotificationFactory::newDangerNotification($content);
        return $this->notify(NotificationEvents::NOTIFICATION_DANGER, $notification);
    }
protected function notifyDanger($content) {
        $notification = NotificationFactory::newDangerNotification($content);
        return $this->notify(NotificationEvents::NOTIFICATION_DANGER, $notification);
    }
protected function notifyDanger ( $ content ) { $ notification = NotificationFactory :: newDangerNotification ( $ content ) ; return $ this -> notify ( NotificationEvents :: NOTIFICATION_DANGER , $ notification ) ; }
Notify "danger".

@param string $content The content.
@return Event Returns the event.
Notify danger .