Handling delayed notifications in Laravel, pt. 3

EventServiceProvider.php

<?php

namespace App\Base\Providers;

use App\Notifications\Listeners\NotificationSendingListener;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
use Illuminate\Notifications\Events\NotificationSending;

class EventServiceProvider extends ServiceProvider
{
    protected $listen = [
        NotificationSending::class => [
            NotificationSendingListener::class,
        ],
    ];

    public function boot()
    {
        parent::boot();
    }
}

NotificationSendingListener.php

<?php

namespace App\Notifications\Listeners;

use Illuminate\Notifications\Events\NotificationSending;

class NotificationSendingListener
{
    public function handle(NotificationSending $event)
    {
        if (method_exists($event->notification, 'dontSend')) {
            return !$event->notification->dontSend($event->notifiable);
        }

        return true;
    }
}