misc_pterodactyl-panel/app/Providers/EventServiceProvider.php

<?php

namespace Pterodactyl\Providers;

use Pterodactyl\Models\User;
use Pterodactyl\Models\Server;
use Pterodactyl\Models\Subuser;
use Pterodactyl\Models\EggVariable;
use Pterodactyl\Observers\UserObserver;
use Pterodactyl\Observers\ServerObserver;
use Pterodactyl\Observers\SubuserObserver;
use Pterodactyl\Observers\EggVariableObserver;
use Pterodactyl\Events\Server\Installed as ServerInstalledEvent;
use Pterodactyl\Notifications\ServerInstalled as ServerInstalledNotification;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;

class EventServiceProvider extends ServiceProvider
{
    /**
     * The event listener mappings for the application.
     *
     * @var array
     */
    protected $listen = [
        ServerInstalledEvent::class => [
            ServerInstalledNotification::class,
        ],
    ];

    /**
     * Boots the service provider and registers model event listeners.
     */
    public function boot()
    {
        parent::boot();

        User::observe(UserObserver::class);
        Server::observe(ServerObserver::class);
        Subuser::observe(SubuserObserver::class);
        EggVariable::observe(EggVariableObserver::class);
    }
}