Customer model

<?php
namespace App\Models;

use App\Observers\CustomerObserver;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Customer extends Model
{
    use HasFactory, SoftDeletes;

    protected static function boot()
    {
        parent::boot();
        static ::observe(CustomerObserver::class);
    }
}