ldc-mesbr-app/app/Models/Customer.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Customer extends Model
{
    use HasFactory;

    /**
     * Fillable
     *
     * @var string[]
     */
    protected $fillable = [
        'hashcode',
        'email'
    ];
}