ifnex/04_Laravel/app/Models/ShippingRate.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ShippingRate extends Model
{
    protected $fillable = [
        'direction',
        'type',
        'weight',
        'zone_1', 'zone_2', 'zone_3', 'zone_4', 'zone_5',
        'zone_6', 'zone_7', 'zone_8', 'zone_9', 'zone_10',
    ];

    protected function casts(): array
    {
        return [
            'direction' => \App\Enums\ShipmentDirection::class,
            'type' => \App\Enums\ShipmentType::class,
        ];
    }
}