erp/app/Models/Waybill.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Waybill extends Model
{
    protected $guarded = [];

    public static $BUSINESS_EXPRESS_CODE = 247;
    public static $AIR_FREIGHT_CODE = 266;

    public static $STATUS_CREATE_WAYBILL_CODE = 1;
    public static $STATUS_CREATE_WAYBILL_ENCRYPTED_DATA = 2;
    public static $STATUS_PRINT_SUCCESS = 3;
}