SATE-EasyReceipt/app/Http/Controllers/Web/Custom/HelloTechno/CustomersParam.php

<?php

namespace App\Http\Controllers\Web\Custom\HelloTechno;

use App\Http\Controllers\Web\BaseParam;

/**
 * @property ?string $customerCode
 */

class CustomersParam extends BaseParam
{
    public function rules(): array
    {
        return [
            'customer_code' => $this->str(true),
        ];
    }
}