SATE-EasyReceipt/app/Http/Controllers/Web/Contract/CreateParam.php

<?php

namespace App\Http\Controllers\Web\Contract;

use App\Http\Controllers\Web\BaseParam;
use App\Models\Contract;

/**
 * @property string $name
 * @property ?string $custom
 */

class CreateParam extends BaseParam
{
    public function rules(): array
    {
        return
            [
                Contract::COL_NAME_NAME => $this->str(),
                Contract::COL_NAME_CUSTOM => $this->str(true),
            ];
    }
}