Omnipay\Alipay\Requests\LegacyRefundRequest::setDefaults PHP Метод

    protected function setDefaults()
    {
        if (!$this->getRefundDate()) {
            $this->setRefundDate(date('Y-m-d H:i:s'));
        }
        if (!$this->getBatchNo()) {
            $this->setBatchNo(date('Ymd') . mt_rand(1000, 9999));
        }
    }