public function getPayment()
    {
        if (is_null($this->payment)) {
            $payPalPayment = oxNew(\OxidEsales\Eshop\Application\Model\Payment::class);
            $payPalPayment->load('oxidpaypal');
            $this->setPayment($payPalPayment);
        }

        return $this->payment;
    }