private function getPaymentHandler() { $payment = new GoogleCheckout($this->details); $payment->setApplication(CustomerOrder::getApplication()); $payment->setConfigValue('sandbox', '1'); $payment->setConfigValue('merchant_id', '952173450848810'); $payment->setConfigValue('merchant_key', '7fUUEkKof9OD-6u6cUNX8g'); $payment->setOrder($this->createOrder()); return $payment; }