public function patch(array $args) {
        $formExtras = !empty($_POST['formExtras']) ? $_POST['formExtras'] : [];
        /**
         * Fires **before** calling Amazon Pay's `Update Checkout Session` API
         *
         * @param array  $formExtras
         * @param array  $args See {@see \Aivec\Welcart\SettlementModules\AmazonPay\API\CheckoutSession\Update::patch()}
         * @param string $settlementType `payonly` or `payandship`
         * @param string $paymentIntent `Authorize`, `AuthorizeWithCapture` or `Confirm`
         */
        do_action(
            'wcexaap_on_before_update_checkout_session',
            $formExtras,
            $args,
            $this->settlementType,
            $this->paymentIntent
        );
        if (!empty($this->settlementType)) {
            /**
             * Fires **before** calling Amazon Pay's `Update Checkout Session` API
             *
             * @param array  $formExtras
             * @param array  $args See {@see \Aivec\Welcart\SettlementModules\AmazonPay\API\CheckoutSession\Update::patch()}
             * @param string $settlementType `payonly` or `payandship`
             * @param string $paymentIntent `Authorize`, `AuthorizeWithCapture` or `Confirm`
             */
            do_action(
                "wcexaap_on_before_update_checkout_session_{$this->settlementType}",
                $formExtras,
                $args,
                $this->settlementType,
                $this->paymentIntent
            );
        }

        $id = $args['id'];
        $order = (new API\WelcartEntries())->getOrder();
        $payload = [
            'webCheckoutDetails' => [
                'checkoutResultReturnUrl' => $this->checkoutResultUrl,
            ],
            'paymentDetails' => [
                'paymentIntent' => $this->paymentIntent,
                'canHandlePendingAuthorization' => $this->canHandlePendingAuthorization,
                'chargeAmount' => [
                    'amount' => $order['total_full_price'],
                    'currencyCode' => usces_crcode('return'),
                ],
            ],
            'platformId' => Constants::PLATFORM_ID,
        ];

        $headers = (new SandboxSimulation($this->module))->updateCheckoutSessionSetSimCodeIfSandbox();
        try {
            $client = $this->module->getAmazonClient();
            $result = $client->updateCheckoutSession($id, $payload, $headers);
            if ($this->module->errors->hasError($result)) {
                return $this->module->errors->getAmzErrorResponse($result, $this);
            }
            if ($this->hasConstraints($result)) {
                return $this->getConstraintsResponse($result);
            }
        } catch (\Exception $e) {
            return $this->module->errors->getErrorResponse(
                GenericErrorStore::AMAZON_PAY_SDK_CLIENT_EXCEPTION,
                [$e->getMessage()]
            );
        }

        /**
         * Fires **after** calling Amazon Pay's `Update Checkout Session` API
         *
         * This hook will not be called if an error occured
         *
         * @param array  $result
         * @param array  $formExtras
         * @param array  $args See {@see \Aivec\Welcart\SettlementModules\AmazonPay\API\CheckoutSession\Update::patch()}
         * @param string $settlementType `payonly` or `payandship`
         * @param string $paymentIntent `Authorize`, `AuthorizeWithCapture` or `Confirm`
         */
        do_action(
            'wcexaap_on_after_update_checkout_session',
            $result,
            $formExtras,
            $args,
            $this->settlementType,
            $this->paymentIntent
        );
        if (!empty($this->settlementType)) {
            /**
             * Fires **after** calling Amazon Pay's `Update Checkout Session` API
             *
             * This hook will not be called if an error occured
             *
             * @param array  $result
             * @param array  $formExtras
             * @param array  $args See {@see \Aivec\Welcart\SettlementModules\AmazonPay\API\CheckoutSession\Update::patch()}
             * @param string $settlementType `payonly` or `payandship`
             * @param string $paymentIntent `Authorize`, `AuthorizeWithCapture` or `Confirm`
             */
            do_action(
                "wcexaap_on_after_update_checkout_session_{$this->settlementType}",
                $result,
                $formExtras,
                $args,
                $this->settlementType,
                $this->paymentIntent
            );
        }

        return $result;
    }