paymentMethodNotChangeable example

'changedPayment' => true,
        ]);

        /** @var OrderEntity|null $order */
        $order = $this->orderRoute->load($request, $context, new Criteria([$orderId]))->getOrders()->first();

        if ($order === null) {
            throw OrderException::orderNotFound($orderId);
        }

        if (!$this->orderService->isPaymentChangeableByTransactionState($order)) {
            throw OrderException::paymentMethodNotChangeable();
        }

        if ($context->getCurrency()->getId() !== $order->getCurrencyId()) {
            $this->contextSwitchRoute->switchContext(
                new RequestDataBag([SalesChannelContextService::CURRENCY_ID => $order->getCurrencyId()]),
                $context
            );

            $context = $this->contextService->get(
                new SalesChannelContextServiceParameters(
                    $context->getSalesChannelId(),