getPaymentHandlerFromTransaction example

OrderEntity $order,
        RequestDataBag $dataBag,
        SalesChannelContext $salesChannelContext,
        ?Struct $preOrderStruct
    ): void {
        try {
            $transaction = $this->getTransaction($order, $salesChannelContext);
            if ($transaction === null) {
                return;
            }

            $paymentHandler = $this->getPaymentHandlerFromTransaction($transaction);

            if (!($paymentHandler instanceof PreparedPaymentHandlerInterface)
                || $preOrderStruct === null) {
                return;
            }

            $preparedTransactionStruct = $this->paymentTransactionStructFactory->prepared($transaction, $order);
            $paymentHandler->capture($preparedTransactionStruct, $dataBag, $salesChannelContext, $preOrderStruct);
        } catch (PaymentProcessException $e) {
            $this->logger->error('An error occurred during processing the capture of the payment. The order has been placed.', ['orderId' => $order->getId(), 'exceptionMessage' => $e->getMessage()]);