code: public function handle(CommandInterface $command)
      {
          /**
           * @var Payment $payment
           */
          $payment = $command->getPayload();
  
          $identity = $this->identityService->findOneBy([
              'objectIdentifier' => $payment->getIdentifier(),
              'objectType' => Payment::TYPE,
              'adapterName' => PlentymarketsAdapter::NAME,
          ]);
  
          if (null !== $identity) {
              return true;
          }
  
          $orderIdentity = $this->identityService->findOneBy([
              'objectIdentifier' => $payment->getOrderIdentifer(),
              'objectType' => Order::TYPE,
              'adapterName' => PlentymarketsAdapter::NAME,
          ]);
  
          if (null === $orderIdentity) {
              $this->logger->notice('order was not exported before payment handling');
  
              return false;
          }
  
          $paymentResult = $this->findOrCreatePlentyPayment($payment);
  
          if ((int) $orderIdentity->getAdapterIdentifier() === (int) $paymentResult['order']['orderId']) {
              return true;
          }
  
          $this->client->request(
              'POST',
              'payment/' . $paymentResult['id'] . '/order/' . $orderIdentity->getAdapterIdentifier()
          );
  
          return true;
      }
docs: {@inheritdoc}
  
  @var TransferObjectCommand $command