code: public void marshall(TransferData transferData, ProtocolMarshaller protocolMarshaller) {
  
          if (transferData == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(transferData.getTransferMessage(), TRANSFERMESSAGE_BINDING);
              protocolMarshaller.marshall(transferData.getRejectReason(), REJECTREASON_BINDING);
              protocolMarshaller.marshall(transferData.getTransferDate(), TRANSFERDATE_BINDING);
              protocolMarshaller.marshall(transferData.getAcceptDate(), ACCEPTDATE_BINDING);
              protocolMarshaller.marshall(transferData.getRejectDate(), REJECTDATE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.