code: public void marshall(Operation operation, ProtocolMarshaller protocolMarshaller) {
  
          if (operation == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(operation.getId(), ID_BINDING);
              protocolMarshaller.marshall(operation.getType(), TYPE_BINDING);
              protocolMarshaller.marshall(operation.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(operation.getErrorMessage(), ERRORMESSAGE_BINDING);
              protocolMarshaller.marshall(operation.getErrorCode(), ERRORCODE_BINDING);
              protocolMarshaller.marshall(operation.getCreateDate(), CREATEDATE_BINDING);
              protocolMarshaller.marshall(operation.getUpdateDate(), UPDATEDATE_BINDING);
              protocolMarshaller.marshall(operation.getTargets(), TARGETS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.