code: public void marshall(StepExecutionStatusDetail stepExecutionStatusDetail, ProtocolMarshaller protocolMarshaller) {
  
          if (stepExecutionStatusDetail == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(stepExecutionStatusDetail.getState(), STATE_BINDING);
              protocolMarshaller.marshall(stepExecutionStatusDetail.getCreationDateTime(), CREATIONDATETIME_BINDING);
              protocolMarshaller.marshall(stepExecutionStatusDetail.getStartDateTime(), STARTDATETIME_BINDING);
              protocolMarshaller.marshall(stepExecutionStatusDetail.getEndDateTime(), ENDDATETIME_BINDING);
              protocolMarshaller.marshall(stepExecutionStatusDetail.getLastStateChangeReason(), LASTSTATECHANGEREASON_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.