code: public void marshall(HyperParameterTrainingJobSummary hyperParameterTrainingJobSummary, ProtocolMarshaller protocolMarshaller) {
  
          if (hyperParameterTrainingJobSummary == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTrainingJobName(), TRAININGJOBNAME_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTrainingJobArn(), TRAININGJOBARN_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTuningJobName(), TUNINGJOBNAME_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getCreationTime(), CREATIONTIME_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTrainingStartTime(), TRAININGSTARTTIME_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTrainingEndTime(), TRAININGENDTIME_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTrainingJobStatus(), TRAININGJOBSTATUS_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getTunedHyperParameters(), TUNEDHYPERPARAMETERS_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getFailureReason(), FAILUREREASON_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getFinalHyperParameterTuningJobObjectiveMetric(),
                      FINALHYPERPARAMETERTUNINGJOBOBJECTIVEMETRIC_BINDING);
              protocolMarshaller.marshall(hyperParameterTrainingJobSummary.getObjectiveStatus(), OBJECTIVESTATUS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.