code: public void marshall(Evaluation evaluation, ProtocolMarshaller protocolMarshaller) {
  
          if (evaluation == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(evaluation.getEvaluationId(), EVALUATIONID_BINDING);
              protocolMarshaller.marshall(evaluation.getMLModelId(), MLMODELID_BINDING);
              protocolMarshaller.marshall(evaluation.getEvaluationDataSourceId(), EVALUATIONDATASOURCEID_BINDING);
              protocolMarshaller.marshall(evaluation.getInputDataLocationS3(), INPUTDATALOCATIONS3_BINDING);
              protocolMarshaller.marshall(evaluation.getCreatedByIamUser(), CREATEDBYIAMUSER_BINDING);
              protocolMarshaller.marshall(evaluation.getCreatedAt(), CREATEDAT_BINDING);
              protocolMarshaller.marshall(evaluation.getLastUpdatedAt(), LASTUPDATEDAT_BINDING);
              protocolMarshaller.marshall(evaluation.getName(), NAME_BINDING);
              protocolMarshaller.marshall(evaluation.getStatus(), STATUS_BINDING);
              protocolMarshaller.marshall(evaluation.getPerformanceMetrics(), PERFORMANCEMETRICS_BINDING);
              protocolMarshaller.marshall(evaluation.getMessage(), MESSAGE_BINDING);
              protocolMarshaller.marshall(evaluation.getComputeTime(), COMPUTETIME_BINDING);
              protocolMarshaller.marshall(evaluation.getFinishedAt(), FINISHEDAT_BINDING);
              protocolMarshaller.marshall(evaluation.getStartedAt(), STARTEDAT_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.