code: public void marshall(StartAutomationExecutionRequest startAutomationExecutionRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (startAutomationExecutionRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(startAutomationExecutionRequest.getDocumentName(), DOCUMENTNAME_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getDocumentVersion(), DOCUMENTVERSION_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getParameters(), PARAMETERS_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getClientToken(), CLIENTTOKEN_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getMode(), MODE_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getTargetParameterName(), TARGETPARAMETERNAME_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getTargets(), TARGETS_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getTargetMaps(), TARGETMAPS_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getMaxConcurrency(), MAXCONCURRENCY_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getMaxErrors(), MAXERRORS_BINDING);
              protocolMarshaller.marshall(startAutomationExecutionRequest.getTargetLocations(), TARGETLOCATIONS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.