docs: public void marshall(Parameter parameter, ProtocolMarshaller protocolMarshaller) {
  
          if (parameter == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(parameter.getParameterName(), PARAMETERNAME_BINDING);
              protocolMarshaller.marshall(parameter.getParameterType(), PARAMETERTYPE_BINDING);
              protocolMarshaller.marshall(parameter.getParameterValue(), PARAMETERVALUE_BINDING);
              protocolMarshaller.marshall(parameter.getNodeTypeSpecificValues(), NODETYPESPECIFICVALUES_BINDING);
              protocolMarshaller.marshall(parameter.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(parameter.getSource(), SOURCE_BINDING);
              protocolMarshaller.marshall(parameter.getDataType(), DATATYPE_BINDING);
              protocolMarshaller.marshall(parameter.getAllowedValues(), ALLOWEDVALUES_BINDING);
              protocolMarshaller.marshall(parameter.getIsModifiable(), ISMODIFIABLE_BINDING);
              protocolMarshaller.marshall(parameter.getChangeType(), CHANGETYPE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }