code: public void marshall(ParameterHistory parameterHistory, ProtocolMarshaller protocolMarshaller) {
  
          if (parameterHistory == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(parameterHistory.getName(), NAME_BINDING);
              protocolMarshaller.marshall(parameterHistory.getType(), TYPE_BINDING);
              protocolMarshaller.marshall(parameterHistory.getKeyId(), KEYID_BINDING);
              protocolMarshaller.marshall(parameterHistory.getLastModifiedDate(), LASTMODIFIEDDATE_BINDING);
              protocolMarshaller.marshall(parameterHistory.getLastModifiedUser(), LASTMODIFIEDUSER_BINDING);
              protocolMarshaller.marshall(parameterHistory.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(parameterHistory.getValue(), VALUE_BINDING);
              protocolMarshaller.marshall(parameterHistory.getAllowedPattern(), ALLOWEDPATTERN_BINDING);
              protocolMarshaller.marshall(parameterHistory.getVersion(), VERSION_BINDING);
              protocolMarshaller.marshall(parameterHistory.getLabels(), LABELS_BINDING);
              protocolMarshaller.marshall(parameterHistory.getTier(), TIER_BINDING);
              protocolMarshaller.marshall(parameterHistory.getPolicies(), POLICIES_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.