docs: public void marshall(DeviceType deviceType, ProtocolMarshaller protocolMarshaller) {
  
          if (deviceType == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(deviceType.getDeviceKey(), DEVICEKEY_BINDING);
              protocolMarshaller.marshall(deviceType.getDeviceAttributes(), DEVICEATTRIBUTES_BINDING);
              protocolMarshaller.marshall(deviceType.getDeviceCreateDate(), DEVICECREATEDATE_BINDING);
              protocolMarshaller.marshall(deviceType.getDeviceLastModifiedDate(), DEVICELASTMODIFIEDDATE_BINDING);
              protocolMarshaller.marshall(deviceType.getDeviceLastAuthenticatedDate(), DEVICELASTAUTHENTICATEDDATE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }