docs: public void marshall(AddApplicationReferenceDataSourceRequest addApplicationReferenceDataSourceRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (addApplicationReferenceDataSourceRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(addApplicationReferenceDataSourceRequest.getApplicationName(), APPLICATIONNAME_BINDING);
              protocolMarshaller.marshall(addApplicationReferenceDataSourceRequest.getCurrentApplicationVersionId(), CURRENTAPPLICATIONVERSIONID_BINDING);
              protocolMarshaller.marshall(addApplicationReferenceDataSourceRequest.getReferenceDataSource(), REFERENCEDATASOURCE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }