docs: public void marshall(ReferenceDataSourceDescription referenceDataSourceDescription, ProtocolMarshaller protocolMarshaller) {
  
          if (referenceDataSourceDescription == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(referenceDataSourceDescription.getReferenceId(), REFERENCEID_BINDING);
              protocolMarshaller.marshall(referenceDataSourceDescription.getTableName(), TABLENAME_BINDING);
              protocolMarshaller.marshall(referenceDataSourceDescription.getS3ReferenceDataSourceDescription(), S3REFERENCEDATASOURCEDESCRIPTION_BINDING);
              protocolMarshaller.marshall(referenceDataSourceDescription.getReferenceSchema(), REFERENCESCHEMA_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }