docs: private AdvancedModelWrapper performMerge(AdvancedModelWrapper source, AdvancedModelWrapper target) {
          if (source == null || target == null) {
              return null;
          }
          ModelDescription sourceDesc = source.getModelDescription();
          ModelDescription targetDesc = target.getModelDescription();
          Object transformResult = transformationEngine.performTransformation(sourceDesc, targetDesc,
              source.getUnderlyingModel(), target.getUnderlyingModel());
          AdvancedModelWrapper wrapper = AdvancedModelWrapper.wrap(transformResult);
          wrapper.removeOpenEngSBModelEntry(EDBConstants.MODEL_VERSION);
          return wrapper;
      }