code: private List<OpenEngSBModel> convertSimpleModelWrapperList(List<AdvancedModelWrapper> wrappers) {
          List<OpenEngSBModel> models = new ArrayList<OpenEngSBModel>();
          for (AdvancedModelWrapper wrapper : wrappers) {
              models.add(wrapper.getUnderlyingModel());
          }
          return models;
      }
docs: Converts a list of SimpleModelWrapper objects to a list of OpenEngSBModel objects