+ //! Return a list of features, which refers to the feature
+ //! \param theFeature a feature
+ //! \param theRefs a list of features
+ //! \param isSendError a flag whether the error message should be send
+ virtual void refsToFeature(std::shared_ptr<ModelAPI_Feature> theFeature,
+ std::set<std::shared_ptr<ModelAPI_Feature> >& theRefs,
+ const bool isSendError = true) = 0;
+