std::shared_ptr<ModelHighAPI_Folder> addFolder(const std::shared_ptr<ModelAPI_Document>& theDoc,
const ModelHighAPI_Reference& theFirstFeature,
const ModelHighAPI_Reference& theLastFeature);
std::shared_ptr<ModelHighAPI_Folder> addFolder(const std::shared_ptr<ModelAPI_Document>& theDoc,
const ModelHighAPI_Reference& theFirstFeature,
const ModelHighAPI_Reference& theLastFeature);