+bool XGUI_EXPORT isSubOfComposite(const ObjectPtr& theObject, const FeaturePtr& theFeature);
+
+/*!
+*/
+void refsDirectToFeatureInAllDocuments(const ObjectPtr& theSourceObject, const ObjectPtr& theObject,
+ const QObjectPtrList& theIgnoreList,
+ std::set<FeaturePtr>& theDirectRefFeatures,
+ std::set<FeaturePtr>& theAlreadyProcessed);
+
+/*!
+ Returns a container of references feature to the source object. The search happens in the object
+ document and in other Part documents if the object belongs to the PartSet. The search is recursive,
+ in other words it is applyed to set of the found objects until it is possible.
+ It do not returns the referenced features to the object if this references is a composite feature
+ which has the object as a sub object.
+ \param theSourceObject an object, which references are searched
+ \param theObject an intermediate recursive object, should be set in the source object
+ \param theIgnoreList an ignore list, the found referernces which coincide with the objects are ignored
+ \param theDirectRefFeatures direct references
+ \param theIndirectRefFeatures indirect references. These are features that refers to the direct features
+ \param theAlreadyProcessed set of processed elements, used for optimization (do not reanalyse processed)
+ \return a boolean value
+ */
+void XGUI_EXPORT refsToFeatureInAllDocuments(const ObjectPtr& theSourceObject,
+ const ObjectPtr& theObject,
+ const QObjectPtrList& theIgnoreList,
+ std::set<FeaturePtr>& theDirectRefFeatures,
+ std::set<FeaturePtr>& theIndirectRefFeatures,
+ std::set<FeaturePtr>& theAlreadyProcessed);
+
+/*!
+* Returns true if the result is a sub object of some composite object
+* \param theObject a result object
+* \returns boolean value
+*/
+bool XGUI_EXPORT isSubOfComposite(const ObjectPtr& theObject);
+
+/*!
+ Returns converted workshop
+ \param theWorkshop an interface workshop
+ \return XGUI workshop instance
+*/
+XGUI_EXPORT XGUI_Workshop* workshop(ModuleBase_IWorkshop* theWorkshop);
+
+};