+/*!
+ * Searches for Part result that contains the reference to the given document.
+ * \param theMain document that contains the searched feature
+ * \param theSub document that is searched, the resulting feature references to it
+ * \returns null if not found
+ */
+MODELAPI_EXPORT ResultPtr findPartResult(const DocumentPtr& theMain, const DocumentPtr& theSub);
+
+/*!
+ * Returns the composite feature - parent of this feature.
+ * \param theFeature the sub-element of composite
+ * \returns null if it is not sub-element of composite
+ */
+MODELAPI_EXPORT CompositeFeaturePtr compositeOwner(const FeaturePtr& theFeature);
+
+/*!
+ * Returns the compsolid result - parent of this result.
+ * \param theSub the sub-element of comp-solid
+ * \returns null if it is not sub-element of composite
+ */
+MODELAPI_EXPORT ResultCompSolidPtr compSolidOwner(const ResultPtr& theSub);
+
+/*!
+* Returns true if the result contains a not empty list of sub results. It processes result compsolid.
+* \param theResult a result object
+* \returns boolean value
+*/
+MODELAPI_EXPORT bool hasSubResults(const ResultPtr& theResult);
+