+ /**
+ * Creates data node with descendants at root level or under existing node (if parent node xpath is provided).
+ *
+ * @param cmHandle The identifier for a network function, network element, subnetwork or any other cm
+ * object managed by Network CM Proxy
+ * @param parentNodeXpath xpath to parent node or '/' for root level
+ * @param jsonData data as JSON string
+ */
+ void createDataNode(@NonNull String cmHandle, @NonNull String parentNodeXpath, @NonNull String jsonData);
+