code: def getRoot(self):
          
  
          root = Node(self.dumpHierarchy())
          self._linkParent(root)
          return root
docs: Dump a hierarchy immediately from target runtime and store into a Node (subclass of :py:class:`AbstractNode 
          <poco.sdk.AbstractNode>`) object.
  
          Returns:
              :py:class:`inherit from AbstractNode <Node>`: Each time a new node instance is created by latest hierarchy 
               data.