(self)
return self._root
Return the cluster tree root node.

        Returns
        -------
        root : Tree
Return the cluster tree root node.
Return the cluster tree root node .
def root(self):
        # type: () -> Tree
        """
        Return the cluster tree root node.

        Returns
        -------
        root : Tree
        """
        return self._root
def root ( self ) : # type: () -> Tree return self . _root