(self, )
return rs
get a map that can map a node to its parent node
get a map that can map a node to its parent node
get a map that can map a node to its parent node
def _get_parent_nid_map(self, ):

        """
        get a map that can map a node to its parent node
        """

        rs = {}
        for nid in self._cur_to_split_node_info:
            if nid == 0:
                return None
            rs[nid] = self._cur_to_split_node_info[nid]['pid']
        return rs
def _get_parent_nid_map ( self , ) : rs = { } for nid in self . _cur_to_split_node_info : if nid == 0 : return None rs [ nid ] = self . _cur_to_split_node_info [ nid ] [ 'pid' ] return rs