def node_del_attrs(self, node):
        """Remove all attributes that are used for putting this node
        on this type of list.
        """
        try:
            delattr(node, self.next_name)
            delattr(node, self.prev_name)
        except __HOLE__:
            pass
dataset/ETHPy150Open osrg/ryu/ryu/services/protocols/bgp/utils/circlist.py/CircularListType.node_del_attrs