def stop(self):
        self._running = False
        if self._timeout is not None:
            self.io_loop.remove_timeout(self._timeout)
            self._timeout = None
Removes ``node`` from its current tree, with the given set of
dataset/ETHPy150Open felipecruz/zmqpy/zmqpy/eventloop/ioloop.py/PeriodicCallback.stop--crossover with--dataset/ETHPy150Open django-mptt/django-mptt/mptt/managers.py/TreeManager._inter_tree_move_and_close_gap