async def close(self):
    (await self._close_common())
    self.cancel_task_safe(self.self_advertise_task)
    self.cancel_task_safe(self.address_relay_task)
async def close(self):
    (await self._close_common())
    self.cancel_task_safe(self.self_advertise_task)
    self.cancel_task_safe(self.address_relay_task)