code: async def close_room(self, room, namespace=None):
          
          return await self.server.close_room(
              room, namespace=namespace or self.namespace)
docs: Close a room.
  
          The only difference with the :func:`socketio.Server.close_room` method
          is that when the ``namespace`` argument is not given the namespace
          associated with the class is used.
  
          Note: this method is a coroutine.