docs: def _re_establish_use_watch(self):
          """Call after a close/re-connect.
  
          Automatically re-establishes the USE and WATCH configs previously setup.
          """
          if self.current_tube != self.desired_tube:
              self.use(self.desired_tube)
          if self._watchlist != self.desired_watchlist:
              self.watchlist = self.desired_watchlist