how to reconnect when needed? about dartis HOT 3 CLOSED

  /// Future that is resolved when the connection is closed.
  ///
  /// If the connection closes gracefully this future will be completed and
  /// future attempts to use the connection will throw a
  /// [RedisConnectionClosedException].
  ///
  /// If the connection is broken, an error occurs writing/reading to/from the
  /// connection this future will be resolved with error. If unhandled this
  /// will propagate to the encapsulating [Zone] where it may be handled.
  /// If using the default root [Zone] this will cause the isolate to crash.
  ///
  /// If not implementing custom reconnection logic it might be desirable to
  /// simply restart the process when it crashes.
  ///
  /// If implementing custom reconnection logic, consumers should stop using a
  /// connection once [done] have been resolved, as all future commands will
  /// will throw an error. If an error occurs reading or writing all outstanding
  /// commands will be resolved with an exception.
  Future<void> get done => _done.future;

final connection = await dartis.Connection.connect(
        'redis://${host ?? 'localhost'}:${port}');

    unawaited(connection.done.then((err) {
      print('Redis disconnected.');

      _client = null;
    }));

    _client = await dartis.Client(connection);