send method
Implementation
Future<MmWsReply> send(MmWsAction action) async {
if (_ws == null || _ws!.closeCode != null) await connect();
var completer = Completer<MmWsReply>();
var seq = _nextSeq++;
var tosend = action.toJson();
tosend['seq'] = seq;
_actionCompleters[seq] = completer;
_ws?.add(json.encode(tosend));
return completer.future.timeout(Duration(seconds: 2), onTimeout: () {
_actionCompleters.remove(seq);
return MmWsReply.noReply();
});
}