send method
Implementation
Future<void> send(ClientMsg msg) async {
bool rdy = await isReady();
if (!rdy) {
throw Exception("Websocket not ready, unable to send message $url");
}
dynamic msgToSend = msg.toJson();
String encodedMsg = jsonEncode(msgToSend);
_channel!.sink.add(encodedMsg);
Logger.log.d("🔼 send message to $url: $msgToSend");
// link relay to request
}