protected override Task OnActivateAsync()
        {
            ActorEventSource.Current.ActorMessage(this, "Actor activated.");
            _callbackChannel = GetEvent<IRoomCallbacks>();

            return Task.FromResult(0);
        }
        protected override Task OnActivateAsync()
        {
            ActorEventSource.Current.ActorMessage(this, "Actor activated.");
            _callbackChannel = GetEvent <IRoomCallbacks>();

            return(Task.FromResult(0));
        }