public async Task <string> Transfer([NotNull] TransferState cmd)
{
var ps = cmd.CurrentSession;
ConnectState.PlayOrigin = ProtoUtils.ConvertPlayOrigin(ps.PlayOrigin);
ConnectState.Options = ProtoUtils.ConvertPlayerOptions(cmd.Options);
var sessionId = SetContext(ps.Context);
var pb = cmd.Playback;
TracksKeeper.InitializeFrom(list => list.FindIndex(z => z.Uid == ps.CurrentUid), pb.CurrentTrack, cmd.Queue);
ConnectState.PositionAsOfTimestamp = pb.PositionAsOfTimestamp;
ConnectState.Timestamp = pb.IsPaused
? TimeProvider.CurrentTimeMillis() : pb.Timestamp;
await LoadTransforming();
return(sessionId);
}