public PickPlayerFlow(GameRegistry.Game game, Func<User, TelegramBot.TelegramBot, Message, GameRegistry.Game, Task<TelegramBotReply>> onPlayerPicked)
 {
     this.game = game;
     this.onPlayerPicked = onPlayerPicked;
 }
 public LeaveMessageConfirm(GameRegistry.Game game, User user)
 {
     this.game = game;
     this.user = user;
 }