public async static void ProcessInput(this ITelegramBotClient botClient, Update update) { if (update == null) { return; } var message = update.Message; if (message?.Type == MessageType.TextMessage) { if (BotTools.TryParseCommand(message.Text, out string command, out string args)) { if (VpnBotCommandCollection.Includes(command)) { botClient.ProcessCommand(message, command, args); } } else { await botClient.SendTextMessageAsync(message.Chat.Id, "Sorry, i don't understand you."); } }