public static async Task <Message?> SendOrUpdateMessage(this ITelegramBotClient bot, long chatId, string?text, IReplyMarkup replyMarkup = null, bool onlysend = false, CancellationToken ct = default(CancellationToken)) { if (bot == null) { return(null); } return(await bot.SendOrUpdateMessage(GetChat(bot, chatId), text, replyMarkup, onlysend, ct)); }