tg-2.py

def start(bot, update):
    bots.append(bot)
    updates.append(update)
    update.message.reply_text(
        "Hi. I'm IcarusBot. I'm waiting for your input!")

    return SIGNALS
  
  
def cancel(bot, update):
    user = update.message.from_user
    update.message.reply_text('Bye! I hope we can talk again some day.')

    return ConversationHandler.END


def error(bot, update, error):
    """Log Errors caused by Updates."""
    # print('Update "%s" caused error "%s"', update, error)
    pass