sender.py

admins = tuple()

def is_cancel(message: str):
    return message == '/cancel'

def is_admin(chat_id: int):
    return chat_id in admins

def cancel_end(bot, message):
    bot.send_message(chat_id=message.chat.id, text=f'Current operation canceled.')

def chain_message(bot, message, answer_text: str, next_func):
    res = is_admin(message.chat.id) and not is_cancel(message.text)
    if is_cancel(message.text):
        cancel_end(bot, message)
    elif res:
        bot.send_message(chat_id=message.chat.id, text=f'{answer_text}\nRun /cancel to cancel action.')
        bot.register_next_step_handler(message, next_func)
    return res

def chain_end(bot, message, answer_text: str):
    res = is_admin(message.chat.id) and not is_cancel(message.text)
    if is_cancel(message.text):
        cancel_end(bot, message)
    elif res:
        bot.send_message(chat_id=message.chat.id, text=f'{answer_text}\nRun /update to see changes.')
    return res