Why is the bot sending 2 messages?

Question

Python

When I press back on the custom keyboard, the bot sends two "Main Menu" messages instead of one, and if I repeat these manipulations, the bot will send even more (2, 4, 8...)

Part of the code

@bot.message_handler(content_types=['text'])
def main(message):
    if message.text == "⬅️Назад":
        bot.send_message(message.chat.id, "Главное меню", reply_markup=keyboard1)

pyTelegramBotAPI library: https://github.com/eternnoir/pyTelegramBotAPI

Answer 1

Can I see the whole code?