I am trying to execute this code on Google Colab but It takes forever to be done and nothing appears to be working on the bot so when I check the updates of the telelgram bot There is no response. the Token code is correct.

!pip install telebot

import random
import telebot
from telebot import types

bot = telebot.TeleBot('API_Token')

@bot.message_handler(commands=['generate'])
def generate_string(message):
    chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
    generated_string = ''.join(random.choice(chars) for _ in range(16))
    link = f"{generated_string}"
    user_id = bot.get_updates()[-1].message.chat.id
    bot.send_message(user_id, link)

@bot.message_handler(commands=['stop'])
def stop_bot(message):
    user_id = bot.get_updates()[-1].message.chat.id
    bot.send_message(user_id, "Type 'yes' to stop the bot.")
    bot.register_next_step_handler(message, stop_bot_handler)

def stop_bot_handler(message):
    user_id = bot.get_updates()[-1].message.chat.id
    if message.text.lower() == 'yes':
        bot.send_message(user_id, "Bot stopped.")
        bot.stop_polling()
    else:
        bot.send_message(user_id, "Type 'yes' to stop the bot.")
        bot.register_next_step_handler(message, stop_bot_handler)

if __name__ == '__main__':
    bot.polling()