Have you had experience developing or integrating Telegram bots?

Yes, I have experience developing and integrating Telegram bots using Python. I usually use the python-telegram-bot library, which simplifies working with the Telegram Bot API.

Here's an example of a simple bot that responds to the /start command:

from telegram import Update
from telegram.ext import Updater, CommandHandler, CallbackContext

TOKEN = 'YOUR_BOT_TOKEN'

def start(update: Update, context: CallbackContext):
    update.message.reply_text('Hello! I am your bot.')

updater = Updater(TOKEN)
updater.dispatcher.add_handler(CommandHandler('start', start))

updater.start_polling()
updater.idle()

I have also integrated bots with external APIs to fetch data, handled user input, and implemented dialog logic. My experience includes setting up webhooks and working with databases to store user states.