Python Telethon

import asyncio
from telethon import TelegramClient, events

# These example values won't work. You must get your own api_id and
# api_hash from https://my.telegram.org, under API Development.
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'

async def main():
  client = TelegramClient('session_name', api_id, api_hash)
  await client.start()

asyncio.run(main())
navin_hariharan