LonamiWebs/Telethon ? reverse-engineered prompt

Build me a Python 3 library that makes it easy to talk to Telegram from code using the real Telegram API, not just the simple bot stuff. I want it to work with both normal user accounts and bot accounts, and feel friendly for asyncio based apps. It should let me log in with my own api id and api hash, create a client, send and receive messages, upload and download files, get my profile info, and listen for new messages with simple event handlers. Please include a few clear examples so someone can start using it right away, plus basic documentation and tests. Keep it polished and practical, with the kind of API a real developer would actually want to use. If you need to check current Telegram or Python docs while building it, go ahead.