I mean, honestly, if you’re just doing a chat bot you don’t really need a library to connect to chat.
Open a socket and start sending IRC commands. See Guide | Twitch Developers for the details on that. You don’t need a websockets library, just a normal socket that any programming language should support out-of-the-box.
If you have never used sockets before, it’ll be a great learning experience for you. And the IRC protocol is extremely basic, you just send command-lines back and forth.
To start off, try to open a socket to a chat server, and send the PASS and NICK commands, and then receive the data from the server. After that it’s a breeze.