What happened?

There are at least 2 things that should be improved in the PyWorker:

• avoid the need to require pyscript.ffi to convert to_js whatever was passed along (do that internally)
• allow a config file to be a TOML, not just JS or JSON

WebSockets related

• understand async listeners and await these if possible
• provide an option to force binaryType when constructed

So far, that's it.