[Standards] XEP-0484: Fast Authentication Streamlining Tokens and TLS Early Data example

Hi, I cannot figure out how to use early data in XEP-0484. Main question, which part does go into the early data? <authenticate/> stanza? And how does it combine with XML stream start? How does the server should reply and when? It would be nice to have the complete example for successful auth, including indication of what goes into early data and what does not. Maybe people who already implemented early data in XEP-0484 could comment. https://xmpp.org/extensions/xep-0484.html