Hi, first of all, thanks to maintain the docs (and flix itself, of cource)! While I'm learning, I found that 'Sendable' trait, which I discovered at [Automatic derivation page](https://doc.flix.dev/automatic-derivation.html) has actually been removed before flix 0.56.0 by https://github.com/flix/flix/commit/e62a992e17d4bb49f18c8ab82e2622eacd9783b3.
Hi, first of all, thanks to maintain the docs (and flix itself, of cource)!
While I'm learning, I found that 'Sendable' trait, which I discovered at Automatic derivation page has actually been removed before flix 0.56.0 by flix/flix@e62a992.