Is there a topic for DeriveAnyClass extension in user guide? It is mentioned several times in different places, also I see link to it in from cabal haddocs [0] into its page inside "other type extensions" [1], but it leads nowhere.

Thank you.

[0]: https://www.haskell.org/cabal/release/cabal-latest/doc/API/Cabal/Language-Haskell-Extension.html

[1]: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/other-type-extensions.html#derive-any-class