**What is wrong with the docs?** There's a TODO for the [`autogen-modules` field](https://cabal.readthedocs.io/en/latest/cabal-package-description-file.html#pkg-field-autogen-modules). https://github.com/haskell/cabal/blame/7da2987abb234a9710d290568ee90de37d5742e1/doc/cabal-package-description-file.rst#L3037
