Is there a ppx deriving feature that lists variants of a type?

Hi !
I wonder if there is a ppx [@@deriving list] that provides the list of argument-less variants from a type declaration. I know I can write an ocaml function using [@@deriving enum] that does this, but it would be even more straightforward to me if it already exists. Does one know about it ?
Thanks and have a good evening !

JaneStreet’s has got you covered:


Thanks a lot @smolkaj, it is even better than I wanted !