Their code is full of things like:

    type fileOps []any // []T where T is (string | int64)

Go does not have neither generics nor union types. So people have to do this kind of thing :( I feel sorry for them.

Reminds of Java 4 (15 years ago or something) where code was full of this crap:

    List /* <String> */ values;
    Map /* <String, Object> */ map;

Some devs spent a whole week doing nothing other than removing those commented out generic type declarations once Java finally got generics!