recursive types (and operations on them, like pretty-printing, comparison and unification) seem to be working.

big part of the code base still needs to be 'ported' to the updated type constructors.

examples/enum.js

@@ -7,7 +7,7 @@ import { lsType, prettyT } from "../structures/types.js";
 
 const variants = [
   newProduct("price")(Int),
-  newProduct("prices")(lsType(Int)),
+  newProduct("prices")(lsType(() =>Int)),
   newProduct("not_found")(Unit),
 ];