You can search for identifiers within the package.
in-package search v0.2.0
type 'a wtree =
| Node of int * 'a wtree * 'a wtree
| Leaf of 'a
Type for weighted trees.
val fold_tree : (int -> 'b -> 'b -> 'b) -> ('a -> 'b) -> 'a wtree -> 'b
val size_of_tree : ('a -> int) -> 'a wtree -> int