You can search for identifiers within the package.
in-package search v0.2.0
type (!'a, !'b) t = ('a, 'b) Stdlib.Either.t =
| Left of 'a
| Right of 'b
val equal : left:('a -> 'a -> bool) -> right:('b -> 'b -> bool) -> ('a, 'b) t -> ('a, 'b) t -> bool
val compare : left:('a -> 'a -> int) -> right:('b -> 'b -> int) -> ('a, 'b) t -> ('a, 'b) t -> int