You can search for identifiers within the package.
in-package search v0.2.0
type t
val count : int
val of_int : int -> t
val to_int : t -> int
val iter : (t -> unit) -> unit
val fold : (t -> 'a -> 'a) -> 'a -> 'a
val tabulate : (t -> 'a) -> t -> 'a