You can search for identifiers within the package.
in-package search v0.2.0
type !'a t = 'a * 'a list
val iter : ('a -> unit) -> 'a t -> unit
val map : ('a -> 'b) -> 'a t -> 'b t
val of_list : 'a list -> 'a t
val to_list : 'a t -> 'a list