You can search for identifiers within the package.
in-package search v0.2.0
passage
Age.Key
include sig ... end
type t
val inject : String.t -> t
val project : t -> String.t
val inject_list : String.t list -> t list
val project_list : t list -> String.t list
val compare : t -> t -> int
val equal : t -> t -> bool
val from_identity_file : string -> t Lwt.t