You can search for identifiers within the package.
in-package search v0.2.0
type t = File_kind.t * File_perm.t
module Host : sig ... end
val to_string : host:Host.t -> t -> string
val of_string : host:Host.t -> string -> t
val to_code : host:Host.t -> t -> int
val of_code_exn : host:Host.t -> int -> t
val of_code : host:Host.t -> int -> t option