You can search for identifiers within the package.
in-package search v0.2.0
spotlib
Copiedfilename.Cygwin
val current_dir_name : string
val parent_dir_name : string
val dir_sep : string
val is_dir_sep : string -> int -> bool
val is_relative : string -> bool
val is_implicit : string -> bool
val check_suffix : string -> string -> bool
val temp_dir_name : string
val quote : string -> string
val basename : string -> string
val dirname : string -> string