You can search for identifiers within the package.
in-package search v0.2.0
val current_dir_name : string
val parent_dir_name : string
val dir_sep : string
val concat : string -> string -> string
val is_relative : string -> bool
val is_implicit : string -> bool
val check_suffix : string -> string -> bool
val chop_suffix : string -> string -> string
val extension : string -> string
val remove_extension : string -> string
val chop_extension : string -> string
val basename : string -> string
val dirname : string -> string
val temp_file : ?temp_dir:string -> string -> string -> string
val open_temp_file : ?mode:Stdlib.open_flag list -> ?perms:int -> ?temp_dir:string -> string -> string -> string * Stdlib.out_channel
val get_temp_dir_name : unit -> string
val set_temp_dir_name : string -> unit
val temp_dir_name : string
val quote : string -> string
val string_rexists : string -> f:(char -> bool) -> from:int -> int option
val skip_end_slashes : string -> from:int -> [> `All_slashes | `Ends_at of int ]
val split : string -> string * string
val parts : string -> string list