You can search for identifiers within the package.
in-package search v0.2.0
exception Error of string
val _TODO_ : string -> string -> 'a
val set_signal_handle : int -> (unit -> unit) -> unit
val error : ('a, unit, string, 'b) Stdlib.format4 -> 'c
val command : ('a, unit, string, unit) Stdlib.format4 -> 'b
val command_ : ('a, unit, string, unit) Stdlib.format4 -> 'b
val remove_rec : string -> unit
val remove_all : string -> unit
val find_file : string -> string
val find_in_path : string list -> string -> string