You can search for identifiers within the package.
in-package search v0.2.0
include module type of struct include Astring.Char end
type t = char
val of_byte : int -> char
val unsafe_of_byte : int -> char
val of_int : int -> char option
val to_int : char -> int
val hash : char -> int
val equal : char -> char -> bool
val compare : char -> char -> int
module Ascii = Astring.Char.Ascii
val pp : Stdlib.Format.formatter -> char -> unit
val dump : Stdlib.Format.formatter -> char -> unit