You can search for identifiers within the package.
in-package search v0.2.0
type t
val empty : t
val length : t -> int
val append : t -> t -> t
val lowercase : t -> t
val iter : (int -> unit) -> t -> unit
val of_string : std_string -> t
val to_utf_8 : ('a -> std_string -> 'a) -> 'a -> t -> 'a
val compare : t -> t -> int