You can search for identifiers within the package.
in-package search v0.2.0
val string_to_list : string -> [ `Malformed of string | `Uchar of Stdlib.Uchar.t ] list
val length : string -> int
val compare : Stdlib.String.t -> Stdlib.String.t -> int
val sub : string -> int -> int -> string
val is_space : Stdlib.Uchar.t -> bool
val cmap_utf_8 : (Stdlib.Uchar.t -> [< `Self | `Uchars of Stdlib.Uchar.t list ]) -> string -> string
val lowercase : string -> string
val uppercase : string -> string
val capitalize : string -> string
val titlecase : string -> string
val trim : string -> string
val is_case_aux : (Stdlib.Uchar.t -> bool) -> string -> bool
val is_lower : string -> bool
val is_upper : string -> bool
val split : ?is_delim:(Stdlib.Uchar.t -> bool) -> string -> string list