You can search for identifiers within the package.
in-package search v0.2.0
val string_after : string -> int -> string
val quote : string -> string
val split : ?max:int -> string -> on:char -> string list
val full_split : string -> on:char -> string list
val trim_left : string -> string
val split_trim_left : string -> on:string -> trim:string -> string list