You can search for identifiers within the package.
in-package search v0.2.0
exception GettextCamomileCreate of string * exn
exception GettextCamomileRecode of string * exn
module Charset : GettextCharset.CHARSET_TYPE
module Map : GettextTypes.REALIZE_TYPE
module Hashtbl : GettextTypes.REALIZE_TYPE
module Open : GettextTypes.REALIZE_TYPE