map -package:containers -package:basement -package:conduit -is:exact -package:case-insensitive -package:ghc -package:incipit-base -package:os-string -package:monoidal-containers -package:bytestring -package:pipes -package:base-prelude -package:filepath -package:base-compat package:charset -is:exact

map :: (Char -> Char) -> CharSet -> CharSet
charset Data.CharSet