map -package:containers -package:insert-ordered-containers -package:dense-linear-algebra -package:invertible -package:amazonka-core -package:basement -package:os-string -package:bytestring -package:regex-tdfa -package:monoidal-containers -package:aeson -package:psqueues -package:incipit-base -package:base -package:unordered-containers -package:conduit -package:case-insensitive package:charset

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