map -package:containers -package:ghc -package:imports -package:case-insensitive -package:incipit-base -package:basement -package:aeson -package:foldl -package:filepath -package:hedgehog -package:psqueues -package:regex-tdfa -package:base -is:exact package:charset

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