map -package:containers -package:imports -package:dlist -package:basement -package:psqueues -package:monoidal-containers -package:aeson -is:exact -package:amazonka-core -package:foldl -package:regex-tdfa -package:base-prelude -package:bytestring -package:case-insensitive package:charset

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