map -package:containers -package:bytestring -package:blaze-html -package:dlist -package:dense-linear-algebra -package:Cabal-syntax -package:filepath -package:amazonka-core -package:ghc -package:integration -package:base -package:aeson -is:exact -package:basement -package:invertible package:charset

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