map -package:containers -package:Cabal-syntax -package:integration -package:base-compat -package:conduit -package:dlist -package:blaze-html -package:case-insensitive -package:base-prelude -package:dense-linear-algebra -package:monoidal-containers -package:psqueues -package:ghc package:charset

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