map -package:containers -package:insert-ordered-containers -package:integration -package:blaze-html -package:dlist -package:monoidal-containers -package:hedgehog -package:ghc -package:invertible -package:bytestring -package:base-prelude -is:exact -package:Cabal-syntax package:charset

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