map -package:containers -package:Cabal-syntax -package:integration -package:conduit -package:basement -package:aeson -package:insert-ordered-containers -package:psqueues -package:bytestring -package:ghc -package:dlist -package:base-compat-batteries -package:monoidal-containers -package:regex-tdfa -package:base-compat -package:incipit-base -package:unordered-containers -package:base -package:vector-stream -package:base-prelude -package:invertible package:charset

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