map -package:containers -package:insert-ordered-containers -package:ghc -package:invertible -package:basement -package:Cabal-syntax -package:base -package:os-string -package:amazonka-core -is:exact -package:psqueues -is:exact -package:filepath -package:monoidal-containers -package:aeson -package:imports -package:regex-tdfa package:charset

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