map -package:base-prelude -package:basement -package:imports -package:containers -is:exact -package:integration -package:bytestring -package:os-string -package:dense-linear-algebra -package:insert-ordered-containers -package:case-insensitive -package:filepath -package:base-compat -package:ghc -package:dlist package:charset

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