map -package:containers -package:conduit -is:exact -package:aeson -package:monoidal-containers -package:invertible -package:bytestring -package:base-compat-batteries -package:case-insensitive -package:blaze-html -package:os-string -package:regex-tdfa package:charset

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