map -package:basement -is:exact -package:base-compat-batteries -package:invertible -package:blaze-html -package:foldl -is:exact -package:containers -package:monoidal-containers -package:psqueues -package:os-string -package:bytestring -package:dense-linear-algebra -package:text -package:base -package:case-insensitive -package:aeson package:charset

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