map is:exact -package:lens -package:case-insensitive -package:containers -package:foldl -package:aeson -package:hedgehog -package:basement -package:blaze-html -package:integration -package:pipes -package:ghc -package:dlist -package:imports -package:bytestring -package:invertible -package:text package:charset

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