map -package:containers is:exact -package:case-insensitive -package:ghc -package:insert-ordered-containers -package:amazonka-core -package:dense-linear-algebra -package:monoidal-containers -package:invertible -package:base-prelude -package:filepath -package:base-compat -package:incipit-base -package:basement package:charset

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