map -package:base-compat -is:exact -package:basement -package:aeson -package:base-compat-batteries -package:bytestring -package:blaze-html -package:filepath -package:ghc -package:base-prelude -package:os-string -package:case-insensitive -package:hedgehog -package:base package:charset

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