map -package:containers is:exact -package:conduit -package:charset -package:case-insensitive -package:foldl -package:basement -package:bytestring -package:filepath -package:blaze-html -package:amazonka-core package:aeson

map :: (a -> b) -> KeyMap a -> KeyMap b
aeson Data.Aeson.KeyMap
Map a function over all values in the map.