map -package:containers -package:ghc -package:conduit -package:bytestring -package:charset -package:psqueues -package:hedgehog -package:foldl -package:invertible -package:basement -package:text is:exact package:aeson

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