map -package:containers -package:case-insensitive -package:insert-ordered-containers -package:invertible -package:basement -package:Cabal-syntax -package:bytestring -package:conduit -is:exact package:aeson -is:exact is:exact

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