map -package:containers -package:basement -package:conduit -is:exact -package:invertible is:exact -package:integration -package:base -package:bytestring -package:psqueues -package:hedgehog -package:foldl package:aeson

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