map -package:containers -package:charset -package:invertible -is:exact -package:insert-ordered-containers -package:basement -package:foldl -package:hedgehog -package:bytestring -package:base -package:conduit is:exact package:aeson

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