map -package:containers -package:base is:exact -package:charset -package:imports -package:basement -package:base-compat -package:monoidal-containers -package:conduit -package:blaze-html -package:bytestring package:aeson

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