map -package:containers -package:bytestring -package:monoidal-containers -package:charset -package:foldl -package:blaze-html -package:invertible -package:basement -package:regex-tdfa -package:dense-linear-algebra -package:psqueues -package:amazonka-core package:aeson is:exact

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