map -package:containers -package:bytestring -package:conduit -package:dense-linear-algebra -package:monoidal-containers -package:ghc -package:base -package:basement -package:psqueues -package:integration -package:pipes package:aeson is:exact

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