map -package:containers -package:bytestring -package:conduit -package:invertible -package:imports -package:foldl -package:case-insensitive -package:integration -package:monoidal-containers -package:hedgehog package:aeson is:exact

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