map -package:containers -package:bytestring -package:monoidal-containers -package:base-compat -is:exact -package:charset -package:conduit -package:ghc -package:filepath -package:insert-ordered-containers package:aeson is:exact

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