map -package:containers -package:charset is:exact -package:insert-ordered-containers -package:base -package:basement -package:filepath -package:case-insensitive -package:foldl -package:conduit -package:os-string package:aeson

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