map -package:containers -package:base -package:insert-ordered-containers -package:incipit-base -package:basement -package:psqueues -package:dense-linear-algebra -package:hedgehog -package:charset -is:exact package:aeson is:exact

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