map -package:containers -package:dlist -package:conduit -package:charset -package:base -package:bytestring -package:invertible -package:hedgehog -package:incipit-base -package:dense-linear-algebra -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.