map is:exact -package:lens -package:charset -package:containers -package:basement -package:case-insensitive -package:amazonka-core -package:dlist -package:hedgehog -package:base -package:monoidal-containers package:aeson

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