map -package:containers is:exact -package:basement -package:base-prelude -package:monoidal-containers -package:charset -package:invertible -package:psqueues -package:os-string -package:integration -package:text -package:filepath package:aeson

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