map -package:containers -package:charset -package:case-insensitive -package:ghc -package:insert-ordered-containers -package:basement -package:psqueues -package:os-string -package:base-prelude -package:base-compat-batteries is:exact package:aeson

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