map -package:containers -package:base -package:insert-ordered-containers -package:basement -is:exact -package:case-insensitive -package:invertible -package:base-compat -package:integration -package:conduit package:aeson is:exact

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