map -package:containers is:exact -package:basement -package:invertible -package:psqueues -package:case-insensitive -package:insert-ordered-containers -package:blaze-html -package:foldl -package:base-compat package:aeson

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