map -package:containers -package:base-compat -package:base -package:basement -package:invertible -package:ghc -package:os-string -package:case-insensitive -package:psqueues -is:exact is:exact -package:conduit package:aeson

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