map -package:containers -package:charset -package:invertible -is:exact -package:insert-ordered-containers -package:basement -package:foldl is:exact -package:dlist -package:case-insensitive -package:hedgehog -package:regex-tdfa -package:ghc package:aeson

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