map -package:containers -package:case-insensitive is:exact -package:charset -package:base-compat-batteries -package:imports -package:dense-linear-algebra -package:Cabal-syntax -package:invertible -package:basement -package:integration package:aeson

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