map -package:containers -package:case-insensitive -package:base-prelude -is:exact -package:charset -package:integration -package:conduit -package:invertible -package:basement -package:dlist -package:Cabal-syntax -package:base-compat package:aeson is:exact

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