map -package:containers -package:case-insensitive -is:exact -package:ghc -package:base-compat -package:invertible -package:base -package:imports -package:filepath -package:conduit -package:base-compat-batteries package:aeson is:exact

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