map -package:containers -package:ghc -package:base-compat -package:case-insensitive -package:bytestring -package:conduit -package:charset -is:exact -package:base-compat-batteries is:exact -package:base package:aeson

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