map -package:containers is:exact -package:conduit -package:bytestring -package:charset -package:insert-ordered-containers -package:base-compat -package:case-insensitive -package:dlist -package:imports -package:pipes package:aeson

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