map -package:containers -package:bytestring -package:charset -package:case-insensitive -package:basement -package:base-compat -package:incipit-base -package:pipes -package:imports -package:invertible package:aeson is:exact

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