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

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