map is:exact -package:basement -package:bytestring -package:ghc -package:psqueues -package:base -package:base-compat-batteries -package:base-compat -package:case-insensitive -package:monoidal-containers package:aeson

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