map is:exact -package:text -package:containers -package:charset -package:bytestring -package:invertible -package:filepath -package:monoidal-containers -package:case-insensitive -package:dlist -package:base-compat package:aeson

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