map -package:containers -package:bytestring -package:charset -package:case-insensitive -package:invertible -package:dlist -package:dense-linear-algebra -package:Cabal-syntax -package:amazonka-core package:aeson is:exact

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