map -package:containers -package:insert-ordered-containers -package:ghc -package:invertible -package:base -is:exact is:exact -package:foldl -package:dlist -package:base-compat -package:imports -package:hedgehog package:aeson

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