map -package:Cabal -package:base -package:text -is:exact package:aeson -is:module

Map a function over all values in the map.
Transform the keys and values of a KeyMap.
Map values and collect the Just results.
Map values and collect the Just results.
Same as fmap. Provided for the consistency with ToJSONKeyFunction.
A map from JSON key type Key to v.
Convert a HashMap to a KeyMap.
Convert a HashMap Textto a KeyMap.
Convert a Map to a KeyMap.
Convert a Map Textto a KeyMap.
Convert a KeyMap to a HashMap.
Convert a KeyMap to a HashMap Text.
Convert a KeyMap to a Map.
Convert a KeyMap to a Map Text.
Contravariant map, as ToJSONKeyFunction is a contravariant functor.