hash() translate?

[courajs]

Right now hash() takes string arguments, and returns a hash of attribute keys -> attribute values.
It's sometimes useful to use different keys than the attribute key of the object. Would you be down for the ability to pass a hash argument instead? Like this:

Ember.Object.extend({
  thingType: 'dog',
  thingName: 'Fido',
  values: hash({
    type: 'thingType',
    name: 'thingName'
  }) // { type: 'dog', name: 'Fido' }
});