Metadata for Ember-Data fixture adapter?

I’m using the fixture adapter to take a UI-first approach to designing an application. However, I’ve come to a point where the “server” should return metadata with a request. Is there currently a way to fake out metadata responses using the fixture adapter?

Reading the Code, by default the Fixture Adapter assumes that there is NO serializer and that the fixture data is already in the correct format. Worse, because of the way they assigned the serializer, assigning a default Serializer does not take effect.

Just found a solution, see this Issue