Is it possible listField with Embedded fields ?

Hi, 

Is it possible to implement ListField with EmbeddedField? Something:

``` python
stars = ListField(EmbeddedDocumentField(StarsModel))
```

where...

``` python
class StarsModel(EmbeddedDocument):
    score = db.IntField(default=0)
    voter = db.ReferenceField(User)
```

How to make this `schema`?
