```
class SupercalifragilisticexpialidociousManager(models.Manager):
    # Sorry, I'm sick of Foo and Spam for now.
    def get_query_set(self, account=None):
        return super(SupercalifragilisticexpialidociousManager,
                     self).get_query_set().filter(uncle=model_thats_using_this_manager_instance.uncle)

```

The magic I'm looking for is the "uncle=model\_thats\_using\_this\_manager\_instance.uncle". It seems like I should be able to do this somehow. I know I could say `self.model` to get the model, but how to get the instance?