[Python] django-rest-framework, multitable model inheritance, ModelSerializers and nested...

I can't find this info in the docs or on the interwebs.
latest django-rest-framework, django 1.6.5

How does one create a ModelSerializer that can handle a nested serializers where the nested model is implemented using multitable inheritance?

e.g.

######## MODELS
class OtherModel(models.Model):
stuff = models.CharField(max_length=255)

class MyBaseModel(models.Model):
whaddup = models.CharField(max_length=255)
other_model = models.ForeignKey(OtherModel)

class ModelA(MyBaseModel):
attr_a = models.CharField(max_length=255)

class ModelB(MyBaseModel):
attr_b = models.CharField(max_length=255)


####### SERIALIZERS
class MyBaseModelSerializer(serializers.ModelSerializer):
class Meta:
model=MyBaseModel

class OtherModelSerializer(serializer.ModelSerializer):
mybasemodel_set = MyBaseModelSerializer(many=True)

class Meta:
model = OtherModel


This obviously doesn't work but illustrates what i'm trying to do here.
In OtherModelSerializer, I'd like mybasemodel_set to serialize specific represenntations of either ModelA or ModelB depending on what we have.

If it matters, I'm also using django.model_utils and inheritencemanager so i can retrieve a queryset where each instance is already an instance of appropriate subclass.

Thanks

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