Returns an ``HttpResponse`` object instance with Content-Type:
        application/json.

        The response body will be the return value of ``self.serialize(obj)``

def render_to_response(self, obj, **response_kwargs):
        """
        Returns an ``HttpResponse`` object instance with Content-Type:
        application/json.

        The response body will be the return value of ``self.serialize(obj)``
        """
        return HttpResponse(self.serialize(obj), content_type='application/json', **response_kwargs)