def delete_instance(self, sid):
        uri = "%s/%s" % (self.uri, sid)
        resp, instance = self.request("DELETE", uri)
        return resp.status_code == 204
Regression test for Issue 23 - we used to use pre_delete, which
dataset/ETHPy150Open awslabs/lambda-apigateway-twilio-tutorial/twilio/rest/resources/base.py/ListResource.delete_instance--crossover with--dataset/ETHPy150Open django-mptt/django-mptt/tests/myapp/tests.py/DeletionTestCase.test_delete_node_with_descendants_and_siblings