It appears lambdas are not triggered from items being pushed to SQS if [SendMessageBatch](https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_SendMessageBatch.html) is used instead of [SendMessage](https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_SendMessage.html)
testutil.create_lambda_function(func_name=lambda_name2,
                                            zip_file=python3_with_settings2,
                                            runtime=LAMBDA_RUNTIME_PYTHON36,
                                            handler='handler2.handler')
            result1 = self.lambda_client.invoke(FunctionName=lambda_name1, Payload=b'{}')
            result_data1 = result1['Payload'].read()
            result2 = self.lambda_client.invoke(FunctionName=lambda_name2, Payload=b'{}')
            result_data2 = result2['Payload'].read()
            self.assertEqual(result1['StatusCode'], 200)
            self.assertIn('setting1', to_str(result_data1))
            self.assertEqual(result2['StatusCode'], 200)
            self.assertIn('setting2', to_str(result_data2))
            
            testutil.delete_lambda_function(lambda_name1)
            testutil.delete_lambda_function(lambda_name2)
        finally:
            lambda_api.DO_USE_DOCKER = original_do_use_docker
    def test_lambda_subscribe_sns_topic(self):
        function_name = '{}-{}'.format(TEST_LAMBDA_FUNCTION_PREFIX, short_uid())
        testutil.create_lambda_function(handler_file=TEST_LAMBDA_ECHO_FILE,
            func_name=function_name, runtime=LAMBDA_RUNTIME_PYTHON36)
        topic = self.sns_client.create_topic(
            Name=TEST_SNS_TOPIC_NAME
        )
        topic_arn = topic['TopicArn']
        self.sns_client.subscribe(
            TopicArn=topic_arn,
            Protocol='lambda',
            Endpoint=lambda_api.func_arn(function_name),
        )