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)
queue_name = 'queue-%s' % short_uid()
        queue_info = self.client.create_queue(QueueName=queue_name)
        queue_url = queue_info['QueueUrl']
        self.assertIn(queue_name, queue_url)
        
        self.client.send_message(QueueUrl=queue_url, MessageBody='msg123')
        for i in range(2):
            messages = self.client.receive_message(QueueUrl=queue_url, VisibilityTimeout=0)['Messages']
            self.assertEqual(len(messages), 1)
            self.assertEqual(messages[0]['Body'], 'msg123')
        
        self.client.delete_message(QueueUrl=queue_url, ReceiptHandle=messages[0]['ReceiptHandle'])
        response = self.client.receive_message(QueueUrl=queue_url)
        self.assertFalse(response.get('Messages'))
        
        self.client.send_message(QueueUrl=queue_url, MessageBody='msg234')
        messages = self.client.receive_message(QueueUrl=queue_url)['Messages']
        response = self.client.receive_message(QueueUrl=queue_url)
        self.assertFalse(response.get('Messages'))
        self.client.change_message_visibility(QueueUrl=queue_url,
                                              ReceiptHandle=messages[0]['ReceiptHandle'], VisibilityTimeout=0)
        for i in range(2):
            messages = self.client.receive_message(QueueUrl=queue_url, VisibilityTimeout=0)['Messages']
            self.assertEquals(len(messages), 1)
            self.assertEquals(messages[0]['Body'], 'msg234')
        
        self.client.delete_queue(QueueUrl=queue_url)
    def test_create_fifo_queue(self):