Using the most recent version of LocalStack and the most recent version of the AWS CLI...

```
awslocal sqs create-queue --queue-name foo                                                                                                                                                                         
{                                                                                                                                                                                                                  
    "QueueUrl": "http://localhost:4566/000000000000/foo"
} 

awslocal sqs send-message --message-body hello --queue-url http://localhost/000000000000/foo                                                                                                                       
{                                                                                                                                                                                                                  
  "MD5OfMessageBody": "5d41402abc4b2a76b9719d911017c592", 
  "MessageId": "53be5840-770a-49e6-8e23-cfca3469c7ff" 
}
                                                                                                                                                                                                                                                                                                              
awslocal sqs receive-message --queue-url http://localhost/000000000000/foo
{
   "Messages": [                                                                                                                                                                                                  
        {                                                                                                                                                                                                          
            "MessageId": "53be5840-770a-49e6-8e23-cfca3469c7ff",                                                                                                                                                   
            "ReceiptHandle": "ZmE3NTAxZjItZTEzMS00ZDNjLWE0ODgtODUzNTU0ZjE4YzBjIGFybjphd3M6c3FzOnVzLWVhc3QtMTowMDAwMDAwMDAwMDA6Zm9vIDUzYmU1ODQwLTc3MGEtNDllNi04ZTIzLWNmY2EzNDY5YzdmZiAxNjk4OTUwNjM2LjQxODc3ODc=",   
            "MD5OfBody": "5d41402abc4b2a76b9719d911017c592",                                                                                                                                                       
            "Body": "hello"                                                                                                                                                                                        
        }                                                                                                                                                                                                          
    ]                                                                                                                                                                                                              
}                                                                                                                                                                                                                  

awslocal sqs change-message-visibility --visibility-timeout 10 --queue-url http://localhost:4566/000000000000/foo --receipt-handle ZmE3NTAxZjItZTEzMS00ZDNjLWE0ODgtODUzNTU0ZjE4YzBjIGFybjphd3M6c3FzOnVzLWVhc3QtMTo\wMDAwMDAwMDAwMDA6Zm9vIDUzYmU1ODQwLTc3MGEtNDllNi04ZTIzLWNmY2EzNDY5YzdmZiAxNjk4OTUwNjM2LjQxODc3ODc=                                                                                                                  
                                                                                                                                                                                                                   
An error occurred (AWS.SimpleQueueService.MessageNotInflight) when calling the ChangeMessageVisibility operation: Unknown 
```
aws_client.sqs.send_message(Url=sqs_queue, MessageBody="foobar", DelaySeconds=1)
        result = aws_client.sqs.receive_message(Url=sqs_queue)
        assert "Messages" in result
        assert result["Messages"] == []
        result = aws_client.sqs.receive_message(Url=sqs_queue, WaitTimeSeconds=2)
        assert "Messages" in result
        assert len(result["Messages"]) == 1
    @markers.aws.only_localstack
    def test_approximate_number_of_messages_delayed(self, sqs_queue, aws_client):
        
        
        aws_client.sqs.send_message(Url=sqs_queue, MessageBody="ed")
        aws_client.sqs.send_message(Url=sqs_queue, MessageBody="foo", DelaySeconds=2)
        aws_client.sqs.send_message(Url=sqs_queue, MessageBody="bar", DelaySeconds=2)
        result = aws_client.sqs.get_queue_attributes(
            Url=sqs_queue,
            AttributeNames=[
                "ApproximateNumberOfMessages",
                "ApproximateNumberOfMessagesNotVisible",
                "ApproximateNumberOfMessagesDelayed",
            ],
        )
        assert result["Attributes"] == {
            "ApproximateNumberOfMessages": "1",
            "ApproximateNumberOfMessagesNotVisible": "0",
            "ApproximateNumberOfMessagesDelayed": "2",
        }
        def _assert():