AWS supports the following Ruby runtimes:

<!--StartFragment-->
Name | Identifier | SDK for Ruby | Operating system
-- | -- | -- | --
Ruby 2.7 | ruby2.7 | 3.0.1 | Amazon Linux 2
Ruby 2.5 | ruby2.5 | 3.0.1 | Amazon Linux

<!--EndFragment-->

Currently, `localstack/lambda` only contains the `ruby2.5` tag. Will the 2.7 runtime be supported in the (near) future?
runtime=LAMBDA_RUNTIME_PYTHON36
        )
        queue_url_1 = sqs_client.create_queue(QueueName=queue_name_1)['QueueUrl']
        queue_arn_1 = aws_stack.sqs_queue_arn(queue_name_1)
        lambda_client.create_event_source_mapping(
            EventSourceArn=queue_arn_1,
            FunctionName=function_name
        )
        sqs_client.send_message(QueueUrl=queue_url_1, MessageBody=json.dumps({'foo': 'bar'}))
        events = retry(get_lambda_log_events, sleep_before=3, function_name=function_name)
        
        self.assertEqual(len(events[0]['Records']), 1)
        rs = sqs_client.receive_message(QueueUrl=queue_url_1)
        self.assertEqual(rs.get('Messages'), None)
        
        sqs_client.delete_queue(QueueUrl=queue_url_1)
        lambda_client.delete_function(FunctionName=function_name)
    def test_create_kinesis_event_source_mapping(self):
        function_name = 'lambda_func-{}'.format(short_uid())
        stream_name = 'test-foobar'
        testutil.create_lambda_function(
            handler_file=TEST_LAMBDA_ECHO_FILE,
            func_name=function_name,
            runtime=LAMBDA_RUNTIME_PYTHON36
        )
        arn = aws_stack.kinesis_stream_arn(stream_name, account_id='000000000000')
        lambda_client = aws_stack.connect_to_service('lambda')
        lambda_client.create_event_source_mapping(
            EventSourceArn=arn,
            FunctionName=function_name