In [this PR](https://github.com/localstack/localstack/pull/1200/files) we introduced a new way of starting S3 in a separate process.

In the meantime, the service startup has been significantly reworked, and it seems that we can integrate the S3 starter into the [`multiserver.py`](https://github.com/localstack/localstack/blob/master/localstack/utils/server/multiserver.py) based loading approach that loads multiple APIs in a single process, for performance reasons. We should look into that.
if attribute_name == 'Arn':
            return self.arn
        raise UnformattedGetAttTemplateException()
    kinesis_models.Stream.get_cfn_attribute = Kinesis_Stream_get_cfn_attribute
def inject_stats_endpoint():
    """ Inject a simple /_stats endpoint into the moto server backend Web app. """
    
    from moto import server as moto_server
    def _get_stats():