// Migrate storage format if needed.
	for {
		// Migrate IAM configuration, if necessary.
		if err := saveIAMFormat(retryCtx, sys.store); err != nil {
			if configRetriableErrors(err) {
				logger.Info("Waiting for all MinIO IAM sub-system to be initialized.. possible cause (%v)", err)
				time.Sleep(time.Duration(r.Float64() * float64(time.Second)))
				continue
			}

		HTTPStatusCode: 499, // No official code, use nginx value.
	},
	ErrTooManyRequests: {
		Code:           "TooManyRequests",
		Description:    "Deadline exceeded while waiting in incoming queue, please reduce your request rate",
		HTTPStatusCode: http.StatusServiceUnavailable,
	},
	ErrUnsupportedMetadata: {
		Code:           "InvalidArgument",

	// errors on a previous write(2) operation are reported only on the final close() that releases
	// the open file descriptor.
	//
	// Failing to check the return value when closing a file may lead to silent loss of data.
	// This can especially be observed with NFS and with disk quota.
	return w.Close()
}

				if !s.IsLocal() {
					for {
						if s.IsOnline() {
							break
						}
						time.Sleep(100 * time.Millisecond)
						if time.Since(t) > 10*time.Second {
							return nil, nil, errors.New("timeout waiting for disk to come online")
						}
					}
				}
			}
		}
	}

	return obj, fsDirs, nil
}

func prepareErasure16(ctx context.Context) (ObjectLayer, []string, error) {

}

// ListVersions lists current versions, and current deleted
// versions returns error for unexpected entries.
// showPendingDeletes is set to true if ListVersions needs to list objects marked deleted
// but waiting to be replicated
func (x xlMetaV2) ListVersions(volume, path string, allParts bool) ([]FileInfo, error) {
	versions := make([]FileInfo, 0, len(x.versions))
	var err error

	var dst xlMetaV2Version

result = channel.queue_declare(exclusive=False)
queue_name = result.method.queue

channel.queue_bind(exchange='bucketevents',
                   queue=queue_name)

print(' [*] Waiting for logs. To exit press CTRL+C')

def callback(ch, method, properties, body):
    print(" [x] %r" % body)

channel.basic_consume(callback,
                      queue=queue_name,