code: def update_container(self, container, metadata, **kwargs):
          
          LOG.debug('update_object() with %s is success.', self.driver)
          return self.driver.update_container(container, metadata, **kwargs)
docs: Update container metadata
  
          :param container: container name (Container is equivalent to
                            Bucket term in Amazon).
          :param metadata(dict): additional metadata to include in the request.
          :param **kwargs(dict): extend args for specific driver.