code: def list_container_objects(self, container, prefix=None, delimiter=None):
          
          LOG.debug('list_container_objects() with %s is success.', self.driver)
          return self.driver.list_container_objects(container, prefix, delimiter)
docs: List container objects
  
          :param container: container name (Container is equivalent to
                            Bucket term in Amazon).
          :param prefix: prefix query
          :param delimiter: string to delimit the queries on