Stat container metadata

        :param container: container name (Container is equivalent to
                          Bucket term in Amazon).

def stat_container(self, container):
        """Stat container metadata

        :param container: container name (Container is equivalent to
                          Bucket term in Amazon).
        """
        LOG.debug('stat_container() with %s is success.', self.driver)
        return self.driver.stat_container(container)