code: def delete_action_cache(self, action_key):
          
          if self.cache:
              self.cache.delete(
                  self.app.config['ACCESS_ACTION_CACHE_PREFIX'] +
                  action_key
              )
docs: Delete action needs and excludes from cache.
  
          .. note:: It returns the action if a cache system is defined.
  
          :param action_key: The unique action name.