def del_runner(self, runner_id: int, runner_name: str):
        """Delete runner

        Args:
             runner_id: id in runner table
             runner_name: {item_type}_{item_id}
        """
        with self._lock:
            key = self.cache_key(runner_id, runner_name)
            del self._cache[key]
Delete runner

        Args:
             runner_id: id in runner table
             runner_name: {item_type}_{item_id}
        
web_console_v2/api/fedlearner_webconsole/composer/runner_cache.py