def _cache(self, conf):
        if conf not in self._cached:
            path = sh.joinpths(self._path, conf + self._conf_ext)
            if not sh.isfile(path):
                raise exceptions.YamlConfigNotFoundException(path)

            self._cached[conf] = utils.load_yaml(path) or {}
Invalidate template caches and handle the updating of the persistent
dataset/ETHPy150Open openstack/anvil/anvil/cfg.py/YamlRefLoader._cache--crossover with--dataset/ETHPy150Open rvanlaar/easy-transifex/src/transifex/transifex/resources/handlers.py/invalidate_stats_cache