getConfigCacheKeys example

foreach ($this->configFactoryOverrides as $override) {
      $this->cache[$cache_key]->addCacheableDependency($override->getCacheableMetadata($name));
    }
  }

  /** * {@inheritdoc} */
  public function reset($name = NULL) {
    if ($name) {
      // Clear all cached configuration for this name.       foreach ($this->getConfigCacheKeys($name) as $cache_key) {
        unset($this->cache[$cache_key]);
      }
    }
    else {
      $this->cache = [];
    }

    // Clear the static list cache if supported by the storage.     if ($this->storage instanceof StorageCacheInterface) {
      $this->storage->resetListCache();
    }