Timber\Loader::_get_cache_mode PHP Method

    private function _get_cache_mode($cache_mode)
    {
        if (empty($cache_mode) || self::CACHE_USE_DEFAULT === $cache_mode) {
            $cache_mode = $this->cache_mode;
        }
        // Fallback if self::$cache_mode did not get a valid value
        if (!in_array($cache_mode, self::$cache_modes)) {
            $cache_mode = self::CACHE_OBJECT;
        }
        return $cache_mode;
    }