public static function get($name)
    {
        if (!isset(self::$config[$name])) {
            $filename = __DIR__.'/../_config/'.$name.'.php';
            if (!file_exists($filename)) {
                throw new \RuntimeException('Error go\\DB config "'.$name.'"');
            }
            self::$config[$name] = include $filename;
        }
        return self::$config[$name];
    }