protected function setAttribute(string $name, $value) : void
    {
        // Convert values
        switch ($name) {
            case 'name':
                // no break here
            case 'value':
                $value = (string) $value;
                break;
            case 'prefixed':
                $value = (boolean) $value;
                break;
        }

        $this->$name = $value;
    }