public function getAvailable()
    {
        return [
            self::TEMAPLATE_PAPER_FORM_A4 => 'A4',
            self::TEMAPLATE_PAPER_FORMAT_A3 => 'A3',
            self::TEMAPLATE_PAPER_FORMAT_A5 => 'A5',
            self::TEMAPLATE_PAPER_FORMAT_A6 => 'A6',
            self::TEMAPLATE_PAPER_FORMAT_LETTER => 'Letter',
            self::TEMAPLATE_PAPER_FORMAT_LEGAL => 'Legal',
        ];
    }