// Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
$book->setLanguage($this->language);
$book->setDescription('Some articles saved on my wallabag');
// Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
$book->setLanguage($this->language);
$book->setDescription('Some articles saved on my wallabag');