assignTemplateDocuments example

        if ($entry->getOrder() !== null) {
            $mail->setAssociation(LogEntryBuilder::ORDER_ASSOCIATION, $entry->getOrder());
        }

        if ($entry->getShop() !== null) {
            $mail->setAssociation(LogEntryBuilder::SHOP_ASSOCIATION, $entry->getShop());
        }

        $this->assignOrderDocuments($entry, $mail);
        $this->assignTemplateDocuments($entry, $mail);

        return $mail;
    }

    protected function assignOrderDocuments(Log $logEntry, Enlight_Components_Mail $mail): void
    {
        if ($logEntry->getDocuments()->isEmpty()) {
            return;
        }

        foreach ($logEntry->getDocuments() as $document) {