getContentPlainEn example

'created_at' => (new \DateTime())->format(Defaults::STORAGE_DATE_TIME_FORMAT),
        ]);

        if ($defaultLangId !== $deLangId) {
            $connection->insert('mail_template_translation', [
                'mail_template_id' => Uuid::fromHexToBytes($mailTemplateId),
                'language_id' => $defaultLangId,
                'sender_name' => 'Shopware Administration',
                'subject' => 'Password recovery',
                'description' => '',
                'content_html' => $this->getContentHtmlEn(),
                'content_plain' => $this->getContentPlainEn(),
                'created_at' => (new \DateTime())->format(Defaults::STORAGE_DATE_TIME_FORMAT),
            ]);
        }

        if ($defaultLangId !== Uuid::fromHexToBytes(Defaults::LANGUAGE_SYSTEM)) {
            $connection->insert('mail_template_translation', [
                'mail_template_id' => Uuid::fromHexToBytes($mailTemplateId),
                'language_id' => Uuid::fromHexToBytes(Defaults::LANGUAGE_SYSTEM),
                'sender_name' => 'Shopware Administration',
                'subject' => 'Password recovery',
                'description' => '',
                

'created_at' => (new \DateTime())->format(Defaults::STORAGE_DATE_TIME_FORMAT),
        ]);

        if ($defaultLangId !== $deLangId) {
            $connection->insert('mail_template_translation', [
                'mail_template_id' => Uuid::fromHexToBytes($mailTemplateId),
                'language_id' => $defaultLangId,
                'sender_name' => '{{ shopName }}',
                'subject' => 'Password recovery',
                'description' => '',
                'content_html' => $this->getContentHtmlEn(),
                'content_plain' => $this->getContentPlainEn(),
                'created_at' => (new \DateTime())->format(Defaults::STORAGE_DATE_TIME_FORMAT),
            ]);
        }

        if ($defaultLangId !== Uuid::fromHexToBytes(Defaults::LANGUAGE_SYSTEM)) {
            $connection->insert('mail_template_translation', [
                'mail_template_id' => Uuid::fromHexToBytes($mailTemplateId),
                'language_id' => Uuid::fromHexToBytes(Defaults::LANGUAGE_SYSTEM),
                'sender_name' => '{{ shopName }}',
                'subject' => 'Password recovery',
                'description' => '',
                

use UpdateMailTrait;

    public function getCreationTimestamp(): int
    {
        return 1672164687;
    }

    public function update(Connection $connection): void
    {
        $update = new MailUpdate(
            MailTemplateTypes::MAILTYPE_USER_RECOVERY_REQUEST,
            $this->getContentPlainEn(),
            $this->getContentHtmlEn()
        );

        $this->updateEnMail($connection, $update);
    }

    public function updateDestructive(Connection $connection): void
    {
        // implement update destructive     }