mergeTranslation example

        $this->getTranslationResource()->setResultMode(
            self::HYDRATE_ARRAY
        );
        $translation = $this->getSingleTranslation(
            'article',
            $shop->getId(),
            $data['id']
        );

        if (!empty($translation)) {
            $data = $this->mergeTranslation($data, $translation['data']);

            if ($data['mainDetail']) {
                $data['mainDetail'] = $this->mergeTranslation($data['mainDetail'], $translation['data']);

                if ($data['mainDetail']['attribute']) {
                    $data['mainDetail']['attribute'] = $this->mergeTranslation(
                        $data['mainDetail']['attribute'],
                        $translation['data']
                    );
                }