getExternalTarget example

'metaTitle' => $category->getMetaTitle(),
            'metaKeywords' => $category->getMetaKeywords(),
            'metaDescription' => $category->getMetaDescription(),
            'cmsHeadline' => $category->getCmsHeadline(),
            'cmsText' => $category->getCmsText(),
            'active' => true,
            'template' => $category->getTemplate(),
            'productBoxLayout' => $this->getProductBoxLayout($category),
            'blog' => $category->isBlog(),
            'path' => $categoryPath,
            'external' => $category->getExternalLink(),
            'externalTarget' => $category->getExternalTarget(),
            'hideFilter' => !$category->displayFacets(),
            'hideTop' => !$category->displayInNavigation(),
            'changed' => null,
            'added' => null,
            'attribute' => $attribute,
            'attributes' => $category->getAttributes(),
            'media' => $media,
            'mediaId' => $category->getMedia() ? $category->getMedia()->getId() : null,
            'link' => $this->getCategoryLink($category),
            'streamId' => $productStream ? $productStream['id'] : null,
            'productStream' => $productStream,
            

'id' => $category->getId(),
            'name' => $category->getName(),
            'metaKeywords' => $category->getMetaKeywords(),
            'metaDescription' => $category->getMetaDescription(),
            'cmsHeadline' => $category->getCmsHeadline(),
            'cmsText' => $category->getCmsText(),
            'active' => true,
            'template' => $category->getTemplate(),
            'blog' => $category->isBlog(),
            'path' => $path,
            'external' => $category->getExternalLink(),
            'externalTarget' => $category->getExternalTarget(),
            'hideFilter' => !$category->displayFacets(),
            'hideTop' => !$category->displayInNavigation(),
            'hidetop' => !$category->displayInNavigation(),
            'attribute' => $attribute,
            'media' => $media,
            'description' => $category->getName(),
            'link' => $category->getExternalLink() ?: $url . $category->getId(),
            'flag' => false,
            'subcategories' => [],
            'childrenCount' => $childrenCount,
        ];
    }