convertRelatedProductStreamStruct example

if ($category->getMedia()) {
            $media = $this->convertMediaStruct($category->getMedia());
        }

        $attribute = [];
        if ($category->hasAttribute('core')) {
            $attribute = $category->getAttribute('core')->toArray();
        }

        $productStream = null;
        if ($category->getProductStream()) {
            $productStream = $this->convertRelatedProductStreamStruct($category->getProductStream());
        }

        $categoryPath = '|' . implode('|', $category->getPath()) . '|';

        $blogBaseUrl = $this->config->get('baseFile') . '?sViewport=blog&sCategory=';
        $baseUrl = $this->config->get('baseFile') . '?sViewport=cat&sCategory=';
        $detailUrl = ($category->isBlog() ? $blogBaseUrl : $baseUrl) . $category->getId();
        $canonicalParams = $this->getCategoryCanonicalParams($category);

        if ($media && !\array_key_exists('path', $media)) {
            $media['path'] = $media['source'];
        }