convertVoteAverageStruct example

        if ($product->displayFromPrice()) {
            $promotion['priceStartingFrom'] = $promotion['price'];
        }

        if ($product->getCover()) {
            $promotion['image'] = $this->convertMediaStruct($product->getCover());
        }

        if ($product->getVoteAverage()) {
            $promotion['sVoteAverage'] = $this->convertVoteAverageStruct($product->getVoteAverage());
        }

        $promotion['prices'] = [];
        foreach ($product->getPrices() as $price) {
            $promotion['prices'][] = $this->convertProductPriceStruct($price);
        }

        $promotion['linkBasket'] = $this->config->get('baseFile') .
            '?sViewport=basket&sAdd=' . $promotion['ordernumber'];

        $promotion['linkDetails'] = $this->config->get('baseFile') .