hasAvailableVariant example

'articleDetailsID' => $product->getVariantId(),
            'ordernumber' => $product->getNumber(),
            'highlight' => $product->highlight(),
            'description' => $product->getShortDescription(),
            'description_long' => $product->getLongDescription(),
            'esd' => $product->hasEsd(),
            'articleName' => $product->getName(),
            'taxID' => $product->getTax()->getId(),
            'tax' => $tax->getTax(),
            'instock' => $product->getStock(),
            'isAvailable' => $product->isAvailable(),
            'hasAvailableVariant' => $product->hasAvailableVariant(),
            'weight' => $product->getWeight(),
            'shippingtime' => $product->getShippingTime(),
            'pricegroupActive' => false,
            'pricegroupID' => null,
            'length' => $product->getLength(),
            'height' => $product->getHeight(),
            'width' => $product->getWidth(),
            'laststock' => $product->isCloseouts(),
            'additionaltext' => $product->getAdditional(),
            'datum' => $createDate,
            'update' => $updateDate,
            

$product->setCheapestPriceRule($listProduct->getCheapestPriceRule());
        $product->setManufacturerNumber($listProduct->getManufacturerNumber());
        $product->setMetaTitle($listProduct->getMetaTitle());
        $product->setTemplate($listProduct->getTemplate());
        $product->setHasConfigurator($listProduct->hasConfigurator());
        $product->setSales($listProduct->getSales());
        $product->setHasEsd($listProduct->hasEsd());
        $product->setEsd($listProduct->getEsd());
        $product->setIsPriceGroupActive($listProduct->isPriceGroupActive());
        $product->setBlockedCustomerGroupIds($listProduct->getBlockedCustomerGroupIds());
        $product->setVoteAverage($listProduct->getVoteAverage());
        $product->setHasAvailableVariant($listProduct->hasAvailableVariant());
        $product->setCheapestUnitPrice($listProduct->getCheapestUnitPrice());
        $product->setFallbackPriceCount($listProduct->getFallbackPriceCount());
        $product->setCustomerPriceCount($listProduct->getCustomerPriceCount());

        foreach ($listProduct->getAttributes() as $name => $attribute) {
            $product->addAttribute($name, $attribute);
        }

        foreach ($listProduct->getStates() as $state) {
            $product->addState($state);
        }
    }

private function isProductValid(ListProduct $product, ShopContextInterface $context): bool
    {
        if (\in_array($context->getCurrentCustomerGroup()->getId(), $product->getBlockedCustomerGroupIds())) {
            return false;
        }

        $prices = $product->getPrices();
        if (empty($prices)) {
            return false;
        }

        if ($this->config->get('hideNoInStock') && !$product->isAvailable() && !$product->hasAvailableVariant()) {
            return false;
        }

        $ids = array_map(function DCategory $category) {
            return $category->getId();
        }, $product->getCategories());

        return \in_array($context->getShop()->getCategory()->getId(), $ids);
    }

    private function allowBuyInListing(ListProduct $product): bool
    {