getCustomerGroupContexts example

    public function getListingPrices(
        Shop $shop,
        array $products,
        array $configurations,
        ?VariantFacet $variantFacet = null
    ) {
        $combinationPrices = [];

        $contexts = $this->getCustomerGroupContexts($shop);

        /** @var ShopContextInterface $context */
        foreach ($contexts as $context) {
            $prices = $this->fetchPrices($products, $context);
            $key = $context->getCurrentCustomerGroup()->getKey();

            foreach ($products as $product) {
                if (!isset($configurations[$product->getNumber()]) || !isset($prices[$product->getId()])) {
                    continue;
                }