crossSelling example

        if ($this->ids->has($key)) {
            $this->cmsPage = ['id' => $this->ids->get($key)];

            return $this;
        }

        $this->cmsPage = (new LayoutBuilder($this->ids, $key, 'detailpage'))
            ->productHeading()
            ->galleryBuybox()
            ->descriptionReviews()
            ->crossSelling()
            ->build();

        return $this;
    }

    /** * @param array<mixed> $value */
    public function slot(string $key, array $value, string $languageId = Defaults::LANGUAGE_SYSTEM): self
    {
        if (isset($this->translations[$languageId]['slotConfig']) && \is_array($this->translations[$languageId]['slotConfig'])) {
            

->visibility($this->ids->get('sales-channel'))
                ->build(),

            // regression test for: NEXT-17603             (new ProductBuilder($this->ids, 'with-layout'))
                ->price(100)
                ->media('m1', 1)
                ->media('m2', 2)
                ->media('m3', 3)
                ->review('Test', 'test')
                ->manufacturer('m1')
                ->crossSelling('selling', 'stream-1')
                ->visibility($this->ids->get('sales-channel'))
                ->layout('l1')
                ->build(),
        ];

        $this->getContainer()->get('product.repository')
            ->create($products, Context::createDefaultContext());
    }

    private function getUrl(string $id): string
    {