ProductCrossSellingCriteriaLoadEvent example

private function loadCrossSellings(string $productId, SalesChannelContext $context): ProductCrossSellingCollection
    {
        $criteria = new Criteria();
        $criteria->setTitle('product-cross-selling-route');
        $criteria
            ->addAssociation('assignedProducts')
            ->addFilter(new EqualsFilter('product.id', $productId))
            ->addFilter(new EqualsFilter('active', 1))
            ->addSorting(new FieldSorting('position', FieldSorting::ASCENDING));

        $this->eventDispatcher->dispatch(
            new ProductCrossSellingCriteriaLoadEvent($criteria, $context)
        );

        /** @var ProductCrossSellingCollection $crossSellings */
        $crossSellings = $this->crossSellingRepository
            ->search($criteria, $context->getContext())
            ->getEntities();

        return $crossSellings;
    }

    private function loadByStream(ProductCrossSellingEntity $crossSelling, SalesChannelContext $context, Criteria $criteria): CrossSellingElement
    {