addSliderItem example

/** @var ProductMediaCollection $sliderItems */
                    $sliderItems = new ProductMediaCollection(array_merge(
                        [$productEntity->getCoverId() => $productEntity->getCover()],
                        $sliderItems->getElements()
                    ));
                }
            }

            foreach ($sliderItems->getMedia() as $media) {
                $imageSliderItem = new ImageSliderItemStruct();
                $imageSliderItem->setMedia($media);
                $imageSlider->addSliderItem($imageSliderItem);
            }
        }
    }

    protected function sortItemsByPosition(ProductMediaCollection $sliderItems): void
    {
        if (!$sliderItems->first() || !$sliderItems->first()->has('position')) {
            return;
        }

        $sliderItems->sort(static fn (ProductMediaEntity $a, ProductMediaEntity $b) => $a->get('position') - $b->get('position'));
    }