async getImageItem(itemPosition) {
        const items = await $(this.rootElement).$$('li[role="tabpanel"]');
        if (items[itemPosition]) {
            return new PageCarouselImage(
                `${this.rootElement} li[role="tabpanel"]:nth-child(${itemPosition + 1})`,
            );
        }
        return null;
    }
Returns a new CarouselImage page object of the element in item position.
@method
@param {number} itemPosition - The base 0 index of the CarouselImage item.