declare class BreadcrumbNav extends HTMLElement {
    private ol;
    constructor();
    static get observedAttributes(): string[];
    connectedCallback(): void;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    render(): void;
    addEllipsis(ol: HTMLOListElement, breadcrumbData: {
        name: string;
        url: string;
        badgeNumber?: number;
    }[]): void;
}
export default BreadcrumbNav;