export declare class CmsUtilsService {
    static getUniqueString(): string;
    static closestByTagName(element: HTMLElement, tagName: string): HTMLElement;
    static closestByClassName(element: HTMLElement, className: string): HTMLElement;
    static randomStr(len: any, arr: any): string;
    static getSortOrder(prevItem: any, nextItem: any): any;
}