export declare class HelperService {
    newItemButtonEnabled: boolean;
    containerCssClassEnabled: boolean;
    private _containerCssClassEnabled;
    private _newItemButtonEnabled;
    scrollToTop(): void;
    scrollDownToElement(element: any): void;
    scrollToElement(element: any): void;
    normalizeUrl(text: any): any;
    removeDiacritics(str: any): any;
}