import { EventEmitter } from '@angular/core';
import '@arclux/arc-ui/scroll-spy';
import * as i0 from "@angular/core";
export declare class ScrollSpy {
    private readonly _el;
    set active(value: string);
    get active(): string;
    set offset(value: number);
    get offset(): number;
    set progress(value: 'none' | 'ring' | 'read' | 'both');
    get progress(): 'none' | 'ring' | 'read' | 'both';
    activeChange: EventEmitter<string>;
    _onArcChange(event: CustomEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ScrollSpy, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<ScrollSpy, "arc-scroll-spy", never, { "active": { "alias": "active"; "required": false; }; "offset": { "alias": "offset"; "required": false; }; "progress": { "alias": "progress"; "required": false; }; }, { "activeChange": "activeChange"; }, never, ["*"], true, never>;
}