import { ElementRef, Renderer2, OnInit } from '@angular/core';
import { ScrollSpyService } from './scroll-spy.service';
import * as i0 from "@angular/core";
export declare class SpyOnDirective implements OnInit {
    private el;
    private renderer;
    private spyService;
    activeClass: string;
    spyOn: string;
    private isActive;
    constructor(el: ElementRef, renderer: Renderer2, spyService: ScrollSpyService);
    ngOnInit(): void;
    private get htmlElement();
    setActive(): void;
    setInActive(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SpyOnDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SpyOnDirective, "[spyOn]", never, { "activeClass": "activeClass"; "spyOn": "spyOn"; }, {}, never, never, false>;
}