import { ElementRef } from '@angular/core';
import * as i0 from "@angular/core";
export declare class AutoScrollDirective {
    el: ElementRef;
    elementId: string | undefined;
    constructor(el: ElementRef);
    easeInOutQuad(t: number, b: number, c: number, d: number): number;
    easeInCubic(t: number, b: number, c: number, d: number): number;
    inOutQuintic(t: number, b: number, c: number, d: number): number;
    requestAnimFrame: ((callback: FrameRequestCallback) => number) & typeof requestAnimationFrame;
    scrollTo(to: any, callback: any, duration: any): void;
    onMouseEnter(): void;
    onMouseLeave(): void;
    highlight(color: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<AutoScrollDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<AutoScrollDirective, "[autoScroll]", never, { "elementId": "autoScroll"; }, {}, never>;
}