import { ElementRef, OnInit } from '@angular/core';
export declare class ParallaxScrollDirective implements OnInit {
    private platformId;
    private config;
    private axis;
    private speed;
    private initialValue;
    private maxValue;
    private minValue;
    private cssUnit;
    private scrollerId;
    private parallaxElement;
    private parallaxPivot;
    private cssProperty;
    private scrollElement;
    private hostElement;
    private backupElement;
    private testBrowser;
    constructor(element: ElementRef, platformId: Object);
    ngOnInit(): void;
    private onScroll;
}