import { AfterViewInit, ElementRef, OnChanges, Renderer2, SimpleChanges } from '@angular/core';
export declare class VbrImagePreloaderDirective implements AfterViewInit, OnChanges {
    private el;
    private renderer;
    private readonly defaultPreloader;
    vbrImagePreloader: string;
    src: string;
    constructor(el: ElementRef, renderer: Renderer2);
    ngAfterViewInit(): void;
    ngOnChanges(changes: SimpleChanges): any;
    private setSrc;
}