import { OnInit, OnChanges, Renderer2, ElementRef } from '@angular/core';
import { Observable } from 'rxjs';
export declare class LoadWhenDirective implements OnInit, OnChanges {
    private renderer;
    private eleRef;
    bgiLoadWhen: Observable<any>;
    constructor(renderer: Renderer2, eleRef: ElementRef);
    ngOnInit(): void;
    ngOnChanges(): void;
    private startLoading;
    private stopLoading;
}