import { AfterViewInit, ElementRef, OnDestroy } from '@angular/core';
import { NgmMasonryComponent } from './ngm-masonry.component';
export declare class NgmMasonryDirective implements OnDestroy, AfterViewInit {
    private _element;
    private _parent;
    private platformId;
    private _observer;
    constructor(_element: ElementRef, _parent: NgmMasonryComponent, platformId: any);
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    /** When HTML in brick changes dynamically, observe that and change layout */
    private watchForHtmlChanges;
}