import { ElementRef, NgZone } from '@angular/core';
import * as i0 from "@angular/core";
export interface MorphDomOptions {
    getNodeKey?: (node: Node) => any;
    onBeforeNodeAdded?: (node: Node) => Node;
    onNodeAdded?: (node: Node) => Node;
    onBeforeElUpdated?: (fromEl: HTMLElement, toEl: HTMLElement) => boolean;
    onElUpdated?: (el: HTMLElement) => void;
    onBeforeNodeDiscarded?: (node: Node) => boolean;
    onNodeDiscarded?: (node: Node) => void;
    onBeforeElChildrenUpdated?: (fromEl: HTMLElement, toEl: HTMLElement) => boolean;
    childrenOnly?: boolean;
}
export declare class MorphdomService {
    private ngZone;
    constructor(ngZone: NgZone);
    morphElement(element: ElementRef<Element>, newElementContent: string, options: MorphDomOptions): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MorphdomService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<MorphdomService>;
}