import { AfterViewInit, ApplicationRef, ComponentFactoryResolver, Injector, OnDestroy } from '@angular/core';
import * as i0 from "@angular/core";
export declare class Portal implements AfterViewInit, OnDestroy {
    private componentFactoryResolver;
    private injector;
    private appRef;
    private platform;
    selector: string;
    in: string;
    mutationOptions: MutationObserverInit;
    hidden: boolean;
    private portal;
    private host;
    private destroy;
    constructor(componentFactoryResolver: ComponentFactoryResolver, injector: Injector, appRef: ApplicationRef, platform: Object);
    ngAfterViewInit(): void;
    attach(element: Element | null): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<Portal, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<Portal, "portal", never, { "selector": { "alias": "selector"; "required": false; }; "in": { "alias": "in"; "required": false; }; "mutationOptions": { "alias": "mutationOptions"; "required": false; }; }, {}, never, ["*"], true, never>;
}