import { EmbeddedViewRef, TemplateRef, ApplicationRef } from '@angular/core';
export declare class PortalComponent {
    private appRef;
    viewRef: EmbeddedViewRef<any>;
    portalContainer: HTMLElement;
    templateRef: TemplateRef<any>;
    constructor(appRef: ApplicationRef);
    addContent(): void;
    open(): void;
    close(): void;
}