import { OnChanges, OnDestroy, OnInit, SimpleChanges, TemplateRef } from '@angular/core';
import { PortalHubService } from './portal-hub.service';
import * as i0 from "@angular/core";
export declare class PortalSourceDirective implements OnInit, OnDestroy, OnChanges {
    private templateRef;
    private hub;
    key: string;
    constructor(templateRef: TemplateRef<any>, hub: PortalHubService);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    ngOnInit(): void;
    private registerTemplate;
    private unregisterTemplate;
    static ɵfac: i0.ɵɵFactoryDeclaration<PortalSourceDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<PortalSourceDirective, "[dynamicPortalSource]", never, { "key": { "alias": "dynamicPortalSource"; "required": false; }; }, {}, never, never, false, never>;
}