import { OnDestroy, OnInit, TemplateRef } from '@angular/core';
import { OverlayService } from './overlay.service';
import * as i0 from "@angular/core";
export declare class OverlayDirective implements OnInit, OnDestroy {
    private readonly template;
    private readonly overlayService;
    constructor(template: TemplateRef<void>, overlayService: OverlayService);
    private key?;
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<OverlayDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<OverlayDirective, "[riv-overlay]", never, {}, {}, never, never, false, never>;
}