import { OnDestroy, TemplateRef, ViewContainerRef } from '@angular/core';
import { NgxAuthenticationAbstractService } from '../../abstracts';
import * as i0 from "@angular/core";
/**
 *  * A directive that will render a part of the template based on whether the user is authenticated.
 *
 * Based upon `*ngIf`. See https://github.com/angular/angular/blob/master/packages/common/src/directives/ng_if.ts
 */
export declare class NgxIsAuthenticatedDirective implements OnDestroy {
    private readonly authenticationService;
    private viewContainer;
    /**
     * The destroyed state of the directive
     */
    private destroyed$;
    /**
     * The needed templateRefs
     */
    private thenTemplateRef;
    private thenViewRef;
    private elseTemplateRef;
    private elseViewRef;
    /**
     * Whether the user has to be authenticated
     */
    private shouldBeAuthenticated;
    constructor(authenticationService: NgxAuthenticationAbstractService, templateRef: TemplateRef<any>, viewContainer: ViewContainerRef);
    /**
     * Whether the user has to be authenticated
     */
    set ngxIsAuthenticated(authenticated: boolean);
    /**
     * The else template in case the condition is not matched
     */
    set ngxIsAuthenticatedElse(ngTemplate: TemplateRef<any>);
    ngOnDestroy(): void;
    private updateView;
    /**
     * Dispose the current subscription
     */
    private dispose;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxIsAuthenticatedDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NgxIsAuthenticatedDirective, "[ngxIsAuthenticated]", never, { "ngxIsAuthenticated": { "alias": "ngxIsAuthenticated"; "required": false; }; "ngxIsAuthenticatedElse": { "alias": "ngxIsAuthenticatedElse"; "required": false; }; }, {}, never, never, true, never>;
}