import { Observable } from 'rxjs';
import { JwtHelperService } from '@auth0/angular-jwt';
import * as i0 from "@angular/core";
export declare abstract class IAuthenticationService {
    abstract isAuthentication(): boolean;
    abstract getPermissionToken(): string | null | Promise<string>;
    abstract setPermissionToken(token: string): void;
    abstract getToken(): string | Promise<string>;
    abstract setToken(token: string): void;
    abstract signOut(): Observable<any>;
    abstract removePermissionToken(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<IAuthenticationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<IAuthenticationService>;
}
export declare class AuthenticationService extends IAuthenticationService {
    private jwtHelperService;
    constructor(jwtHelperService: JwtHelperService);
    isAuthentication(): boolean;
    getToken(): string | Promise<string>;
    setToken(token: string): void;
    getPermissionToken(): string | null | Promise<string>;
    setPermissionToken(token: string): void;
    removePermissionToken(): void;
    /**
     * Sign out
     */
    signOut(): Observable<any>;
    static ɵfac: i0.ɵɵFactoryDeclaration<AuthenticationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<AuthenticationService>;
}