import { SessionHistoryToken, SessionService as ServiceBase } from "@cygnus-reach/session";
import * as i0 from "@angular/core";
export declare class SessionService<T> extends ServiceBase<T> {
    constructor(historyService?: SessionHistoryToken<T>);
    static ɵfac: i0.ɵɵFactoryDeclaration<SessionService<any>, [{ optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SessionService<any>>;
}