import * as i0 from "@angular/core";
export declare class SessionStorageService {
    private readonly sessionStorageEventsService;
    exist(key: string): boolean;
    get(key: string): any;
    post(key: string, data: any): void;
    contains(key: string, data: any): boolean;
    delete(key: string): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<SessionStorageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SessionStorageService>;
}