import { ClientState, FullConfig } from '../model/config';
import { Identification } from '../model/identification';
import { Session } from '../model/session';
export declare const IDENTIFICATION_KEY = "bigdelta_analytics_identification";
export declare const TRACKING_ENABLED_STATE_KEY = "bigdelta_analytics_tracking_enabled";
export declare const TRACK_IP_AND_GEOLOCATION_STATE_KEY = "bigdelta_analytics_track_ip_and_geolocation";
export declare const SESSION_KEY = "bigdelta_analytics_session";
export declare class PersistentStorage {
    private config;
    constructor(config: FullConfig);
    saveIdentification(identification: Identification): void;
    loadIdentification(): Identification;
    saveClientState(clientState: ClientState): void;
    loadClientState(): {
        trackingEnabled: boolean;
        trackIpAndGeolocation: boolean;
    };
    saveSession(session: Session): void;
    loadSession(): Session;
    private get;
    private persist;
    private remove;
    private getCookie;
    private setCookie;
    private removeCookie;
    private getFromLocalStorage;
    private setInLocalStorage;
    private removeFromLocalStorage;
}