export type SessionData = {
    sessionSecureID: string;
    projectID: number;
    payloadID: number;
    sessionStartTime?: number;
    lastPushTime?: number;
    userIdentifier?: string;
    userObject?: Object;
};
export declare const getSessionSecureID: () => string;
export declare const setSessionSecureID: (secureID: string) => void;
export declare const getPreviousSessionData: (sessionID?: string) => SessionData | undefined;
export declare const setSessionData: (sessionData?: SessionData) => void;
