export declare class Session {
    static isActive(): boolean;
    static setSessionLastActiveTimestamp(): void;
    static clearSessionLastActiveTimestamp(): void;
    /**
     * Sets the session user id. If the user id is already set and not of the
     * same value, the active session will be cleared.
     */
    static setSessionUserId(userId: string): void;
    static clearSession(): void;
}
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