declare const SESSION_TIMEOUT: number;
declare class Session {
    private id;
    private startTime;
    private lastActiveTime;
    private accumulatedTime;
    private active;
    private visible;
    private focused;
    constructor();
    getId: () => string;
    isActive: () => boolean;
    isVisible: () => boolean;
    isFocused: () => boolean;
    isExpired: () => boolean;
    updateLastActiveTime: () => void;
    updateActive: (active: boolean) => void;
    refresh: () => void;
    updateAccumulator: () => void;
    focus: () => void;
    blur: () => void;
    pageshow: () => void;
    pagehide: () => void;
    visibilitychange: (state: DocumentVisibilityState) => void;
    flush: () => number;
}
declare const session: Session;

export { SESSION_TIMEOUT, session };