export type SessionActivitySource = 'focus' | 'keydown' | 'mousemove' | 'route';
export type MarkSessionActivity = (source: SessionActivitySource) => boolean;
export type SessionActivityTracker = {
    record: MarkSessionActivity;
    reset: () => void;
};
export declare const sessionActivityThrottleMs = 5000;
/**
 * Coalesces browser and route activity into periodic session activity.
 *
 * The tracker reports whether the activity was accepted. Activity inside the throttle
 * interval is ignored and does not call `onActivity`.
 */
export declare function createSessionActivityTracker({ now, onActivity, throttleMs, }: {
    now?: () => number;
    onActivity: (source: SessionActivitySource, occurredAt: number) => void;
    throttleMs?: number;
}): SessionActivityTracker;
export declare function registerSessionActivityListeners({ markActivity, window, }: {
    markActivity: MarkSessionActivity;
    window: Window;
}): () => void;
//# sourceMappingURL=sessionActivity.d.ts.map