/**
 * Notification throttle — coalesces MCP resource-update notifications.
 *
 * Under high parallelism, many tasks complete/update simultaneously.
 * Instead of sending one notification per event, we batch them over
 * a configurable window and send at most one per window.
 */
export interface ThrottleOptions {
    /** Coalesce window in ms (default: 500) */
    intervalMs?: number;
    /** Callback to send the actual notification */
    send: () => Promise<void>;
}
export declare class NotificationThrottle {
    private readonly intervalMs;
    private readonly send;
    private timer;
    private pending;
    constructor(options: ThrottleOptions);
    /**
     * Request a notification. If one is already pending in the current
     * window, this is a no-op (coalesced). Otherwise, schedules delivery
     * at the end of the window.
     */
    notify(): void;
    /**
     * Flush any pending notification immediately.
     * Call this during shutdown to ensure final state is delivered.
     */
    flush(): Promise<void>;
    /**
     * Cancel any pending notification and stop the throttle.
     */
    dispose(): void;
}
//# sourceMappingURL=throttle.d.ts.map