/** Contract for a component that can process a batch of queued items. */
export interface BatchProcessor {
    processBatch(): Promise<number>;
}
/** Configuration for the daemon polling worker. */
export interface DaemonWorkerOptions {
    queueProcessor: BatchProcessor;
    pollIntervalMs: number;
}
/** Polling worker that periodically processes queued observations. */
export declare class DaemonWorker {
    private queueProcessor;
    private pollIntervalMs;
    private timer;
    private lastActiveAt;
    private processing;
    constructor(options: DaemonWorkerOptions);
    start(): void;
    stop(): void;
    get isRunning(): boolean;
    get idleMs(): number;
    get shouldAutoExit(): boolean;
    handleMessage(message: unknown): void;
}
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