import { Synchronizer } from "./Synchronizer";
import { Scheduler } from "../scheduler/Scheduler";
import { CompositeSynchronizer } from "./CompositeSynchronizer";
export declare class PollingSynchronizer implements Synchronizer {
    private readonly delegate;
    private readonly scheduler;
    private readonly intervalMillis;
    private pollingJob;
    constructor(delegate: CompositeSynchronizer, scheduler: Scheduler, intervalMillis: number);
    sync(): Promise<void>;
    start(): void;
    stop(): void;
    close(): Promise<void>;
}