import { Logger } from './contracts';
import { ILogger } from '../browser-agent/lib/logger/ilogger';
export declare abstract class AgentTime {
    protected static _instance: AgentTime;
    static DEFAULT_SYNC_INTERVAL_SEC: number;
    static DEFAULT_SYNC_INTERVAL: number;
    static DEFAULT_TIMEOUT: number;
    protected readonly logger: Logger | ILogger;
    private readonly MIN_SYNC_INTERVAL;
    private readonly syncIntervalSec;
    private timeSyncOffset;
    private intervalStarted;
    protected constructor(syncIntervalSec: number, logger: Logger | ILogger);
    static getCreateAgentTimeSynchronizer: (syncIntervalSec: number, logger: Logger | ILogger, ...args: unknown[]) => AgentTime;
    static getOffset(): number;
    initiateClockSync(): Promise<void>;
    private syncTime;
    private startSynchronization;
    protected abstract getSynchronizationTime(): Promise<{
        offset: number;
    }>;
}