/**
 * Creates monotonically-increasing timestamps regardless of the precision and monoticity of the system clock.
 */
export default class Timestamp {
    private lastTime;
    private inSystemTimeBackoffPeriod;
    /**
     * Creates a new timestamp with the given characteristics.
     */
    getStamp(): number;
    /**
     * Ensures that the current stamp is at least as late as the given stamp,
     * used to ensure monotonic increases after synchronizing with other systems.
     */
    update(t: number): void;
    /**
     * Force the use of system time on the next call, even if a timer says we should back off.
     */
    useSystemTimeNext(): void;
}