export declare enum TimeUnit {
    NS = 0,
    US = 1,
    MS = 2,
    S = 3
}
export declare class TimeUnitHelper {
    static getUnitStr: (unit: TimeUnit) => string;
    static getUnitDescription: (unit: TimeUnit) => string;
    static getFullDescription: (unit: TimeUnit, maxHeaderLen: number) => string;
    static chooseUnit(time: number): TimeUnit;
}