import { PeriodTime } from "../interfaces/period-time";
import { Value } from "./value";
export declare class PeriodValue extends Value<PeriodTime> {
    type: string;
    private value;
    private tz;
    getValue(): PeriodTime;
    setValue(value: string): this;
    convertFromTZ(tz: string): this;
    toString(): string;
}