import { PlainTimeInput, PlainTime } from './plain-time.js';
import { STRING_FORMAT } from './constants.js';
import { PlainTimeObject } from './plain-time-object.type.js';
export interface PlainTimeFn {
    (): PlainTime;
    (arg: null): null;
    (arg: undefined): PlainTime;
    (arg: number): PlainTime;
    (arg: string): PlainTime;
    (arg: PlainTime): PlainTime;
    (arg: PlainTimeObject): PlainTime;
    (arg: Date): PlainTime;
    (arg: PlainTimeInput): PlainTime;
    (arg: PlainTimeInput | null): PlainTime | null;
    (arg?: PlainTimeInput | null): PlainTime | null;
    isValidTimeString(value?: string | null): boolean;
    max(...times: PlainTimeInput[]): PlainTime;
    min(...times: PlainTimeInput[]): PlainTime;
    STRING_FORMAT: typeof STRING_FORMAT;
}
export declare const plainTime: PlainTimeFn;