import { TechnicalIndicator } from './Indicator.js';
export type PeriodResult = {
    highest: number;
    lowest: number;
};
export declare class Period extends TechnicalIndicator<PeriodResult, number> {
    #private;
    values: number[];
    get highest(): number | undefined;
    get lowest(): number | undefined;
    readonly interval: number;
    constructor(interval: number);
    getRequiredInputs(): number;
    update(value: number, replace: boolean): {
        highest: number;
        lowest: number;
    } | null;
}