import { IndicatorSeries } from '../../base/Indicator.js';
import type { HighLow } from '../../base/Candle.type.js';
export type ZigZagConfig = {
    deviation: number;
};
type ZigZagState = {
    highestExtreme: number | null;
    isUp: boolean;
    lastCandleReversedTrend: boolean;
    lowestExtreme: number | null;
};
export declare class ZigZag extends IndicatorSeries<HighLow, ZigZagState> {
    #private;
    protected state: ZigZagState;
    constructor(config: ZigZagConfig);
    getRequiredInputs(): number;
    update(candle: HighLow<number>, replace: boolean): number | null;
}
export {};