import { IndicatorSeries } from '../../base/Indicator.js';
import type { HighLow } from '../../base/Candle.type.js';
export type SwingLowConfig = {
    lookback: number;
};
export declare class SwingLow extends IndicatorSeries<HighLow> {
    #private;
    readonly inputShape: "high-low";
    constructor(config: SwingLowConfig);
    getRequiredInputs(): number;
    update(candle: HighLow<number>, replace: boolean): number | null;
}