import type { HighLowCloseVolume } from '../../base/Candle.type.js';
import { IndicatorSeries } from '../../base/Indicator.js';
type PVIState = {
    candles: HighLowCloseVolume[];
    pvi: number;
};
export declare class PVI extends IndicatorSeries<HighLowCloseVolume, PVIState> {
    protected state: PVIState;
    getRequiredInputs(): number;
    update(candle: HighLowCloseVolume, replace: boolean): number;
}
export {};