import type { HighLowCloseVolume } from '../../base/Candle.type.js';
import { IndicatorSeries } from '../../base/Indicator.js';
type NVIState = {
    nvi: number;
    previousCandle: HighLowCloseVolume | null;
};
export declare class NVI extends IndicatorSeries<HighLowCloseVolume, NVIState> {
    readonly inputShape: "high-low-close-volume";
    protected state: NVIState;
    getRequiredInputs(): number;
    update(candle: HighLowCloseVolume, replace: boolean): number;
}
export {};