import type { HighLowClose } from '../../base/Candle.type.js';
import { ThresholdCrossSeries } from '../../base/Indicator.js';
import type { SignalThresholds } from '../../base/SignalThresholds.type.js';
export type ProjectionOscillatorConfig = {
    interval?: number;
    signalThresholds?: SignalThresholds;
};
export declare class ProjectionOscillator extends ThresholdCrossSeries<HighLowClose<number>> {
    #private;
    readonly interval: number;
    constructor({ interval, signalThresholds: { overbought, oversold }, }?: ProjectionOscillatorConfig);
    getRequiredInputs(): number;
    update(candle: HighLowClose<number>, replace: boolean): number | null;
}