import type { DEMA } from '../../trend/DEMA/DEMA.js';
import type { EMA } from '../../trend/EMA/EMA.js';
import { TechnicalIndicator, TradingSignal } from '../../base/Indicator.js';
export type MACDResult = {
    histogram: number;
    macd: number;
    signal: number;
};
export declare class MACD extends TechnicalIndicator<MACDResult, number> {
    #private;
    readonly prices: number[];
    readonly short: EMA | DEMA;
    readonly long: EMA | DEMA;
    readonly signal: EMA | DEMA;
    constructor(short: EMA | DEMA, long: EMA | DEMA, signal: EMA | DEMA);
    getRequiredInputs(): number;
    update(price: number, replace: boolean): {
        histogram: number;
        macd: number;
        signal: number;
    } | null;
    protected calculateSignal(result?: MACDResult | null | undefined): "BEARISH" | "BULLISH" | "UNKNOWN";
    getSignal(): {
        state: (typeof TradingSignal)[keyof typeof TradingSignal];
        hasChanged: boolean;
    };
}