export type Bar = {
    time: number;
    open: number;
    high: number;
    low: number;
    close: number;
    volume?: number;
};
export type MacdResult = {
    macd: number;
    signalLine: number;
    histogram: number;
};
export type MaCrossSignal = "neutral" | "bullish" | "bearish" | "bullish-cross" | "bearish-cross";
export type MaCrossResult = {
    fast: number;
    slow: number;
    signal: MaCrossSignal;
};
export type BollingerResult = {
    middle: number;
    upper: number;
    lower: number;
};
export type PriceChangeResult = {
    previous: number;
    percent: number;
};
export declare function computeRsi(values: number[], period?: number): number | null;
export declare function computeSmaSeries(values: number[], period: number): number[];
export declare function computeSma(values: number[], period: number): number | null;
export declare function computeEmaSeries(values: number[], period: number): number[];
export declare function computeEma(values: number[], period: number): number | null;
export declare function computeMacd(values: number[]): MacdResult | null;
export declare function computeMaCross(values: number[], type: "sma" | "ema", fastPeriod: number, slowPeriod: number): MaCrossResult | null;
export declare function computeBollinger(values: number[], period?: number, multiplier?: number): BollingerResult | null;
export declare function computePriceChange(values: number[], lookback?: number): PriceChangeResult | null;
export declare function computeAtr(bars: Bar[], period?: number): number | null;