/**
 * Heikin-Ashi OHLC transform (Stage 2.20).
 */
export interface OhlcArrays {
    open: Float32Array | Float64Array;
    high: Float32Array | Float64Array;
    low: Float32Array | Float64Array;
    close: Float32Array | Float64Array;
}
export declare function computeHeikinAshi(ohlc: OhlcArrays): OhlcArrays;