/**
 *
 * @param high
 * @param low
 * @param close
 * @param kperiod
 * @param kslow
 * @param dperiod
 * @param size
 * @returns [stoch, stoch_ma]
 */
export declare function stoch(high: Array<number>, low: Array<number>, close: Array<number>, kperiod: number, kslow: number, dperiod: number, size?: number): Promise<number[][]>;