/**
 * Cumulative sum change point detection
 */
export default class CumSum {
    _method: string;
    /**
     * Initialize model.
     * @param {number[]} datas Training data
     */
    init(datas: number[]): void;
    _x: number[];
    _anom: any[];
    /**
     * Fit model once.
     */
    fit(): void;
    /**
     * Returns predicted values.
     * @returns {boolean[]} Predicted values
     */
    predict(): boolean[];
}