/**
 * Returns the default aggregator which rolls up non-group_by columns into a children array.
 */
export function defaultAggregator(config: any): {
    mapper: (row: any) => {};
    reducers: {
        field: any;
        formula: (x: any) => any;
    }[];
};
export function dataset(data: any, options?: {}): DataSet;
export class DataSet {
    constructor(data: any);
    set data(values: any[]);
    get data(): any[];
    set config(props: any);
    override(props: any): this;
    where(condition: any): this;
    apply(callback: any): this;
    sortBy(...fields: any[]): this;
    rename(how: any): this;
    drop(...fields: any[]): DataSet;
    fillNA(value: any): this;
    remove(): this;
    update(value: any): this;
    groupBy(...fields: any[]): this;
    alignBy(...fields: any[]): this;
    usingTemplate(template: any): this;
    summarize(from: any, fields: any): this;
    rollup(): DataSet;
    select(...cols: any[]): any;
    /**
     * Derive column definitions from the current data.
     *
     * Returns `{ name, type, scale, sortable, filterable, fields, formatter }` for each
     * column, plus any user-supplied properties from `options.enhancements`.
     *
     * @param {Object} [options]
     * @param {Array<Object>} [options.enhancements=[]] - Per-column overrides keyed by name.
     * @param {string} [options.language='en-US'] - Locale for formatters.
     * @param {string} [options.scanMode='fast'] - 'fast' or 'deep'.
     * @returns {Array<Object>}
     */
    columnDefs(options?: {
        enhancements?: Object[] | undefined;
        language?: string | undefined;
        scanMode?: string | undefined;
    }): Array<Object>;
    union(other: any): DataSet;
    minus(other: any): DataSet;
    intersect(other: any): DataSet;
    innerJoin(other: any, condition: any): DataSet;
    leftJoin(other: any, condition: any): DataSet;
    rightJoin(other: any, condition: any): DataSet;
    fullJoin(other: any, condition: any): DataSet;
    crossJoin(other: any): DataSet;
    semiJoin(other: any, condition: any): DataSet;
    antiJoin(other: any, condition: any): DataSet;
    nestedJoin(other: any, condition: any): DataSet;
    #private;
}