import { ListSortDirection } from "igniteui-react-core";
import { IgrChartSortDescription } from "./igr-chart-sort-description";
import { ChartGroupDescription } from "./ChartGroupDescription";
/**
 * Represents an element in the current grouping applied to a data source or provider. Changes to this object are not observed or expected after it is initially assigned to a collection.
*/
export declare class IgrChartGroupDescription extends IgrChartSortDescription {
    protected createImplementation(): ChartGroupDescription;
    /**
     * @hidden
     */
    get i(): ChartGroupDescription;
    constructor(field?: string, sortDirection?: ListSortDirection);
}