import * as React from 'react';
import { IgrRingSeriesBase } from './igr-ring-series-base';
import { IChartTooltipProps } from "igniteui-react-core";
export declare class IgrDoughnutChartDefaultTooltips {
    doughnutSliceTooltip: React.FunctionComponent<IChartTooltipProps>;
    constructor();
    ensureDefaultTooltip(series: IgrRingSeriesBase): void;
    static register(): void;
}