import { FunctionComponent } from 'react';
import { DatumByKey } from '../XYChart/types';
import { ChartData } from '../types';
declare type FunnelChartTooltipProps = {
    heading: string;
    datum: DatumByKey;
    chartData: ChartData;
    tooltipNearestDatum: DatumByKey;
    formatValue: ((value: any) => any) | undefined;
};
export declare const FunnelChartTooltip: FunctionComponent<FunnelChartTooltipProps>;
export {};
