import type { Chart, ChartType, TooltipModel } from 'chart.js';
import type { AnyObject } from 'chart.js/types/basic';
import { TooltipOptions } from './types';
export declare const externalTooltipHandler: (context: {
    chart: Chart;
    tooltip: TooltipModel<ChartType>;
}, options?: TooltipOptions & AnyObject) => void;