import { FormatterWithPrecision, type TimeFrameFormatter } from '../../../../../core/types/formatter.js';
import { XYAccessorDataTypes } from '../../../../types/xy-chart.js';
export declare function useDotSeriesTooltipHeaderContent([v0, v1]: [v0: XYAccessorDataTypes, v1?: XYAccessorDataTypes], formatter?: FormatterWithPrecision | TimeFrameFormatter): {
    duration: string | undefined;
    text: string;
};