import type { ConvertibleUnit, FormatOptions, Unit } from '@dynatrace-sdk/units';
import type { ChartUnit } from '../../core/types/chart-unit.js';
import type { Formatter } from '../../core/types/formatter.js';
export declare function useSankeyFormatter(formatter?: Formatter | FormatOptions<Unit, ConvertibleUnit>, unit?: ChartUnit): (value: number) => string;
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