import type { XYChartAxisInternal } from '../types/xy-chart-internals.js';
import type { XYChartXAxisPosition, XYChartYAxisPosition } from '../types/xy-chart.js';
export type XYChartAxisPosition = XYChartXAxisPosition | XYChartYAxisPosition | 'top' | 'bottom' | 'left' | 'right';
export type FormatCategory = (axis: XYChartAxisInternal | XYChartAxisPosition | undefined, raw: string | undefined) => string | undefined;
/**
 * Returns a stable function that formats a raw category string using the
 * categorical axis formatter. The axis can be addressed by position (`'top'`)
 * or by passing the internal axis config directly. Falls back to the raw value
 * when the axis isn't categorical, has no formatter, or the value is missing.
 *
 * @internal
 */
export declare const useFormatCategory: () => FormatCategory;