import type { ChartData } from '../../core/types/chart-data.js';
import type { ChartUnit } from '../../core/types/chart-unit.js';
import type { PieChartData } from '../types/pie-chart.config.js';
/**
 * Input accepted by {@link normalizePieData}: either the unified `ChartData`
 * format (paired with `labelAccessor`/`valueAccessor` and a root-level `unit`)
 * or the legacy `PieChartData` shape.
 * @internal
 */
export interface NormalizePieDataInput {
    data: ChartData | PieChartData;
    labelAccessor?: string;
    valueAccessor?: string;
    unit?: ChartUnit;
}
/**
 * Normalizes the public PieChart/DonutChart data props into the internal
 * `PieChartData` (`{ slices, unit }`) shape consumed by the rendering pipeline.
 *
 * When `labelAccessor`/`valueAccessor` are provided, the data is treated as the
 * unified `ChartData` array and each datapoint is mapped to a slice by resolving
 * the accessor strings (dot-notation supported). Otherwise the legacy
 * `PieChartData` is returned unchanged.
 *
 * @param input - the data-related PieChart/DonutChart props
 * @returns the internal `PieChartData` shape
 * @internal
 */
export declare function normalizePieData(input: NormalizePieDataInput): PieChartData;