import { HistogramConfig, HistogramWidgetConfig } from './types';
import { DownloadItem } from '../actions';
import { ConfigProps } from '../loader/types';
export interface HistogramDownloadConfigProps extends ConfigProps {
    ticks: number[];
    labelFormatter?: (value: string | number) => string | number;
}
export declare function histogramDataToCSV(data: number[][], ticks: number[], labelFormatter?: (value: string | number) => string | number): string[][];
export declare function histogramDownloadConfig({ refUI, ticks, labelFormatter, }: HistogramDownloadConfigProps): DownloadItem<number[][]>[];
/**
 * Generates ECharts configuration for distribution histogram widgets with
 * adjacent bars (minimal gap) and axis formatting styled with the CARTO theme.
 *
 * Accepts raw `number[][]` data and `ticks` boundaries. The ticks and
 * `labelFormatter` are used to create the x-axis category labels; the raw
 * numeric data is embedded directly in each series.
 *
 * @param props - Histogram configuration including raw data, ticks, and theme.
 * @returns Widget config with ECharts option object.
 */
export declare function histogramConfig(props: HistogramConfig): HistogramWidgetConfig;