import type { WidgetHeaderConfig } from '../../../../domains/widgets/shared/widget-header/types.js';
import type { ChartWidgetProps } from './types.js';
export type UseChartWidgetCsvDownloadParams = Pick<ChartWidgetProps, 'title' | 'dataOptions' | 'chartType' | 'filters' | 'highlights' | 'config' | 'dataSource'> & {
    /** Base header config */
    baseHeaderConfig: WidgetHeaderConfig;
};
export type UseChartWidgetCsvDownloadResult = {
    headerConfig: WidgetHeaderConfig;
};
/**
 * Enhances a chart widget's header with CSV download capabilities:
 * - Adds the "Download > CSV File" header menu item.
 * - Executes the CSV query and downloads the result as a CSV file.
 *
 * @param props - Chart widget props and base header config
 * @returns Header config for {@link WidgetContainer}
 */
export declare function useChartWidgetCsvDownload(props: UseChartWidgetCsvDownloadParams): UseChartWidgetCsvDownloadResult;