import type { WidgetHeaderConfig } from '../../../domains/widgets/shared/widget-header/types.js';
export type UseWithCsvDownloadMenuParams = {
    /** Base header config. */
    baseHeaderConfig: WidgetHeaderConfig;
    /** Whether the "Download CSV" menu item is enabled. */
    enabled: boolean;
    /** Triggers CSV query execution and browser download. */
    onClick: () => void;
};
/**
 * Appends a "Download > CSV File" item to the widget header menu when enabled.
 *
 * If a "Download" group already exists in the menu, the "CSV File" item is added to its `items`.
 * Otherwise a new "Download" group containing "CSV File" is appended.
 *
 * @param params.baseHeaderConfig - Base header config.
 * @param params.enabled - Whether the "Download CSV" menu item is enabled.
 * @param params.onClick - Click handler for the "CSV File" leaf item.
 * @returns Header config to pass to {@link WidgetContainer}
 * @internal
 */
export declare function useWithCsvDownloadMenuItem({ baseHeaderConfig, enabled, onClick, }: UseWithCsvDownloadMenuParams): WidgetHeaderConfig;