import { DownloadItem } from '../actions/download';
import { SpreadWidgetData } from './types';
/**
 * Download menu items for the Spread widget. Always includes a CSV item
 * with `series, prefix, min, max, suffix, note` columns (one row per
 * entry). When `getCaptureEl` is supplied, prepends a PNG item that
 * rasterises the captured element via `html2canvas`.
 */
export declare function createSpreadDownloadConfig(args: {
    filename: string;
    getData: () => SpreadWidgetData;
    getCaptureEl?: () => HTMLElement | null;
    pngPixelRatio?: number;
    pngBackgroundColor?: string | null;
}): DownloadItem[];