/**
 * Widget helpers
 * @internal
 */
export declare const widgetHelpers: {
    downloadBlobAsFile(blob: Blob, filename: string): void;
    normalizeFileName(rawFileName: string): string;
    withBuiltInMenuItem(items: readonly import("../../../shared/types/menu-item").MenuItem[], builtInItem: import("../../../shared/types/menu-item").MenuItem): import("../../../shared/types/menu-item").MenuItem[];
    withMenuItemInHeaderConfig(menuItem: import("../../../shared/types/menu-item").MenuItem): (headerConfig: import("../../..").WidgetHeaderConfig) => import("../../..").WidgetHeaderConfig;
    withHeaderMenuItem(menuItem: import("../../../shared/types/menu-item").MenuItem): (widget: import("../components/widget").WidgetProps) => import("../components/widget").WidgetProps;
};