/**
 * Built-in escalate_to_human widget: shows a "Connect with a human" button.
 * UI state is metadata-driven — WidgetSlot renders the confirmation once
 * the controller flips `submitted: true` in the message's metadata.
 */
import type { ChatWidgetDefinition } from "../widget-registry";
export declare const escalateToHumanWidget: ChatWidgetDefinition;