/**
 * WidgetSlot — renders inline widgets (e.g. collect-email, escalate-to-human)
 * for a message via the ChatWidgetRegistry. Reads the same metadata sources
 * the previous string-builder did, but the registry now returns Preact
 * VNodes so widgets compose naturally inside the message list.
 *
 * Submission UI is metadata-driven: once a widget is `submitted: true`
 * (set by the controller after a successful `onAction`), this component
 * renders a type-specific confirmation instead of the input form.
 */
import type { JSX } from "preact";
import type { ChatMessage } from "../../../utils/globals";
import type { ChatController } from "../controller/chat-controller";
interface WidgetSlotProps {
    message: ChatMessage;
    controller: ChatController;
}
declare function WidgetSlotImpl({ message, controller, }: WidgetSlotProps): JSX.Element | null;
export declare const WidgetSlot: typeof WidgetSlotImpl;
export {};