import { Types } from "@a2ui/lit/0.8";
import type { A2UIActionEvent } from "../types/index.js";
export interface UseA2UIReturn {
    /** Map of all surfaces */
    surfaces: ReadonlyMap<string, Types.Surface>;
    /** Get a specific surface by ID */
    getSurface: (surfaceId: string) => Types.Surface | undefined;
    /** Process incoming A2UI messages from the server */
    processMessages: (messages: Types.ServerToClientMessage[]) => void;
    /** Send an action event to the server */
    sendAction: (action: A2UIActionEvent) => void;
    /** Get the root component tree for a surface */
    getComponentTree: (surfaceId: string) => Types.AnyComponentNode | null;
    /** Clear all surfaces */
    clearSurfaces: () => void;
}
/**
 * Main hook for interacting with A2UI.
 * Provides access to surfaces, message processing, and action sending.
 *
 * @example
 * ```tsx
 * function MyComponent() {
 *   const { surfaces, processMessages, sendAction } = useA2UI();
 *
 *   // Process messages from server
 *   useEffect(() => {
 *     fetch('/api/a2ui').then(res => res.json()).then(processMessages);
 *   }, []);
 *
 *   // Render surfaces
 *   return <A2UIRenderer surfaceId="main" />;
 * }
 * ```
 */
export declare function useA2UI(): UseA2UIReturn;
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