import type { RoomState } from "./api.js";
/**
 * Watches a room until it is deleted server-side (update of `null`), the
 * signal aborts, or an unrecoverable error occurs. Resolves when watching ends.
 */
export declare function watchRoom(baseUrl: string, roomCode: string, onUpdate: (state: RoomState | null) => void, signal: AbortSignal): Promise<void>;