import type { HookFunction, HookRegisterOptions } from "./types";
/**
 * Register a session-scoped hook. The callback is serialized and sent to the host (Render);
 * once registered, it runs in the host context even when the extension iframe is not on the current page.
 * The callback must be self-contained (only use event, hostCommands, callCommand).
 * Uses options.hookId as a stable dedup key: re-registering with the same hookId replaces the previous hook.
 */
declare function register(topic: string, callback: HookFunction, options: HookRegisterOptions): string;
/**
 * Unregister a hook by ID. Sends a message to the host to remove the hook.
 */
declare function unregister(hookId: string): void;
export declare const hooks: {
    register: typeof register;
    unregister: typeof unregister;
};
export type { HookFunction, HookRegisterOptions } from "./types";