/**
 * Request-ID generation.
 *
 * Each factory has its own independent counter with a prefix
 * (e.g. "h:" for host, "p:" for product) so IDs from both sides
 * never collide on the shared postMessage channel.
 */
export declare function createIdFactory(prefix: string): () => string;
//# sourceMappingURL=idFactory.d.ts.map