import { type PortWebSocketClass, type WebSocketClassOptions, type WebSocketConnection } from "../ws/client.js";
/**
 * Opens the transport of a socket through the ServiceWorker controlling this
 * page, for a page that has no adapter of its own: content a handler serves
 * under the same-origin dispatcher, or under a relay. The ServiceWorker
 * routes `url` like a fetch, and the handler accepts or refuses the upgrade.
 */
export declare function connectWebSocketThroughServiceWorker(url: string | URL, protocols?: string[], container?: ServiceWorkerContainer): Promise<WebSocketConnection>;
/**
 * A WHATWG `WebSocket` class over `connectWebSocketThroughServiceWorker`.
 * Install it where the page's code expects `WebSocket`, e.g.
 * `globalThis.WebSocket = serviceWorkerWebSocketClass()` in content that only
 * talks to its own handlers.
 */
export declare function serviceWorkerWebSocketClass(options?: WebSocketClassOptions): PortWebSocketClass;
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