import * as dntShim from "../../../../_dnt.shims.js";
import type { WebSocketUpgradeOptions, WebSocketUpgradeResult } from "./types.js";
export declare function upgradeWebSocket(request: Request, options?: WebSocketUpgradeOptions): WebSocketUpgradeResult;
export declare function isWebSocketUpgrade(request: Request): boolean;
/**
 * Resolve and validate Deno's native WebSocket options against the actual
 * request. Deno owns the handshake response and cannot apply custom response
 * headers.
 */
export declare function resolveDenoWebSocketUpgradeOptions(request: Request, options?: WebSocketUpgradeOptions): dntShim.Deno.UpgradeWebSocketOptions | undefined;
/**
 * Validate and translate a standalone option bag.
 *
 * @internal Prefer {@link resolveDenoWebSocketUpgradeOptions} at an upgrade
 * boundary so protocol selection is also checked against the client offer.
 */
export declare function resolveDenoUpgradeWebSocketOptions(options?: WebSocketUpgradeOptions): dntShim.Deno.UpgradeWebSocketOptions | undefined;
//# sourceMappingURL=websocket.d.ts.map