import type { Runtime, SocketAdapter, TLSOptions } from "./core/types.js";
/** Detect the current JavaScript runtime. */
export declare function detectRuntime(): Runtime;
/**
 * Dynamically import and instantiate the correct adapter for the current runtime.
 */
export declare function createDefaultAdapter(options?: {
    secure?: boolean;
    connectionTimeout?: number;
    tls?: TLSOptions;
}): Promise<SocketAdapter>;