/**
 * Adapted from rsocket-websocket-client
 * https://github.com/rsocket/rsocket-js/blob/e224cf379e747c4f1ddc4f2fa111854626cc8575/packages/rsocket-websocket-client/src/WebsocketClientTransport.ts#L17
 * This adds additional error handling for React Native iOS.
 * This particularly adds a close listener to handle cases where the WebSocket
 * connection closes immediately after opening without emitting an error.
 */
import { ClientTransport, Closeable, Demultiplexer, DuplexConnection, FrameHandler, Multiplexer, Outbound } from 'rsocket-core';
import { ClientOptions } from 'rsocket-websocket-client';
export declare class WebsocketClientTransport implements ClientTransport {
    private readonly url;
    private readonly factory;
    constructor(options: ClientOptions);
    connect(multiplexerDemultiplexerFactory: (outbound: Outbound & Closeable) => Multiplexer & Demultiplexer & FrameHandler): Promise<DuplexConnection>;
}