import WebSocketReadyState from './WebSocketReadyState';
/** Adapter for WebSocket implementations */
export default interface WebSocketAdapter {
    /**
     * Opens a WebSocket connection to the URL with the given protocols.
     *
     * @param{string} url URL to connect to
     * @param{string[]} protocols Protocols to send when establishing the connection
     * @param{boolean} isSignedUrl whether the URL is signed
     */
    create(url: string, protocols: string[], isSignedUrl?: boolean): void;
    /**
     * Sends a raw byte message.
     *
     * @param{Uint8Array | string} Raw byte or string message to send
     * @return{boolean} Whether the data was queued for sending
     */
    send(message: Uint8Array | string): boolean;
    /**
     * Close the WebSocket connection.
     */
    close(code?: number, reason?: string): void;
    /**
     * Destroys internal reference to the WebSocket.
     */
    destroy(): void;
    /**
     * Add an event listener for one of the handler types.
     *
     * @param{string} handler The handler being assigned.
     * @param{EventListener} eventListener
     */
    addEventListener(handler: string, eventListener: EventListener): void;
    /**
     * Returns the ready state.
     *
     * @return{WebSocketReadyState} The state of the WebSocketConnection
     */
    readyState(): WebSocketReadyState;
}