import WebSocketReadyState from './WebSocketReadyState';
/** Adapter for WebSocket implementations */
export default interface WebSocketAdapter {
    /**
     * Opens a WebSocket connection to the URL with the given protocols.
     *
     * @param url URL to connect to
     * @param protocols Protocols to send when establishing the connection
     * @param isSignedUrl whether the URL is signed
     */
    create(url: string, protocols: string[], isSignedUrl?: boolean): void;
    /**
     * Sends a raw byte message.
     *
     * @param message byte or string message to send
     * @returns 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 handler The handler being assigned.
     * @param eventListener The event listener to add.
     */
    addEventListener(handler: string, eventListener: EventListener): void;
    /**
     * Remove an event listener for one of the handler types.
     *
     * @param handler The handler being assigned.
     * @param eventListener The event listener to add.
     */
    removeEventListener?(handler: string, eventListener: EventListener): void;
    /**
     * Returns the ready state.
     *
     * @returns The state of the WebSocketConnection
     */
    readyState(): WebSocketReadyState;
}