/** Uses [request] to connect a new web socket. */
  override fun newWebSocket(
    request: Request,
    listener: WebSocketListener,
  ): WebSocket {
    val webSocket =
      RealWebSocket(
        taskRunner = taskRunner,
        originalRequest = request,
        listener = listener,
        random = Random(),

                        "server_name": "istio-envoy",
                        "use_remote_address": false,
                        "upgrade_configs": [
                          {
                            "upgrade_type": "websocket"
                          }
                        ],
                        "stream_idle_timeout": "0s",
                        "normalize_path": true,
                        "request_id_extension": {

    prefers `%20` when doing its own encoding, but will retain `+` when that is
    provided.
 *  Fix: Enforce that callers call `WebSocket.close()` on IO errors. Error
    handling in WebSockets is significantly improved.
 *  Fix: Don't use SPDY/3 style header concatenation for HTTP/2 request headers.
    This could have corrupted requests where multiple headers had the same name,

	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
	github.com/googleapis/gax-go/v2 v2.13.0 // indirect
	github.com/gorilla/websocket v1.5.3 // indirect
	github.com/hashicorp/errwrap v1.1.0 // indirect
	github.com/hashicorp/go-multierror v1.1.1 // indirect
	github.com/hashicorp/go-uuid v1.0.3 // indirect
	github.com/hashicorp/golang-lru v1.0.2 // indirect

// IsOnline - returns whether client failed to connect or not.
func (client *storageRESTClient) IsOnline() bool {
	return client.restClient.IsOnline() || client.IsOnlineWS()
}

// IsOnlineWS - returns whether websocket client failed to connect or not.
func (client *storageRESTClient) IsOnlineWS() bool {
	return client.gridConn.State() == grid.StateConnected
}

// LastConn - returns when the disk is seen to be connected the last time

import okhttp3.internal.ws.WebSocketProtocol.validateCloseCode
import okio.Buffer
import okio.BufferedSink
import okio.ByteString

/**
 * An [RFC 6455][rfc_6455]-compatible WebSocket frame writer.
 *
 * This class is not thread safe.
 *
 * [rfc_6455]: http://tools.ietf.org/html/rfc6455
 */
class WebSocketWriter(
  private val isClient: Boolean,
  val sink: BufferedSink,

        **Example**

        ```python
        from fastapi import FastAPI, WebSocket

        app = FastAPI()

        @app.websocket("/ws")
        async def websocket_endpoint(websocket: WebSocket):
            await websocket.accept()
            while True:
                data = await websocket.receive_text()

    }

  fun withWebSocketUpgrade(listener: WebSocketListener) =
    apply {
      status = "HTTP/1.1 101 Switching Protocols"
      setHeader("Connection", "Upgrade")
      setHeader("Upgrade", "websocket")
      body = null
      webSocketListener = listener
    }

  override fun toString(): String = status

  companion object {
    private const val CHUNKED_BODY_HEADER = "Transfer-encoding: chunked"

	Interface   string           // This is a VRF device passed via `--interface` flag
	Trace       func(msg string) // Trace when starting.
}

// ForWebsocket returns TCPOptions valid for websocket net.Conn
func (t TCPOptions) ForWebsocket() TCPOptions {
	return TCPOptions{
		UserTimeout: t.UserTimeout,
		Interface:   t.Interface,
		SendBufSize: t.SendBufSize,
		RecvBufSize: t.RecvBufSize,

		}
		dialer.TLSConfig = tls

		conn, br, _, err := dialer.Dial(ctx, toDial)
		if br != nil {
			ws.PutReader(br)
		}
		return conn, err
	}
}

// ConnectWS returns a function that dials a websocket connection to the given address.
// Route and auth are added to the connection.
func ConnectWS(dial ContextDialer, auth AuthFn, tls *tls.Config) func(ctx context.Context, remote string) (net.Conn, error) {