private var failed = false

  /** Total number of pings sent by this web socket. */
  private var sentPingCount = 0

  /** Total number of pings received by this web socket. */
  private var receivedPingCount = 0

  /** Total number of pongs received by this web socket. */
  private var receivedPongCount = 0

  /** True if we have sent a ping that is still awaiting a reply. */
  private var awaitingPong = false

   *
   * The values of this attribute determine whether this cookie is sent for cross-site calls:
   *
   *  - "Strict": the cookie is omitted when the subject URL is an embedded resource or a
   *    potentially-destructive navigation.
   *
   *  - "Lax": the cookie is omitted when the subject URL is an embedded resource. It is sent for
   *    potentially-destructive navigation. This is the default value.
   *

        try {
          response = realChain.proceed(request)
          newRoutePlanner = true
        } catch (e: IOException) {
          // An attempt to communicate with a server failed. The request may have been sent.
          if (!recover(e, call, request, requestSendStarted = e !is ConnectionShutdownException)) {
            throw e.withSuppressed(recoveredFailures)
          } else {
            recoveredFailures += e
          }

      connectionSpecIndex = -1,
      isTlsFallback = false,
    )
  }

  /**
   * Returns a request that creates a TLS tunnel via an HTTP proxy. Everything in the tunnel request
   * is sent unencrypted to the proxy server, so tunnels include only the minimum set of headers.
   * This avoids sending potentially sensitive data like HTTP cookies to the proxy unencrypted.
   *

    this new one.)

    ```kotlin
    implementation("com.squareup.okhttp3:okhttp-java-net-cookiehandler:5.0.0-alpha.12")
    ```

 *  New: `Cookie.sameSite` determines whether cookies should be sent on cross-site requests. This
    is used by servers to defend against Cross-Site Request Forgery (CSRF) attacks.

 *  New: Log the total time of the HTTP call in `HttpLoggingInterceptor`.

  private val taskRunner = builder.taskRunner

  /** Asynchronously writes frames to the outgoing socket. */
  private val writerQueue = taskRunner.newQueue()

  /** Ensures push promise callbacks events are sent in order per stream. */
  private val pushQueue = taskRunner.newQueue()

  /** Notifies the listener of settings changes. */
  private val settingsListenerQueue = taskRunner.newQueue()

  @get:JvmName("writeTimeoutMillis")
  val writeTimeoutMillis: Int = builder.writeTimeout

  /** Web socket and HTTP/2 ping interval (in milliseconds). By default pings are not sent. */
  @get:JvmName("pingIntervalMillis")
  val pingIntervalMillis: Int = builder.pingInterval

  /** Web socket close timeout (in milliseconds). */
  @get:JvmName("webSocketCloseTimeout")

    internal set

  /** Received headers yet to be [taken][takeHeaders]. */
  private val headersQueue = ArrayDeque<Headers>()

  /** True if response headers have been sent or received. */
  private var hasResponseHeaders: Boolean = false

  internal val source =
    FramingSource(
      maxByteCount = connection.okHttpSettings.initialWindowSize.toLong(),
      finished = inFinished,

   */
  fun requireClientAuth() {
    this.clientAuth = CLIENT_AUTH_REQUIRED
  }

  /**
   * Awaits the next HTTP request, removes it, and returns it. Callers should use this to verify the
   * request was sent as intended. This method will block until the request is available, possibly
   * forever.
   *
   * @return the head of the request queue
   */
  @Throws(InterruptedException::class)

      :status: 200 OK
      :version: HTTP/1.1
      etag: foo
      content-length: 3
      OkHttp-Received-Millis: ${System.currentTimeMillis()}
      X-Android-Response-Source: NETWORK 200
      OkHttp-Sent-Millis: ${System.currentTimeMillis()}

      TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
      1