if (request.header("Accept") == null) {
          request.newBuilder().addHeader("Accept", "text/event-stream").build()
        } else {
          request
        }

      RealEventSource(actualRequest, listener).apply {
        connect(callFactory)
      }
    }
  }

  @JvmStatic
  fun processResponse(
    response: Response,
    listener: EventSourceListener,
  ) {

        try {
          return InetAddress.getAllByName(hostname).toList()
        } catch (e: NullPointerException) {
          throw UnknownHostException("Broken system behaviour for dns lookup of $hostname").apply {
            initCause(e)
          }
        }
      }
    }
  }

     * un-deprecated because Java callers can't chain when assigning Kotlin vals. (The getter remains
     * deprecated).
     */
    fun setLevel(level: Level) =
      apply {
        this.level = level
      }

    @JvmName("-deprecated_level")
    @Deprecated(
      message = "moved to var",
      replaceWith = ReplaceWith(expression = "level"),

        override fun getAcceptedIssuers(): Array<X509Certificate> = arrayOf()
      }

    private fun createInsecureSslSocketFactory(trustManager: TrustManager): SSLSocketFactory =
      Platform.get().newSSLContext().apply {
        init(null, arrayOf(trustManager), null)
      }.socketFactory

    private fun createInsecureHostnameVerifier(): HostnameVerifier = HostnameVerifier { _, _ -> true }
  }

 *
 * Applications may configure OkHttp with an authenticator for origin servers, or proxy servers,
 * or both.
 *
 * ## Authentication Retries
 *
 * If your authentication may be flaky and requires retries you should apply some policy
 * to limit the retries by the class of errors and number of attempts.  To get the number of
 * attempts to the current point use this function.
 *
 * ```java
 * private int responseCount(Response response) {

  open fun newSslSocketFactory(trustManager: X509TrustManager): SSLSocketFactory {
    try {
      return newSSLContext().apply {
        init(null, arrayOf<TrustManager>(trustManager), null)
      }.socketFactory
    } catch (e: GeneralSecurityException) {
      throw AssertionError("No System TLS: $e", e) // The system has no TLS. Just give up.

    get() = file == null

  @Throws(IOException::class)
  private fun writeHeader(
    prefix: ByteString,
    upstreamSize: Long,
    metadataSize: Long,
  ) {
    val header =
      Buffer().apply {
        write(prefix)
        writeLong(upstreamSize)
        writeLong(metadataSize)
        require(size == FILE_HEADER_SIZE)
      }

    val fileOperator = FileOperator(file!!.channel)

  internal val eventListener: EventListener = client.eventListenerFactory.create(this)

  private val timeout =
    object : AsyncTimeout() {
      override fun timedOut() {
        ******@****.***()
      }
    }.apply {
      timeout(client.callTimeoutMillis.toLong(), MILLISECONDS)
    }

  private val executed = AtomicBoolean()

  // These properties are only accessed by the thread executing the call.

 *  Fix: Don't lose HTTP/2 flow control bytes when incoming data races with a stream close. If this
    happened enough then eventually the connection would stall.

 *  Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we
    could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to
    fail the call.


## Version 4.1.1

    apply {
      assertThat(response!!.code).isEqualTo(expectedCode)
    }

  fun assertSuccessful() =
    apply {
      assertThat(failure).isNull()
      assertThat(response!!.isSuccessful).isTrue()
    }

  fun assertNotSuccessful() =
    apply {
      assertThat(response!!.isSuccessful).isFalse()
    }

  fun assertHeader(
    name: String,
    vararg values: String?,
  ) = apply {