*/
    @Throws(IOException::class)
    abstract fun onStream(stream: Http2Stream)

    /**
     * Notification that the connection's peer's settings may have changed to [settings].
     * Implementations should take appropriate action to handle the updated settings.
     *
     * Methods to this method may be made concurrently with [onStream]. But a calls to this method

```java
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(Level.BASIC);
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(logging)
  .build();
```

You can change the log level at any time by calling `setLevel()`.

To log to a custom location, pass a `Logger` instance to the constructor.
```java
HttpLoggingInterceptor logging = new HttpLoggingInterceptor(new Logger() {

  private val Response.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  private val Request.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  /**
   * Received trailers. Null unless the response body uses chunked transfer-encoding and includes
   * trailers. Undefined until the end of the response body.
   */

    val headers1 =
      Headers.Builder()
        .add("Connection", "close")
        .add("Transfer-Encoding", "chunked")
        .build()
    val headers2 =
      Headers.Builder()
        .add("Connection", "close")
        .add("Transfer-Encoding", "chunked")
        .build()
    assertThat(headers2).isEqualTo(headers1)
    assertThat(headers2.hashCode()).isEqualTo(headers1.hashCode())
  }

        this.streamHandler = streamHandler
      }

    /**
     * Sets the response body to [body], chunked every [maxChunkSize] bytes.
     */
    fun chunkedBody(
      body: Buffer,
      maxChunkSize: Int,
    ) = apply {
      removeHeader("Content-Length")
      headers.add(CHUNKED_BODY_HEADER)

      val bytesOut = Buffer()
      while (!body.exhausted()) {

      return endpoint;
    }

    @Override public Socket accept() throws IOException {
      try {
        UnixSocketChannel channel = serverSocketChannel.accept();
        return new TunnelingUnixSocket(path, channel, endpoint);
      } catch (ClosedChannelException e) {
        SocketException exception = new SocketException();
        exception.initCause(e);
        throw exception;
      }

import okhttp3.internal.platform.Platform

/**
 * Example of using a hardware key to perform client auth.
 * Prefer recent JDK builds, and results are temperamental to slight environment changes.
 * Different instructions and configuration may be required for other hardware devices.
 *
 * Using a yubikey device as a SSL key store.
 * https://lauri.võsandi.com/2017/03/yubikey-for-ssh-auth.html
 *

    private val sources: List<Source>,
    private val lengths: LongArray,
  ) : Closeable {
    fun key(): String = key

    /**
     * Returns an editor for this snapshot's entry, or null if either the entry has changed since
     * this snapshot was created or if another edit is in progress.
     */
    @Throws(IOException::class)
    fun edit(): Editor? = ******@****.***(key, sequenceNumber)

      .assertLogMatch(Regex("""Transfer-encoding: chunked"""))
      .assertLogEqual("<-- END HTTP (streaming)")
      .assertNoMoreLogs()
    applicationLogs
      .assertLogEqual("--> GET $url")
      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Type: text/event-stream")
      .assertLogMatch(Regex("""Transfer-encoding: chunked"""))

 * request body. If a request body is not retryable then the client may fail the request, making
 * client behavior non-deterministic. Add delays in the client to improve the chances that the
 * server has closed the socket before follow up requests are made.
 */
@ExperimentalOkHttpApi
sealed interface SocketPolicy {
  /**
   * Shutdown [MockWebServer] after writing response.
   */