assertThat(response.code).isEqualTo(200)
      assertThat(response.socket).isNull()
      assertThat(response.body.string()).isEqualTo("normal request")
    }
    // Confirm there's no RequestBodyStart/RequestBodyEnd on failed upgrades.
    assertThat(listener.recordedEventTypes()).containsExactly(
      "CallStart",
      "ProxySelectStart",
      "ProxySelectEnd",
      "DnsStart",
      "DnsEnd",

  @Throws(IOException::class)
  fun createRequestBody(
    request: Request,
    duplex: Boolean,
  ): Sink {
    this.isDuplex = duplex
    val contentLength = request.body!!.contentLength()
    eventListener.requestBodyStart(call)
    val rawRequestBody = codec.createRequestBody(request, contentLength)
    return RequestBodySink(rawRequestBody, contentLength)
  }

  @Throws(IOException::class)
  fun flushRequest() {
    try {

	public fun proxySelectEnd (Lokhttp3/Call;Lokhttp3/HttpUrl;Ljava/util/List;)V
	public fun proxySelectStart (Lokhttp3/Call;Lokhttp3/HttpUrl;)V
	public fun requestBodyEnd (Lokhttp3/Call;J)V
	public fun requestBodyStart (Lokhttp3/Call;)V
	public fun requestFailed (Lokhttp3/Call;Ljava/io/IOException;)V
	public fun requestHeadersEnd (Lokhttp3/Call;Lokhttp3/Request;)V
	public fun requestHeadersStart (Lokhttp3/Call;)V

	public fun proxySelectEnd (Lokhttp3/Call;Lokhttp3/HttpUrl;Ljava/util/List;)V
	public fun proxySelectStart (Lokhttp3/Call;Lokhttp3/HttpUrl;)V
	public fun requestBodyEnd (Lokhttp3/Call;J)V
	public fun requestBodyStart (Lokhttp3/Call;)V
	public fun requestFailed (Lokhttp3/Call;Ljava/io/IOException;)V
	public fun requestHeadersEnd (Lokhttp3/Call;Lokhttp3/Request;)V
	public fun requestHeadersStart (Lokhttp3/Call;)V

    }

    assertThat(listener.recordedEventTypes()).containsExactly(
      "CallStart",
      "ConnectionAcquired",
      "RequestHeadersStart",
      "RequestHeadersEnd",
      "RequestBodyStart",
      "RequestBodyEnd",
      "ResponseFailed",
      "RetryDecision",
      "ConnectionReleased",
      "CallFailed",
    )
    assertThat(listener.findEvent<RetryDecision>()).all {