RequestHeadersStart::class,
      RequestHeadersEnd::class,
      ResponseHeadersStart::class,
      ResponseHeadersEnd::class,
      ResponseBodyStart::class,
      ResponseBodyEnd::class,
      FollowUpDecision::class,
      RequestHeadersStart::class,
      RequestHeadersEnd::class,
      ResponseHeadersStart::class,
      ResponseHeadersEnd::class,
      ResponseBodyStart::class,

import okhttp3.CallEvent.RequestHeadersStart
import okhttp3.CallEvent.ResponseBodyEnd
import okhttp3.CallEvent.ResponseBodyStart
import okhttp3.CallEvent.ResponseHeadersEnd
import okhttp3.CallEvent.ResponseHeadersStart
import okhttp3.EventRecorder
import okhttp3.Headers.Companion.headersOf
import okhttp3.OkHttpClientTestRule
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.Request

        if ("100-continue".equals(request.header("Expect"), ignoreCase = true)) {
          exchange.flushRequest()
          responseBuilder = exchange.readResponseHeaders(expectContinue = true)
          exchange.responseHeadersStart()
          invokeStartEvent = false
        }
        if (responseBuilder == null) {
          if (requestBody.isDuplex()) {
            // Prepare a duplex body so that the application can send a request body later.

  override fun requestFailed(
    call: Call,
    ioe: IOException,
  ) = onEvent(RequestFailed(System.nanoTime(), call, ioe))

  override fun responseHeadersStart(call: Call) =
    onEvent(
      ResponseHeadersStart(
        System.nanoTime(),
        call,
      ),
    )

  override fun responseHeadersEnd(
    call: Call,
    response: Response,

  }

  override fun requestFailed(
    call: Call,
    ioe: IOException,
  ) {
    logWithTime("requestFailed: $ioe")
  }

  override fun responseHeadersStart(call: Call) {
    logWithTime("responseHeadersStart")
  }

  override fun responseHeadersEnd(
    call: Call,
    response: Response,
  ) {
    logWithTime("responseHeadersEnd: $response")
  }

   * This was misleading for tracing because it was too early.
   */
  open fun responseHeadersStart(call: Call) {
  }

  /**
   * Invoked immediately after receiving response headers.
   *
   * This method is always invoked after [responseHeadersStart].
   *
   * @param response the response received over the network. It is an error to access the body of
   *     this response.

        ),
      ).assertLogMatch(Regex("""requestHeadersStart"""))
      .assertLogMatch(Regex("""requestHeadersEnd"""))
      .assertLogMatch(Regex("""responseHeadersStart"""))
      .assertLogMatch(Regex("""responseHeadersEnd: Response\{protocol=http/1\.1, code=200, message=OK, url=$url\}"""))
      .assertLogMatch(Regex("""responseBodyStart"""))

import okhttp3.CallEvent.RequestHeadersStart
import okhttp3.CallEvent.ResponseBodyEnd
import okhttp3.CallEvent.ResponseBodyStart
import okhttp3.CallEvent.ResponseHeadersEnd
import okhttp3.CallEvent.ResponseHeadersStart
import okhttp3.CallEvent.SecureConnectEnd
import okhttp3.CallEvent.SecureConnectStart
import okhttp3.Headers.Companion.headersOf
import okhttp3.internal.duplex.AsyncRequestBody
import okhttp3.testing.PlatformRule

0.587 connectionAcquired
0.588 requestHeadersStart
0.590 requestHeadersEnd
0.591 responseHeadersStart
0.675 responseHeadersEnd
0.676 responseBodyStart
0.679 responseBodyEnd
0.679 connectionReleased
0.680 callEnd
REQUEST 2 (pooled connection)
0.000 callStart
0.001 connectionAcquired
0.001 requestHeadersStart
0.001 requestHeadersEnd
0.002 responseHeadersStart
0.082 responseHeadersEnd
0.082 responseBodyStart
0.082 responseBodyEnd

import okhttp3.CallEvent.RequestHeadersStart
import okhttp3.CallEvent.ResponseBodyEnd
import okhttp3.CallEvent.ResponseBodyStart
import okhttp3.CallEvent.ResponseHeadersEnd
import okhttp3.CallEvent.ResponseHeadersStart
import okhttp3.EventRecorder
import okhttp3.Headers
import okhttp3.OkHttpClientTestRule
import okhttp3.Request
import okhttp3.sse.EventSource
import okhttp3.sse.EventSources.createFactory