if (cacheResponse != null) {
      if (networkResponse?.code == HTTP_NOT_MODIFIED) {
        val response =
          cacheResponse
            .newBuilder()
            .headers(combine(cacheResponse.headers, networkResponse.headers))
            .sentRequestAtMillis(networkResponse.sentRequestAtMillis)
            .receivedResponseAtMillis(networkResponse.receivedResponseAtMillis)

    }

    val networkRequest = requestBuilder.build()
    val networkResponse = chain.proceed(networkRequest)

    chain.cookieJar.receiveHeaders(networkRequest.url, networkResponse.headers)

    val responseBuilder =
      networkResponse
        .newBuilder()
        .request(networkRequest)

    if (transparentGzip &&
      "gzip".equals(networkResponse.header("Content-Encoding"), ignoreCase = true) &&

received followed by a cache hit or miss.  Critically in the cache hit scenario the server won’t send the response body.

The response will have non-null `cacheResponse` and `networkResponse`. The cacheResponse will be used as the top level
response only if the response code is HTTP/1.1 304 Not Modified.

 - CallStart
 - **CacheConditionalHit**
 - ConnectionAcquired
 - ... Standard Events...

          println("Response 1 response:          $it")
          println("Response 1 cache response:    ${it.cacheResponse}")
          println("Response 1 network response:  ${it.networkResponse}")
          return@use it.body!!.string()
        }

        val response2Body = client.newCall(request).execute().use {
          if (!it.isSuccessful) throw IOException("Unexpected code $it")

    val body: ResponseBody = response.body
    val builder: Response.Builder = response.newBuilder()
    val redirect: Boolean = response.isRedirect
    val networkResponse: Response? = response.networkResponse
    val cacheResponse: Response? = response.cacheResponse
    val priorResponse: Response? = response.priorResponse
    val challenges: List<Challenge> = response.challenges()

      // Use the request headers sent over the network, since that's what the response varies on.
      // Otherwise OkHttp-supplied headers like "Accept-Encoding: gzip" may be lost.
      val requestHeaders = networkResponse!!.request.headers
      val responseHeaders = headers
      return varyHeaders(requestHeaders, responseHeaders)
    }

    /**

	public final fun headers (Ljava/lang/String;)Ljava/util/List;
	public final fun isRedirect ()Z
	public final fun isSuccessful ()Z
	public final fun message ()Ljava/lang/String;
	public final fun networkResponse ()Lokhttp3/Response;
	public final fun newBuilder ()Lokhttp3/Response$Builder;
	public final fun peekBody (J)Lokhttp3/ResponseBody;
	public final fun peekTrailers ()Lokhttp3/Headers;

	public final fun headers (Ljava/lang/String;)Ljava/util/List;
	public final fun isRedirect ()Z
	public final fun isSuccessful ()Z
	public final fun message ()Ljava/lang/String;
	public final fun networkResponse ()Lokhttp3/Response;
	public final fun newBuilder ()Lokhttp3/Response$Builder;
	public final fun peekBody (J)Lokhttp3/ResponseBody;
	public final fun peekTrailers ()Lokhttp3/Headers;

      .assertReceivedResponseAtMillis(request1SentAt, request1ReceivedAt)

    // Check the network response. It has the caller's request, plus some caching headers.
    cacheHit
      .networkResponse()
      .assertCode(304)
      .assertHeader("Donut", "b")
      .assertRequestHeader("Accept-Language", "en-US")
      .assertRequestHeader("Accept-Charset", "UTF-8")

          assertNotNull(it.networkResponse)

          assertEquals(3, it.cacheControl.maxAgeSeconds)
          assertTrue(it.cacheControl.isPublic)
        }

      client
        .newCall(request)
        .execute()
        .use {
          assertEquals(200, it.code)
          assertNotNull(it.cacheResponse)
          assertNull(it.networkResponse)
        }