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)

      }

    open fun socket(socket: Socket) =
      apply {
        this.socket = socket
      }

    open fun networkResponse(networkResponse: Response?) =
      apply {
        checkSupportResponse("networkResponse", networkResponse)
        this.networkResponse = networkResponse
      }

    open fun cacheResponse(cacheResponse: Response?) =
      apply {

   *  * [OkHttpClient.authenticator] must respond to an authorization challenge.
   *
   * @param networkResponse the intermediate response that may require a follow-up request.
   * @param nextRequest the follow-up request that will be made. Null if no follow-up will be made.
   */
  open fun followUpDecision(
    call: Call,
    networkResponse: Response,
    nextRequest: Request?,
  ) {
  }

        // The network response also has everything, including the raw gzipped content.
        val networkResponse = chain.proceed(networkRequest)
        assertThat(networkResponse.header("Content-Encoding")).isEqualTo("gzip")
        networkResponse
      }
    client =
      client
        .newBuilder()
        .addNetworkInterceptor(interceptor)
        .build()

    val message: String = response.message()
    val handshake: Handshake? = response.handshake()
    val headers: Headers = response.headers()
    val body: ResponseBody = response.body()
    val networkResponse: Response? = response.networkResponse()
    val cacheResponse: Response? = response.cacheResponse()
    val priorResponse: Response? = response.priorResponse()
    val cacheControl: CacheControl = response.cacheControl()

 * **PushPromise**: headers, method, path, response
 * **Request**: body, cacheControl, headers, method, url
 * **Response**: body, cacheControl, cacheResponse, code, handshake, headers, message,
   networkResponse, priorResponse, protocol, receivedResponseAtMillis, request, sentRequestAtMillis
 * **Route**: address, proxy, socketAddress
 * **TlsVersion**: javaName

#### Renamed Functions

          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")

      // 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)
    }

    /**

          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)
        }

    connection. Now it is.
 *  Fix: Never return null on `call.proceed()`. This was a bug in call
    cancelation.
 *  Fix: When a network interceptor mutates a request, that change is now
    reflected in `Response.networkResponse()`.
 *  Fix: Badly-behaving caches now throw a checked exception instead of a
    `NullPointerException`.
 *  Fix: Better handling of uncaught exceptions in MockWebServer with HTTP/2.

## Version 2.3.0