* **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

      // 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;

    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

      .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")

	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;

    ```

 *  New: `Response.body` is now non-null. This was generally the case in OkHttp 4.x, but the Kotlin
    type declaration was nullable to support rare cases like the body on `Response.cacheResponse`,
    `Response.networkResponse`, and `Response.priorResponse`. In such cases the body is now
    non-null, but attempts to read its content will fail.
 *  New: Kotlin-specific APIs for request tags. Kotlin language users can lookup tags with a type