1299 1299

======== BEGIN INBOUND STREAM ========
PUT /articles/123/ HTTP/1.1
Host: example.com
User-Agent: demo
Content-Type: text/plain
Content-Length: 16
Prefer: commit="yes, please!"; are-you-sure="why, definitely!"

Hello world!

======== BEGIN OUTBOUND STREAM ========
HTTP/1.1 200 OK
Date: Thu, 31 Dec 2015 18:26:56 GMT
Content-Type: text/plain
Content-Length: 18
Preference-Applied: commit="yes, please!"

Article updated.
