google/google-api-ruby-client — pull request #126 by gdurelle (2014-05-22 14:05:28+00:00)
Title: Update api_client.rb

tried to add headers like so:

```ruby
res = self.client.execute!(api_method: @youtube.channels.list, parameters: {mySubscribers: true, part: 'id,snippet'}, headers: {'If-None-Match' => etag})
```

But no effect, still have a result instead of a 304. or is it me ?