title: Youtube Data API v3 - Get video feeds of auto-generated channels
body: <p>I want to use auto-generated channel Ids as example below...</p>
  
  <p>GET <a href="https://www.googleapis.com/youtube/v3/channels?part=snippet&amp;id=UCrfjym-5AEUY2QzXsddRIQA&amp;fields=items(id%2Csnippet)&amp;key=" rel="nofollow">https://www.googleapis.com/youtube/v3/channels?part=snippet&amp;id=UCrfjym-5AEUY2QzXsddRIQA&amp;fields=items(id%2Csnippet)&amp;key=</a>{YOUR_API_KEY}</p>
  
  <p>...to access their video contents. But seems I cannot make use of the <code>part: 'snippet,contentDetails'</code>, or <code>filter:'uploads'</code> filtering method as I use for getting normal user channel Ids before grabbing their playlistItems. Is there a simple method to display video feed or playlist contents of an auto-generated channel? I use the gapi.client instead of the url. Thx for guidance.</p>