title: Python 3 - Google Drive API: AttributeError: 'Resource' object has no attribute 'children'
body: <p>I made a command-line folder selector. I want it to list all files in the folder. I've tried by using the service.children()-thing but I can't get that to work.
  The thing that doesn't work:</p>
  
  <pre><code>files = service.children().list(folderId=file_id).execute()
  </code></pre>
  
  <p>Here is the code instancing <code>service</code> object:</p>
  
  <pre><code>service = build('drive', 'v3', http=creds.authorize(Http()))
  </code></pre>
  
  <p>Other parts of the code works, so I know that the service is working</p>
  
  <p>I know that the variable <code>file_id</code> is a valid folder.
  Someone who knows that it might be?</p>