title: Google API doc revision history: cannot get all metadata
body: <p>Using google's api, I am trying to get all revision metadata for a gdoc.  Specifically, I want user data, i.e. who made what revision to a document.  Here is my code:</p>
  <pre><code>SCOPES = ['https://www.googleapis.com/auth/drive']
  SERVICE_ACCOUNT_FILE = 'path to my .json file'
  creds = service_account.Credentials.from_service_account_file(SERVICE_ACCOUNT_FILE, scopes = SCOPES)
  service = build('drive', 'v3', credentials=creds)
  
  doc_id = &quot;my doc id&quot;
  
  document_revisions = service.revisions().list(fileId=doc_id).execute()
  </code></pre>
  <p>When I execute the code, I only get limited metadata, shown below:</p>
  <pre><code>{'kind': 'drive#revisionList',
   'revisions': [{'kind': 'drive#revision',
     'id': '1',
     'mimeType': 'application/vnd.google-apps.document',
     'modifiedTime': '2020-09-25T03:18:42.727Z'},
    {'kind': 'drive#revision',
     'id': '92',
     'mimeType': 'application/vnd.google-apps.document',
     'modifiedTime': '2020-09-25T03:22:53.980Z'},
    {'kind': 'drive#revision',
     'id': '246',
     'mimeType': 'application/vnd.google-apps.document',
     'modifiedTime': '2020-09-25T04:59:20.259Z'}]}
  </code></pre>
  <p>Why can't I get the full metadata as shown here:
  <a href="https://developers.google.com/drive/api/v3/reference/revisions" rel="nofollow noreferrer">https://developers.google.com/drive/api/v3/reference/revisions</a></p>