title: Is there an API endpoint to find the drive of a private channel
body: <p>We are looking into creating teams in our organization with prefilled folder structures in the files tab.</p>
  <p>For normal channels this is easy, because the files lay in a directory named after the channel in the root SharePoint of the group. So we can do POST requests to the
  <code>https://graph.microsoft.com/beta/groups/{group-id}/drive/items/root/children</code> endpoint and create the folders for the channels. The answer from the endpoint contains the ID of the new folders and we can move forward creating the folder structures for the channels using this id.</p>
  <p>Private channels however are located outside the groups SharePoint.</p>
  <p>The question is, is there a possibility to get the root of the drive with the information provided by the <code>https://graph.microsoft.com/beta/teams/{id}/channels</code> POST call which creates the private channel?</p>