code: def update_user(bridge_user):
      
      if bridge_user.bridge_id:
          url = author_id_url(bridge_user.bridge_id)
      else:
          url = author_uid_url(bridge_user.netid)
      resp = patch_resource(url + ("?%s" % CUSTOM_FIELD),
                            json.dumps(bridge_user.to_json_patch(),
                                       separators=(',', ':')))
      return _process_json_resp_data(resp)
docs: Update only the user attributes provided.
      Return a list of BridgeUsers objects with custom fields.