code: def update_device_info(self, device_id, display_name):
          
          content = {
              "display_name": display_name
          }
          return self._send("PUT", "/devices/%s" % device_id, content=content)
docs: Update the display name of a device.
  
          Args:
              device_id (str): The device ID of the device to update.
              display_name (str): New display name for the device.