def update(self, friendly_name=values.unset, device_sid=values.unset):
return self._proxy.update(friendly_name=friendly_name, device_sid=device_sid, )<EOL>
Update the KeyInstance

:param unicode friendly_name: The human readable description for this Key.
:param unicode device_sid: The unique identifier of a Key to be authenticated.

:returns: Updated KeyInstance
:rtype: twilio.rest.preview.deployed_devices.fleet.key.KeyInstance