def update(self, activity_sid=values.unset, attributes=values.unset,<EOL>friendly_name=values.unset,<EOL>reject_pending_reservations=values.unset):
return self._proxy.update(<EOL>activity_sid=activity_sid,<EOL>attributes=attributes,<EOL>friendly_name=friendly_name,<EOL>reject_pending_reservations=reject_pending_reservations,<EOL>)<EOL>
Update the WorkerInstance

:param unicode activity_sid: The activity_sid
:param unicode attributes: The attributes
:param unicode friendly_name: The friendly_name
:param bool reject_pending_reservations: The reject_pending_reservations

:returns: Updated WorkerInstance
:rtype: twilio.rest.taskrouter.v1.workspace.worker.WorkerInstance