'Update the WorkerInstance
:param unicode activity_sid: The activity_sid
:param unicode attributes: The attributes
:param unicode friendly_name: The friendly_name
:returns: Updated WorkerInstance
:rtype: twilio.rest.taskrouter.v1.workspace.worker.WorkerInstance'

def update(self, activity_sid=values.unset, attributes=values.unset, friendly_name=values.unset):

    return self._proxy.update(activity_sid=activity_sid, attributes=attributes, friendly_name=friendly_name)
