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

:param unicode friendly_name: A human-readable name for the Activity, such as 'on-call', 'break', 'email', etc.

:returns: Updated ActivityInstance
:rtype: twilio.rest.taskrouter.v1.workspace.activity.ActivityInstance