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

:param unicode unique_name: A user-provided string that uniquely identifies this resource as an alternative to the Sid.
:param unicode friendly_name: A user-provided string that identifies this resource.

:returns: Updated RatePlanInstance
:rtype: twilio.rest.wireless.v1.rate_plan.RatePlanInstance