'Update the QueueInstance
:param unicode friendly_name: A human readable description of the queue
:param unicode max_size: The max number of members allowed in the queue
:returns: Updated QueueInstance
:rtype: twilio.rest.api.v2010.account.queue.QueueInstance'

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

    return self._proxy.update(friendly_name=friendly_name, max_size=max_size)
