'Update the FeedbackInstance
:param unicode quality_score: An integer from 1 to 5
:param FeedbackInstance.Issues issue: Issues experienced during the call
:returns: Updated FeedbackInstance
:rtype: twilio.rest.api.v2010.account.call.feedback.FeedbackInstance'

def update(self, quality_score, issue=values.unset):

    return self._proxy.update(quality_score, issue=issue)
