'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):

    data = values.of({'QualityScore': quality_score, 'Issue': issue})
    payload = self._version.update('POST', self._uri, data=data)
    return FeedbackInstance(self._version, payload, account_sid=self._solution['account_sid'], call_sid=self._solution['call_sid'])
