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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_alerts_unarchived(self):
 """Return a list of Alerts unarchived."""


        js = json.dumps({'_sort': '-time', 'archived': False})
        params = urllib.urlencode({'json': js})
        return self._read(self.api_url + 'list/alarm', params)