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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 date_added(self, date_added):
 """ Updates the security labels date_added Args: date_added: Converted to %Y-%m-%dT%H:%M:%SZ date format """

        date_added = self._utils.format_datetime(date_added, date_format='%Y-%m-%dT%H:%M:%SZ')

        self._data['dateAdded'] = date_added
        request = self._base_request
        request['dateAdded'] = date_added
        return self._tc_requests.update(request, owner=self.owner)