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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 create_zone(self, zone, serial=None):
 """Create a zone for the specified zone. :param zone: the zone name to create :param serial: serial value on the zone (default: strftime(%Y%m%d01)) """

        return self.service.createObject({
            'name': zone,
            'serial': serial or time.strftime('%Y%m%d01'),
            "resourceRecords": {}})