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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 del_downtime(self, downtime_id):
 """ Delete a downtime in this object :param downtime_id: id of the downtime to delete :type downtime_id: int :return: None """

        if downtime_id in self.downtimes:
            self.downtimes[downtime_id].can_be_deleted = True
            del self.downtimes[downtime_id]