code: def add(self, discount_name, target_types, target_ids, discount_types, discount_values, session):
          '''taobao.fenxiao.discount.add 新增等级折扣
          
          新增等级折扣'''
          request = TOPRequest('taobao.fenxiao.discount.add')
          request['discount_name'] = discount_name
          request['target_types'] = target_types
          request['target_ids'] = target_ids
          request['discount_types'] = discount_types
          request['discount_values'] = discount_values
          self.create(self.execute(request, session), fields=['discount_id'])
          return self.discount_if add(self, discount_name, target_types, target_ids, discount_types, discount_values, session):
          '''taobao.fenxiao.discount.add 新增等级折扣
          
          新增等级折扣'''
          request = TOPRequest('taobao.fenxiao.discount.add')
          request['discount_name'] = discount_name
          request['target_types'] = target_types
          request['target_ids'] = target_ids
          request['discount_types'] = discount_types
          request['discount_values'] = discount_values
          self.create(self.execute(request, session), fields=['discount_id'])
          return self.discount_id
docs: taobao.fenxiao.discount.add 新增等级折扣
          
          新增等级折扣