taobao.fenxiao.discount.add 新增等级折扣
        
        新增等级折扣

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_id