def delete(self, postage_id, session):
        '''taobao.postage.delete 删除单个运费模板
        
        删除单个邮费模板 postage_id对应的邮费模板要属于当前会话用户'''
        request = TOPRequest('taobao.postage.delete')
        request['postage_id'] = postage_id
        self.create(self.execute(request, session)['postage'])
        return self