mybatis plus做like查询时怎么把or条件括起来

 q.eq(StringUtils.isNotEmpty(type), CmsTemplate::getType, type);
//这里这样写
q.and(
                queryWrapper -> queryWrapper
                        .like(StringUtils.isNotEmpty(fileName),
                                CmsTemplate::getFileName, fileName)
                        .or().like(StringUtils.isNotEmpty(fileName),
                CmsTemplate::getNameCh, fileName));

        q.orderByDesc(CmsTemplate::getModifyTime);