code: private static String specifyBuild(String description, String docName, IUnitFilter filter) {
          ByteArrayOutputStream bos = new ByteArrayOutputStream();
          ApiBuilder.build(new UnitMdBuilderHandler(description, docName, filter).callback(data -> {
              try {
                  bos.write(data);
                  if (data.length > 0) {
                      LOG.info("api-doc接口文档unit文档大小 : " + data.length);
                      LOG.info("api-doc接口文档unit发布成功");
                  } else {
                      LOG.info("api-doc接口文档unit暂无扫描到相关数据");
                  }
              } catch (Exception e) {
                  LOG.error("api-doc接口文档生成unit接口文档出错", e);
              }
          }));
          return bos.toString();
      }
docs: 返回生成MD的文件字符串