code: @JSONField(serialize = false)
      public String[] getSequentialNames() {
          List<Obj> sequential = getSequential();
          String[] sequentialNames = new String[sequential.size()];
          for (int i = 0; i < sequential.size(); i++) {
              sequentialNames[i] = sequential.get(i).getName();
          }
          return sequentialNames;
      }
docs: sequential属性名视图；
  注册服务时，不要序列化此属性，与inputObjs内的属性重复了，保留较全的inputObjs属性.