code: public AddTagUsersResponse addTagUsers(Integer tagid, List<String> users, List<Integer> partys){
          BeanUtil.requireNonNull(tagid, "tagid不能为空！");
          if((users == null || users.size() == 0) && (partys == null || partys.size() == 0)){
              throw new WeixinException("userlist、partylist不能同时为空！");
          }
          if(users != null && users.size() > 1000){
              throw new WeixinException("userlist单次请求长度不能大于1000");
          }
          if(partys != null && partys.size() > 100){
              throw new WeixinException("partylist单次请求长度不能大于100");
          }
          AddTagUsersResponse response;
          String url = BASE_API_URL + "cgi-bin/tag/addtagusers?access_token=#";
          final Map<String, Object> params = new HashMap<String, Object>();
          params.put("tagid", tagid);
          params.put("userlist", users);
          params.put("partylist", partys);
          BaseResponse r = executePost(url, JSONUtil.toJson(params));
          String jsonResult = isSuccess(r.getErrcode()) ? r.getErrmsg() : r.toJsonString();
          response = JSONUtil.toBean(jsonResult, AddTagUsersResponse.class);
          return response;
      }
docs: 增加标签成员。userlist与partylist非必须，但不能同时为空
  @param tagid 目标标签id。必填
  @param users 企业成员ID列表。单次请求长度不能超过1000
  @param partys 企业部门ID列表。单次请求长度不能超过100
  @return 操作结果