code: public List<String> removeKeys(String moduleName) {
          List<String> allKeys = new ArrayList<>();
          for (Channel channel : channels) {
              if (moduleName.equals(getModuleName(channel))) {
                  allKeys.add(channel.remoteAddress().toString());
              }
          }
          return allKeys;
      }
docs: 获取模块的远程标识keys
  
  @param moduleName 模块名称
  @return remoteKeys