code: public GitlabRunner getRunnerDetail(int id) throws IOException {
          String tailUrl = String.format("%s/%d", GitlabRunner.URL, id);
          return retrieve().to(tailUrl, GitlabRunner.class);
      }
docs: Get details information of the runner with the specified id.
  
  @param id Runner id.
  @return Extensive GitlabRunner Details.
  @throws IOException on gitlab api call error