docs: public LoadStatisticsSnapshot computeSnapshot() {
          if (modern) {
              return computeSnapshot(Jenkins.getInstance().getQueue().getBuildableItems());
          } else {
              int t = computeTotalExecutors();
              int i = computeIdleExecutors();
              return new LoadStatisticsSnapshot(t, t, Math.max(i-t,0), Math.max(t-i,0), i, i, computeQueueLength());
          }
      }