code: def get_cv_accuracy(res):
      
      ac_list = [(accuracy["train_acc_final"],
                  accuracy["test_acc_final"]
                  )
                 for accuracy, weights in res]
      ac = np.array(ac_list)
  
      perf = {
          "mean_train_acc": np.mean(ac[:, 0]),
          "std_train_acc": np.std(ac[:, 0]),
          "mean_test_acc": np.mean(ac[:, 1]),
          "std_test_acc": np.std(ac[:, 1]),
  
      }
      return perf
docs: Extract the cv accuracy from the model