code: def test_metrics_correct(self):
      preds = [self.base_groups] * 10
      labels = [self.base_groups] * 10
      self.check_metrics(
          preds, labels, self.correct_expected, group_metrics
      )
  
imports: import unittest
  from copy import deepcopy
  from finetune.util.group_metrics import get_count_fn, calc_group_assignment, create_joint_groups, get_metrics, group_metrics, joint_metrics
label_desc: Use image node_id 6 for calling the TestGroupMetrics obj's underlying member method code with example usage: obj.test_metrics_correct() without return types