code: def test_init(self):
      with self.assertRaises(RuntimeError):
          CocoPanopticMetric()
  
file_path: mmdetection/tests/test_evaluation/test_metrics/test_coco_panoptic_metric.py
imports: import os
  import os.path
  import tempfile
  import unittest
  from copy import deepcopy
  import mmcv
  import numpy
  import torch
  from mmengine.fileio import dump
  from mmdet.evaluation import INSTANCE_OFFSET, CocoPanopticMetric
label_desc: Use image node_id 5 for calling the TestCocoPanopticMetric obj's underlying member method code with example usage: obj.test_init() without return types