code: def test_init(self):
      roi_head = MODELS.build(self.roi_head_cfg)
      self.assertTrue(roi_head.with_bbox)
  
file_path: mmdetection/tests/test_models/test_roi_heads/test_grid_roi_head.py
imports: import unittest
  from unittest import TestCase
  import torch
  from parameterized import parameterized
  from mmdet.registry import MODELS
  from mmdet.testing import demo_mm_inputs, demo_mm_proposals, get_roi_head_cfg
  from mmdet.utils import register_all_modules
label_desc: Use image node_id 2 for calling the TestGridRoIHead obj's underlying member method code with example usage: obj.test_init() without return types