docstr: Test init htc RoI head.
code: def test_init(self, cfg_file):
      """Test init htc RoI head."""
      # Normal HTC RoI head
      roi_head_cfg = get_roi_head_cfg(cfg_file)
      roi_head = MODELS.build(roi_head_cfg)
      assert roi_head.with_bbox
      assert roi_head.with_mask
      assert roi_head.with_semantic
  
file_path: mmdetection/tests/test_models/test_roi_heads/test_htc_roi_head.py
imports: import unittest
  from unittest import TestCase
  import torch
  from parameterized import parameterized
  from mmdet.models.roi_heads import HybridTaskCascadeRoIHead
  from mmdet.registry import MODELS
  from mmdet.testing import demo_mm_inputs, demo_mm_proposals, get_roi_head_cfg
label_desc: Use image node_id 1 for calling the TestHTCRoIHead obj's underlying member method code with example usage: obj.test_init(cfg_file) without return types