code: def test_transform(self):
      sys.modules["panopticapi"] = MagicMock()
      sys.modules["panopticapi.utils"] = MagicMock()
      from mmdet.datasets.transforms import LoadPanopticAnnotations
  
      mock_rgb2id = Mock(return_value=self.seg_map)
      with patch("panopticapi.utils.rgb2id", mock_rgb2id):
          # test with all False
          transform = LoadPanopticAnnotations(
              with_bbox=False,
              with_label=False,
              with_mask=False,
              with_seg=False,
          )
          results = transform(copy.deepcopy(self.results))
          self.assertDictEqual(results, self.results)
          # test with with_mask=True
          transform = LoadPanopticAnnotations(
              with_bbox=False,
              with_label=False,
              with_mask=True,
              with_seg=False,
          )
          results = transform(copy.deepcopy(self.results))
          self.assertTrue(
              (results["gt_masks"].masks == self.gt_mask.masks).all()
          )
  
          # test with with_seg=True
          transform = LoadPanopticAnnotations(
              with_bbox=False,
              with_label=False,
              with_mask=False,
              with_seg=True,
          )
          results = transform(copy.deepcopy(self.results))
          self.assertNotIn("gt_masks", results)
          self.assertTrue(
              (results["gt_seg_map"] == self.gt_seg_map).all()
          )
  
          # test with all True
          transform = LoadPanopticAnnotations(
              with_bbox=True,
              with_label=True,
              with_mask=True,
              with_seg=True,
              box_type=None,
          )
          results = transform(copy.deepcopy(self.results))
          self.assertTrue(
              (results["gt_masks"].masks == self.gt_mask.masks).all()
          )
          self.assertTrue(
              (results["gt_bboxes"] == self.gt_bboxes).all()
          )
          self.assertTrue(
              (
                  results["gt_bboxes_labels"] == self.gt_bboxes_labels
              ).all()
          )
          self.assertTrue(
              (results["gt_ignore_flags"] == self.gt_ignore_flags).all()
          )
          self.assertTrue(
              (results["gt_seg_map"] == self.gt_seg_map).all()
          )
  
imports: import copy
  import os
  import os.path
  import sys
  import unittest
  from unittest.mock import MagicMock, Mock, patch
  import mmcv
  import numpy
  from mmdet.datasets.transforms import FilterAnnotations, LoadAnnotations, LoadEmptyAnnotations, LoadImageFromNDArray, LoadMultiChannelImageFromFiles, LoadProposals, LoadTrackAnnotations
  from mmdet.evaluation import INSTANCE_OFFSET
  from mmdet.structures.mask import BitmapMasks, PolygonMasks
label_desc: Use image node_id 4 for calling the TestLoadPanopticAnnotations obj's underlying member method code with example usage: obj.test_transform() without return types