code: def test_getImageDataIds(self):
      ids = self.imageDataExtractor.getImageDataIds()
      expectedIds = [*self.nameToImageData.keys()]
      containsAll = all(id in ids for id in expectedIds)
      self.assertEqual(True, containsAll)
  
imports: import sys
  import unittest
  from typing import Dict, List
  from MONAILabelReviewerLib.ImageData import ImageData
  from MONAILabelReviewerLib.ImageDataExtractor import ImageDataExtractor
  from MONAILabelReviewerLib.MONAILabelReviewerEnum import Level, SegStatus
label_desc: Use image node_id 5 for calling the ImageDataExtractorTest obj's underlying member method code with example usage: obj.test_getImageDataIds() without return types