code: def getImageDataIds(self) -> List[str]:
      return [*self.nameToImageData.keys()]
  
imports: import datetime
  import logging
  from typing import Dict, List
  from MONAILabelReviewerLib.ImageData import ImageData
  from MONAILabelReviewerLib.MONAILabelReviewerEnum import Level
label_desc: Use image node_id 8 for calling the ImageDataExtractor obj's underlying member method code with example usage: obj.getImageDataIds() and returns: list