code: def getIdxTotalApproved(self) -> str:
      return self.idxTotalApproved
  
file_path: MONAILabel/plugins/slicer/MONAILabelReviewer/MONAILabelReviewerLib/ImageDataStatistics.py
label_desc: Use image node_id 5 for calling the ImageDataStatistics obj's underlying member method code with example usage: obj.getIdxTotalApproved() and returns: self