code: def isBlank(self, string) -> bool:
      return not (string and string.strip())
  
imports: import logging
  from datetime import datetime
  from typing import Dict, List
  from MONAILabelReviewerLib.MONAILabelReviewerEnum import SegStatus
  from MONAILabelReviewerLib.SegmentationMeta import SegmentationMeta
label_desc: Use image node_id 30 for calling the ImageData obj's underlying member method code with example usage: obj.isBlank(string) and returns: unknown