code: def getTimeStamp(self, obj: dict) -> int:
      if self.hasKeyAnnotate(obj):
          return self.getValueByKey(
              self.dataStoreKeys.TIMESTAMP_ANNOTATE, obj
          )
      if self.hasKeyRandom(obj):
          return self.getValueByKey(
              self.dataStoreKeys.TIMESTAMP_RANDOM, obj
          )
      return self.getValueByKey(self.dataStoreKeys.TIMESTAMP, obj)
  
imports: from typing import Dict, List
  from MONAILabelReviewerLib.DataStoreKeys import DataStoreKeys
  from MONAILabelReviewerLib.ImageData import ImageData
  from MONAILabelReviewerLib.MONAILabelReviewerEnum import Label
  from MONAILabelReviewerLib.SegmentationMeta import SegmentationMeta
label_desc: Use image node_id 6 for calling the JsonParser obj's underlying member method code with example usage: obj.getTimeStamp(obj) and returns: self, self, self