code: def getFeature(self, compoundId):
          
          if compoundId is None:
              raise exceptions.ObjectWithIdNotFoundException(compoundId)
          randomNumberGenerator = random.Random()
          randomNumberGenerator.seed(self._randomSeed)
          feature = self._generateSimulatedFeature(randomNumberGenerator)
          feature.id = str(compoundId)
          feature.parent_id = ""  # TODO: Test with nonempty parentIDs?
          return feature
docs: Fetches a simulated feature by ID.
  
          :param compoundId: any non-null string
          :return: A simulated feature with id set to the same value as the
              passed-in compoundId.
          ":raises: exceptions.ObjectWithIdNotFoundException if None is passed
              in for the compoundId.