code: def runGetFeature(self, id_):
          
          compoundId = datamodel.FeatureCompoundId.parse(id_)
          dataset = self.getDataRepository().getDataset(compoundId.dataset_id)
          featureSet = dataset.getFeatureSet(compoundId.feature_set_id)
          gaFeature = featureSet.getFeature(compoundId)
          jsonString = protocol.toJson(gaFeature)
          return jsonString
docs: Returns JSON string of the feature object corresponding to
          the feature compoundID passed in.