code: def getRnaQuantMetadata(self):
          
          rnaQuantId = self.getLocalId()
          with self._db as dataSource:
              rnaQuantReturned = dataSource.getRnaQuantificationById(
                  rnaQuantId)
          self.addRnaQuantMetadata(rnaQuantReturned)
docs: input is tab file with no header.  Columns are:
          Id, annotations, description, name, readGroupId
          where annotation is a comma separated list