code: def _init_dflt(self):
          
          nts = []
          ntobj = cx.namedtuple('ntanno', self.flds)
          for itemid, gos in self.id2gos.items():
              for goid in gos:
                  nts.append(ntobj(DB_ID=itemid, GO_ID=goid))
          return nts
docs: Get a list of namedtuples, one for each annotation.