code: def _init_w_godag(self):
          
          nts = []
          ntobj = cx.namedtuple('ntanno', self.flds + ['NS'])
          for itemid, gos in self.id2gos.items():
              for goid in gos:
                  goobj = self.godag.get(goid, '')
                  nts.append(ntobj(
                      DB_ID=itemid,
                      GO_ID=goid,
                      NS=NAMESPACE2NS[goobj.namespace] if goobj else ''))
          return nts
docs: Get a list of namedtuples, one for each annotation.