code: def _init_go2nt_aug(self, go2nt):
          
          go2obj = self.gosubdag.go2obj
          # Get alt GO IDs
          go2nt_aug = {}
          # NOW
          for goid_usr, nt_usr in go2nt.items():
              goobj = go2obj[goid_usr]
              if goobj.alt_ids:
                  alts = set(goobj.alt_ids)
                  alts.add(goobj.id)
                  for goid_alt in alts:
                      if goid_alt not in go2nt:
                          go2nt_aug[goid_alt] = nt_usr
          # WAS
          # Add alt GO IDs to go2nt
          for goid, gont in go2nt_aug.items():
              go2nt[goid] = gont
          return go2nt
docs: Augment go2nt with GO ID key to account for alt GO IDs.