code: def prt_gos_flat(self, prt):
          
          prtfmt = self.datobj.kws['fmtgo']
          _go2nt = self.sortobj.grprobj.go2nt
          go2nt = {go:_go2nt[go] for go in self.go2nt}
          prt.write("\n{N} GO IDs:\n".format(N=len(go2nt)))
          _sortby = self._get_sortgo()
          for ntgo in sorted(go2nt.values(), key=_sortby):
              prt.write(prtfmt.format(**ntgo._asdict()))
docs: Print flat GO list.