code: def wr_txt_nts(self, fout_txt, desc2nts, prtfmt=None):
          
          with open(fout_txt, 'w') as prt:
              summary_dct = self._prt_txt_desc2nts(prt, desc2nts, prtfmt)
              if summary_dct:
                  print(self.sortobj.grprobj.fmtsum.format(
                      ACTION="WROTE:", FILE=fout_txt, **summary_dct))
              else:
                  print("  WROTE: {TXT}".format(TXT=fout_txt))
docs: Write grouped and sorted GO IDs to GOs.