code: def __init_prt_flds(self):
          
          prt_flds = ['NS', 'level', 'depth']
          if self.relationships:
              prt_flds.append('reldepth')
          prt_flds.extend(['GO', 'alt', 'GO_name'])
          if 'dcnt' in self.kw_elems:
              prt_flds.append('dcnt')
          if 'D1' in self.kw_elems:
              prt_flds.append('D1')
          if 'tcnt' in self.kw_elems:
              prt_flds.append('tcnt')
              prt_flds.append('tfreq')
              prt_flds.append('tinfo')
          if self.relationships:
              prt_flds.append('childcnt')
              prt_flds.append('REL')
              prt_flds.append('REL_short')
              prt_flds.append('rel')
          prt_flds.append('id')
          return prt_flds
docs: Return the print fields in the go2nt namedtuple.