code: def get_prt_fmt(self, alt=False):
          
          # prt_fmt = [ #                                                        rcnt
          #     '{GO} # {NS}  L{level:02} D{depth:02} {GO_name}',
          #     '{GO} # {NS} {dcnt:6,} L{level:02} D{depth:02} {D1:5} {GO_name}']
          prt_fmt = []
          if alt:
              prt_fmt.append('{GO}{alt:1}')
          else:
              prt_fmt.append('{GO}')
          prt_fmt.append('# {NS}')
          if 'dcnt' in self.prt_flds:
              prt_fmt.append('{dcnt:5}')
          if 'childcnt' in self.prt_flds:
              prt_fmt.append('{childcnt:3}')
          if 'tcnt' in self.prt_flds:
              prt_fmt.append("{tcnt:7,}")
          if 'tfreq' in self.prt_flds:
              prt_fmt.append("{tfreq:8.6f}")
          if 'tinfo' in self.prt_flds:
              prt_fmt.append("{tinfo:5.2f}")
          prt_fmt.append('L{level:02} D{depth:02}')
          if self.relationships:
              prt_fmt.append('R{reldepth:02}')
          if 'D1' in self.prt_flds:
              prt_fmt.append('{D1:5}')
          if 'REL' in self.prt_flds:
              prt_fmt.append('{REL}')
              prt_fmt.append('{rel}')
          prt_fmt.append('{GO_name}')
          return " ".join(prt_fmt)
docs: Return the format for printing GO named tuples and their related information.