code: def parse_subdomain_missing_zonefiles_record(cls, rec):
          
          txt_entry = rec['txt']
          if isinstance(txt_entry, list):
              raise ParseError("TXT entry too long for a missing zone file list")
  
          try:
              return [int(i) for i in txt_entry.split(',')] if txt_entry is not None and len(txt_entry) > 0 else []
          except ValueError:
              raise ParseError('Invalid integers')
docs: Parse a missing-zonefiles vector given by the domain.
          Returns the list of zone file indexes on success
          Raises ParseError on unparseable records