code: def _create_record(self, rtype, name, content):
          
          found = self._list_records(rtype=rtype, name=name, content=content)
          if found:
              return True
  
          record = self._create_request_record(None, rtype, name, content,
                                               self._get_lexicon_option('ttl'),
                                               self._get_lexicon_option('priority'))
  
          self._request_add_dns_record(record)
          return True
docs: Creates a new unique record