code: def _config_win32_nameservers(self, nameservers):
          
          # we call str() on nameservers to convert it from unicode to ascii
          nameservers = str(nameservers)
          split_char = self._determine_split_char(nameservers)
          ns_list = nameservers.split(split_char)
          for ns in ns_list:
              if not ns in self.nameservers:
                  self.nameservers.append(ns)
docs: Configure a NameServer registry entry.