docs: def delete(self):
          """ Delete this node from config files """
          cfg_file = "/etc/nago/nago.ini"
          config = ConfigParser.ConfigParser()
          config.read(cfg_file)
          result = {}
          token = self.data.pop("token", self.token)
          if token not in config.sections():
              raise Exception("Cannot find node in config. Delete aborted.")
          config.remove_section(self.token)
          with open(cfg_file, 'w') as f:
              return config.write(f)