docs: def _notify_fn(self):
          """The notify thread function."""
          self._notifyrunning = True
          while self._notifyrunning:
              try:
                  with IHCController._mutex:
                      # Are there are any new ids to be added?
                      if self._newnotifyids:
                          self.client.enable_runtime_notifications(
                              self._newnotifyids)
                          self._newnotifyids = []
  
                  changes = self.client.wait_for_resource_value_changes()
                  if changes is False:
                      self.re_authenticate(True)
                      continue
                  for ihcid in changes:
                      value = changes[ihcid]
                      if ihcid in self._ihcevents:
                          for callback in self._ihcevents[ihcid]:
                              callback(ihcid, value)
              except Exception as exp:
                  self.re_authenticate(True)