NoneType' object has no attribute 'type' after long runtime

[oggust]

This happens every once in a while for me, recently. I run prometheus-dyson (https://github.com/seanrees/prometheus-dyson)
but it doesn't seem like that's very involved here (eg the code doesn't make it to calling the callback).

Adding a None check seems simple but might just paper it over, I don't know why info would be None there.

This is after several days of runtime:

Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1009, in _bootstrap_inner
    self.run()
  File "/home/aug/.local/lib/python3.10/site-packages/zeroconf/_services/browser.py", line 532, in run
    self._fire_service_state_changed_event(event)
  File "/home/aug/.local/lib/python3.10/site-packages/zeroconf/_services/browser.py", line 416, in _fire_service_state_changed_event
    self._service_state_changed.fire(
  File "/home/aug/.local/lib/python3.10/site-packages/zeroconf/_services/__init__.py", line 55, in fire
    h(**kwargs)
  File "/home/aug/.local/lib/python3.10/site-packages/zeroconf/_services/browser.py", line 177, in on_change
    getattr(listener, _ON_CHANGE_DISPATCH[state_change])(zeroconf, service_type, name)
  File "/home/aug/.local/lib/python3.10/site-packages/libdyson/discovery.py", line 81, in add_service
    self._dyson_discovery.device_discovered(info)
  File "/home/aug/.local/lib/python3.10/site-packages/libdyson/discovery.py", line 37, in device_discovered
    if info.type == TYPE_DYSON_360_EYE:
AttributeError: 'NoneType' object has no attribute 'type'