Eric Severance d912e91e81
Periodically attempt to discover new wemo devices (#44361)
* Periodically attempt to discover new wemo devices

* Set self._stop=None after stopping the periodic discovery task

* Use the async_fire_time_changed test helper to simplify test_discovery

* Stop the pywemo registry outside of the async loop

* Add a comment describing why async_fire_time_changed is used
2020-12-24 12:25:14 +01:00
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