After upgrading to core-2021.12.0, my Kuna cameras would no longer stream. I tried deleting and re-adding the integration, but I'm still getting the same error in the logs:

Logger: homeassistant.components.camera
Source: custom_components/kuna/camera.py:100
Integration: Camera (documentation, issues)
First occurred: 9:50:49 PM (2 occurrences)
Last logged: 9:50:49 PM

kuna: Error on device update!
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 431, in _async_add_entity
await entity.async_device_update(warning=False)
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 684, in async_device_update
await task
File "/usr/local/lib/python3.9/concurrent/futures/thread.py", line 52, in run
result = self.fn(*self.args, **self.kwargs)
File "/config/custom_components/kuna/camera.py", line 100, in update
self.is_streaming = True
AttributeError: can't set attribute