Type error in entities/appliance/fan.py

[gapple]

I'm getting a large number of errors appearing in the logs

Error doing job: Task exception was never retrieved

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 899, in _async_registry_updated
    await self.platform.async_add_entities([self])
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 428, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 673, in _async_add_entity
    await entity.add_to_platform_finish()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 776, in add_to_platform_finish
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 532, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 570, in _async_write_ha_state
    state = self._stringify_state(available)
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 538, in _stringify_state
    if (state := self.state) is None:
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 969, in state
    if (is_on := self.is_on) is None:
  File "/config/custom_components/mila/entities/appliance/fan.py", line 66, in is_on
    return self.speed is not None and self.speed > 0
  File "/config/custom_components/mila/entities/appliance/fan.py", line 57, in speed
    return sensor["latest"]["value"] if sensor else None
TypeError: 'NoneType' object is not subscriptable

The relevant code:

ha-mila/custom_components/mila/entities/appliance/fan.py

Lines 53 to 57 in c097220

	@property
	def speed(self) -> float:
	sensors: List = self.device.get_value("sensors")
	sensor = next((i for i in sensors if i["kind"] == ApplianceSensorKind.FanSpeed), None)
	return sensor["latest"]["value"] if sensor else None