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Define sensor entity attributes as class variables (#50942)
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@ -96,15 +96,18 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
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class SensorEntity(Entity):
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"""Base class for sensor entities."""
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_attr_state_class: str | None = None
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_attr_last_reset: datetime | None = None
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@property
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def state_class(self) -> str | None:
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"""Return the state class of this entity, from STATE_CLASSES, if any."""
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return None
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return self._attr_state_class
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@property
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def last_reset(self) -> datetime | None:
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"""Return the time when the sensor was last reset, if any."""
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return None
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return self._attr_last_reset
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@property
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def capability_attributes(self) -> Mapping[str, Any] | None:
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