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Define sensor entity attributes as class variables (#50942)

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Franck Nijhof 2021-05-22 18:17:35 +02:00 committed by GitHub
parent 38d095aa18
commit f7bc456bd2
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1 changed files with 5 additions and 2 deletions
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7
homeassistant/components/sensor/__init__.py
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@ -96,15 +96,18 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
class SensorEntity(Entity): class SensorEntity(Entity):
"""Base class for sensor entities.""" """Base class for sensor entities."""
_attr_state_class: str | None = None
_attr_last_reset: datetime | None = None
@property @property
def state_class(self) -> str | None: def state_class(self) -> str | None:
"""Return the state class of this entity, from STATE_CLASSES, if any.""" """Return the state class of this entity, from STATE_CLASSES, if any."""
return None return self._attr_state_class
@property @property
def last_reset(self) -> datetime | None: def last_reset(self) -> datetime | None:
"""Return the time when the sensor was last reset, if any.""" """Return the time when the sensor was last reset, if any."""
return None return self._attr_last_reset
@property @property
def capability_attributes(self) -> Mapping[str, Any] | None: def capability_attributes(self) -> Mapping[str, Any] | None: