Use native_value property instead of _attr_native_value in the Brother integration (home-assistant#156878)

Author: bieniu

homeassistant/components/brother/sensor.py

@@ -17,7 +17,7 @@
     SensorStateClass,
 )
 from homeassistant.const import PERCENTAGE, EntityCategory
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry as er
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.typing import StateType
@@ -345,12 +345,10 @@ def __init__(
         """Initialize."""
         super().__init__(coordinator)
 
-        self._attr_native_value = description.value(coordinator.data)
         self._attr_unique_id = f"{coordinator.brother.serial.lower()}_{description.key}"
         self.entity_description = description
 
-    @callback
-    def _handle_coordinator_update(self) -> None:
-        """Handle updated data from the coordinator."""
-        self._attr_native_value = self.entity_description.value(self.coordinator.data)
-        self.async_write_ha_state()
+    @property
+    def native_value(self) -> StateType | datetime:
+        """Return the native value of the sensor."""
+        return self.entity_description.value(self.coordinator.data)