Use entity class attributes for blinkt (#52893)

* Use entity class attributes for blinkt

* tweak

* tweak

* remove redundant properties

homeassistant/components/blinkt/light.py

@@ -41,77 +41,43 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
 class BlinktLight(LightEntity):
     """Representation of a Blinkt! Light."""
 
+    _attr_supported_features = SUPPORT_BLINKT
+    _attr_should_poll = False
+    _attr_assumed_state = True
+
     def __init__(self, blinkt, name, index):
         """Initialize a Blinkt Light.
 
         Default brightness and white color.
         """
         self._blinkt = blinkt
-        self._name = f"{name}_{index}"
+        self._attr_name = f"{name}_{index}"
         self._index = index
-        self._is_on = False
-        self._brightness = 255
-        self._hs_color = [0, 0]
-
-    @property
-    def name(self):
-        """Return the display name of this light."""
-        return self._name
-
-    @property
-    def brightness(self):
-        """Read back the brightness of the light.
-
-        Returns integer in the range of 1-255.
-        """
-        return self._brightness
-
-    @property
-    def hs_color(self):
-        """Read back the color of the light."""
-        return self._hs_color
-
-    @property
-    def supported_features(self):
-        """Flag supported features."""
-        return SUPPORT_BLINKT
-
-    @property
-    def is_on(self):
-        """Return true if light is on."""
-        return self._is_on
-
-    @property
-    def should_poll(self):
-        """Return if we should poll this device."""
-        return False
-
-    @property
-    def assumed_state(self) -> bool:
-        """Return True if unable to access real state of the entity."""
-        return True
+        self._attr_is_on = False
+        self._attr_brightness = 255
+        self._attr_hs_color = [0, 0]
 
     def turn_on(self, **kwargs):
         """Instruct the light to turn on and set correct brightness & color."""
         if ATTR_HS_COLOR in kwargs:
-            self._hs_color = kwargs[ATTR_HS_COLOR]
+            self._attr_hs_color = kwargs[ATTR_HS_COLOR]
         if ATTR_BRIGHTNESS in kwargs:
-            self._brightness = kwargs[ATTR_BRIGHTNESS]
+            self._attr_brightness = kwargs[ATTR_BRIGHTNESS]
 
-        percent_bright = self._brightness / 255
-        rgb_color = color_util.color_hs_to_RGB(*self._hs_color)
+        percent_bright = self.brightness / 255
+        rgb_color = color_util.color_hs_to_RGB(*self.hs_color)
         self._blinkt.set_pixel(
             self._index, rgb_color[0], rgb_color[1], rgb_color[2], percent_bright
         )
 
         self._blinkt.show()
 
-        self._is_on = True
+        self._attr_is_on = True
         self.schedule_update_ha_state()
 
     def turn_off(self, **kwargs):
         """Instruct the light to turn off."""
         self._blinkt.set_pixel(self._index, 0, 0, 0, 0)
         self._blinkt.show()
-        self._is_on = False
+        self._attr_is_on = False
         self.schedule_update_ha_state()