From 052c3fcb6a3d2ba1b22b81daa3cadf9bc765eebf Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Wed, 27 Apr 2022 09:57:18 +0200
Subject: [PATCH] Use shorthand attributes in xiaomi_miio vacuum (#70848)

---
 .../components/xiaomi_miio/vacuum.py          | 21 +++++++------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/homeassistant/components/xiaomi_miio/vacuum.py b/homeassistant/components/xiaomi_miio/vacuum.py
index a144794ff93..6d398ff40b9 100644
--- a/homeassistant/components/xiaomi_miio/vacuum.py
+++ b/homeassistant/components/xiaomi_miio/vacuum.py
@@ -227,12 +227,12 @@ class MiroboVacuum(
         return self._state
 
     @property
-    def battery_level(self):
+    def battery_level(self) -> int:
         """Return the battery level of the vacuum cleaner."""
         return self.coordinator.data.status.battery
 
     @property
-    def fan_speed(self):
+    def fan_speed(self) -> str:
         """Return the fan speed of the vacuum cleaner."""
         speed = self.coordinator.data.status.fanspeed
         if speed in self.coordinator.data.fan_speeds_reverse:
@@ -240,16 +240,14 @@ class MiroboVacuum(
 
         _LOGGER.debug("Unable to find reverse for %s", speed)
 
-        return speed
+        return str(speed)
 
     @property
-    def fan_speed_list(self):
+    def fan_speed_list(self) -> list[str]:
         """Get the list of available fan speed steps of the vacuum cleaner."""
-        return (
-            list(self.coordinator.data.fan_speeds)
-            if self.coordinator.data.fan_speeds
-            else []
-        )
+        if speed_list := self.coordinator.data.fan_speeds:
+            return list(speed_list)
+        return []
 
     @property
     def timers(self):
@@ -276,11 +274,6 @@ class MiroboVacuum(
             attrs[ATTR_TIMERS] = self.timers
         return attrs
 
-    @property
-    def supported_features(self):
-        """Flag vacuum cleaner robot features that are supported."""
-        return self._attr_supported_features
-
     async def _try_command(self, mask_error, func, *args, **kwargs):
         """Call a vacuum command handling error messages."""
         try: