From d9f2140df3f2f62fa7cf7b741ab7f95817af1ea0 Mon Sep 17 00:00:00 2001
From: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Date: Sat, 28 Dec 2024 13:17:15 +0100
Subject: [PATCH] Add ClassVar annotation for singleton patterns (#134135)

---
 homeassistant/components/cast/helpers.py     | 4 ++--
 homeassistant/components/yeelight/scanner.py | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/homeassistant/components/cast/helpers.py b/homeassistant/components/cast/helpers.py
index 228c69b65ec..8f4af197b8e 100644
--- a/homeassistant/components/cast/helpers.py
+++ b/homeassistant/components/cast/helpers.py
@@ -5,7 +5,7 @@ from __future__ import annotations
 import configparser
 from dataclasses import dataclass
 import logging
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, ClassVar
 from urllib.parse import urlparse
 
 import aiohttp
@@ -129,7 +129,7 @@ class ChromecastInfo:
 class ChromeCastZeroconf:
     """Class to hold a zeroconf instance."""
 
-    __zconf: zeroconf.HaZeroconf | None = None
+    __zconf: ClassVar[zeroconf.HaZeroconf | None] = None
 
     @classmethod
     def set_zeroconf(cls, zconf: zeroconf.HaZeroconf) -> None:
diff --git a/homeassistant/components/yeelight/scanner.py b/homeassistant/components/yeelight/scanner.py
index ac482504880..7e908396ff3 100644
--- a/homeassistant/components/yeelight/scanner.py
+++ b/homeassistant/components/yeelight/scanner.py
@@ -9,7 +9,7 @@ from datetime import datetime
 from functools import partial
 from ipaddress import IPv4Address
 import logging
-from typing import Self
+from typing import ClassVar, Self
 from urllib.parse import urlparse
 
 from async_upnp_client.search import SsdpSearchListener
@@ -44,11 +44,11 @@ def _set_future_if_not_done(future: asyncio.Future[None]) -> None:
 class YeelightScanner:
     """Scan for Yeelight devices."""
 
-    _scanner: Self | None = None
+    _scanner: ClassVar[Self | None] = None
 
     @classmethod
     @callback
-    def async_get(cls, hass: HomeAssistant) -> YeelightScanner:
+    def async_get(cls, hass: HomeAssistant) -> Self:
         """Get scanner instance."""
         if cls._scanner is None:
             cls._scanner = cls(hass)