diff --git a/homeassistant/components/aemet/sensor.py b/homeassistant/components/aemet/sensor.py
index de8e9aa4828..f7aa6b35893 100644
--- a/homeassistant/components/aemet/sensor.py
+++ b/homeassistant/components/aemet/sensor.py
@@ -262,7 +262,7 @@ class AbstractAemetSensor(CoordinatorEntity[WeatherUpdateCoordinator], SensorEnt
         unique_id,
         coordinator: WeatherUpdateCoordinator,
         description: SensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
         self.entity_description = description
@@ -279,7 +279,7 @@ class AemetSensor(AbstractAemetSensor):
         unique_id_prefix,
         weather_coordinator: WeatherUpdateCoordinator,
         description: SensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(
             name=name,
@@ -304,7 +304,7 @@ class AemetForecastSensor(AbstractAemetSensor):
         weather_coordinator: WeatherUpdateCoordinator,
         forecast_mode,
         description: SensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(
             name=name,
diff --git a/homeassistant/components/aemet/weather.py b/homeassistant/components/aemet/weather.py
index 3753d8e33ff..aba5a2781d0 100644
--- a/homeassistant/components/aemet/weather.py
+++ b/homeassistant/components/aemet/weather.py
@@ -102,7 +102,7 @@ class AemetWeather(CoordinatorEntity[WeatherUpdateCoordinator], WeatherEntity):
         unique_id,
         coordinator: WeatherUpdateCoordinator,
         forecast_mode,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
         self._forecast_mode = forecast_mode
diff --git a/homeassistant/components/august/binary_sensor.py b/homeassistant/components/august/binary_sensor.py
index 89e05c5057e..66b7d548125 100644
--- a/homeassistant/components/august/binary_sensor.py
+++ b/homeassistant/components/august/binary_sensor.py
@@ -195,7 +195,9 @@ class AugustDoorBinarySensor(AugustEntityMixin, BinarySensorEntity):
 
     _attr_device_class = BinarySensorDeviceClass.DOOR
 
-    def __init__(self, data, device, description: BinarySensorEntityDescription):
+    def __init__(
+        self, data, device, description: BinarySensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(data, device)
         self.entity_description = description
@@ -235,7 +237,9 @@ class AugustDoorbellBinarySensor(AugustEntityMixin, BinarySensorEntity):
 
     entity_description: AugustBinarySensorEntityDescription
 
-    def __init__(self, data, device, description: AugustBinarySensorEntityDescription):
+    def __init__(
+        self, data, device, description: AugustBinarySensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(data, device)
         self.entity_description = description
diff --git a/homeassistant/components/august/sensor.py b/homeassistant/components/august/sensor.py
index af79cad459e..b908d68caa0 100644
--- a/homeassistant/components/august/sensor.py
+++ b/homeassistant/components/august/sensor.py
@@ -268,7 +268,7 @@ class AugustBatterySensor(AugustEntityMixin, SensorEntity, Generic[_T]):
         device,
         old_device,
         description: AugustSensorEntityDescription[_T],
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(data, device)
         self.entity_description = description
diff --git a/homeassistant/components/bbox/sensor.py b/homeassistant/components/bbox/sensor.py
index 4cc77a4b780..6dcc89dca02 100644
--- a/homeassistant/components/bbox/sensor.py
+++ b/homeassistant/components/bbox/sensor.py
@@ -130,7 +130,7 @@ class BboxUptimeSensor(SensorEntity):
     _attr_attribution = ATTRIBUTION
     _attr_device_class = SensorDeviceClass.TIMESTAMP
 
-    def __init__(self, bbox_data, name, description: SensorEntityDescription):
+    def __init__(self, bbox_data, name, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = f"{name} {description.name}"
@@ -149,7 +149,7 @@ class BboxSensor(SensorEntity):
 
     _attr_attribution = ATTRIBUTION
 
-    def __init__(self, bbox_data, name, description: SensorEntityDescription):
+    def __init__(self, bbox_data, name, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = f"{name} {description.name}"
diff --git a/homeassistant/components/blink/binary_sensor.py b/homeassistant/components/blink/binary_sensor.py
index ddcf58deb6f..7f11e9646d2 100644
--- a/homeassistant/components/blink/binary_sensor.py
+++ b/homeassistant/components/blink/binary_sensor.py
@@ -55,7 +55,9 @@ async def async_setup_entry(
 class BlinkBinarySensor(BinarySensorEntity):
     """Representation of a Blink binary sensor."""
 
-    def __init__(self, data, camera, description: BinarySensorEntityDescription):
+    def __init__(
+        self, data, camera, description: BinarySensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         self.data = data
         self.entity_description = description
diff --git a/homeassistant/components/blink/sensor.py b/homeassistant/components/blink/sensor.py
index bc52f484243..34b7eb0d33d 100644
--- a/homeassistant/components/blink/sensor.py
+++ b/homeassistant/components/blink/sensor.py
@@ -53,7 +53,7 @@ async def async_setup_entry(
 class BlinkSensor(SensorEntity):
     """A Blink camera sensor."""
 
-    def __init__(self, data, camera, description: SensorEntityDescription):
+    def __init__(self, data, camera, description: SensorEntityDescription) -> None:
         """Initialize sensors from Blink camera."""
         self.entity_description = description
         self._attr_name = f"{DOMAIN} {camera} {description.name}"
diff --git a/homeassistant/components/broadlink/sensor.py b/homeassistant/components/broadlink/sensor.py
index 2527b48e29c..33f1badcc1b 100644
--- a/homeassistant/components/broadlink/sensor.py
+++ b/homeassistant/components/broadlink/sensor.py
@@ -114,7 +114,7 @@ class BroadlinkSensor(BroadlinkEntity, SensorEntity):
 
     _attr_has_entity_name = True
 
-    def __init__(self, device, description: SensorEntityDescription):
+    def __init__(self, device, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         super().__init__(device)
         self.entity_description = description
diff --git a/homeassistant/components/buienradar/sensor.py b/homeassistant/components/buienradar/sensor.py
index ae762efefe7..b7061abeab3 100644
--- a/homeassistant/components/buienradar/sensor.py
+++ b/homeassistant/components/buienradar/sensor.py
@@ -692,7 +692,9 @@ class BrSensor(SensorEntity):
     _attr_entity_registry_enabled_default = False
     _attr_should_poll = False
 
-    def __init__(self, client_name, coordinates, description: SensorEntityDescription):
+    def __init__(
+        self, client_name, coordinates, description: SensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = f"{client_name} {description.name}"
diff --git a/homeassistant/components/comed_hourly_pricing/sensor.py b/homeassistant/components/comed_hourly_pricing/sensor.py
index 0e26b3406b8..3336f5b79f8 100644
--- a/homeassistant/components/comed_hourly_pricing/sensor.py
+++ b/homeassistant/components/comed_hourly_pricing/sensor.py
@@ -91,7 +91,9 @@ class ComedHourlyPricingSensor(SensorEntity):
 
     _attr_attribution = "Data provided by ComEd Hourly Pricing service"
 
-    def __init__(self, websession, offset, name, description: SensorEntityDescription):
+    def __init__(
+        self, websession, offset, name, description: SensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.websession = websession
diff --git a/homeassistant/components/daikin/switch.py b/homeassistant/components/daikin/switch.py
index a7c8b6549e4..68cd4fdc590 100644
--- a/homeassistant/components/daikin/switch.py
+++ b/homeassistant/components/daikin/switch.py
@@ -59,7 +59,7 @@ class DaikinZoneSwitch(SwitchEntity):
     _attr_icon = ZONE_ICON
     _attr_has_entity_name = True
 
-    def __init__(self, daikin_api: DaikinApi, zone_id):
+    def __init__(self, daikin_api: DaikinApi, zone_id) -> None:
         """Initialize the zone."""
         self._api = daikin_api
         self._zone_id = zone_id
diff --git a/homeassistant/components/darksky/sensor.py b/homeassistant/components/darksky/sensor.py
index e912eb40115..ef1ef0466d4 100644
--- a/homeassistant/components/darksky/sensor.py
+++ b/homeassistant/components/darksky/sensor.py
@@ -651,7 +651,7 @@ class DarkSkySensor(SensorEntity):
         name,
         forecast_day=None,
         forecast_hour=None,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.forecast_data = forecast_data
@@ -794,7 +794,7 @@ class DarkSkyAlertSensor(SensorEntity):
 
     def __init__(
         self, forecast_data, description: DarkskySensorEntityDescription, name
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.forecast_data = forecast_data
diff --git a/homeassistant/components/discogs/sensor.py b/homeassistant/components/discogs/sensor.py
index 5e2d4bfa770..e6a46ac535f 100644
--- a/homeassistant/components/discogs/sensor.py
+++ b/homeassistant/components/discogs/sensor.py
@@ -106,7 +106,9 @@ class DiscogsSensor(SensorEntity):
 
     _attr_attribution = "Data provided by Discogs"
 
-    def __init__(self, discogs_data, name, description: SensorEntityDescription):
+    def __init__(
+        self, discogs_data, name, description: SensorEntityDescription
+    ) -> None:
         """Initialize the Discogs sensor."""
         self.entity_description = description
         self._discogs_data = discogs_data
diff --git a/homeassistant/components/dovado/sensor.py b/homeassistant/components/dovado/sensor.py
index 92b35af9d51..f84261de44b 100644
--- a/homeassistant/components/dovado/sensor.py
+++ b/homeassistant/components/dovado/sensor.py
@@ -110,7 +110,7 @@ class DovadoSensor(SensorEntity):
 
     entity_description: DovadoSensorEntityDescription
 
-    def __init__(self, data, description: DovadoSensorEntityDescription):
+    def __init__(self, data, description: DovadoSensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._data = data
diff --git a/homeassistant/components/dwd_weather_warnings/sensor.py b/homeassistant/components/dwd_weather_warnings/sensor.py
index 30a258875d5..531eb1b3707 100644
--- a/homeassistant/components/dwd_weather_warnings/sensor.py
+++ b/homeassistant/components/dwd_weather_warnings/sensor.py
@@ -113,7 +113,7 @@ class DwdWeatherWarningsSensor(SensorEntity):
         api,
         name,
         description: SensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize a DWD-Weather-Warnings sensor."""
         self._api = api
         self.entity_description = description
diff --git a/homeassistant/components/ebox/sensor.py b/homeassistant/components/ebox/sensor.py
index 91510b3fbc0..aaa8c5ceb0c 100644
--- a/homeassistant/components/ebox/sensor.py
+++ b/homeassistant/components/ebox/sensor.py
@@ -188,7 +188,7 @@ class EBoxSensor(SensorEntity):
         ebox_data,
         description: SensorEntityDescription,
         name,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = f"{name} {description.name}"
diff --git a/homeassistant/components/ecobee/sensor.py b/homeassistant/components/ecobee/sensor.py
index b9d61742838..90d4ba4202e 100644
--- a/homeassistant/components/ecobee/sensor.py
+++ b/homeassistant/components/ecobee/sensor.py
@@ -112,7 +112,7 @@ class EcobeeSensor(SensorEntity):
         sensor_name,
         sensor_index,
         description: EcobeeSensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.data = data
diff --git a/homeassistant/components/econet/binary_sensor.py b/homeassistant/components/econet/binary_sensor.py
index b869c3fb135..2a54a45eba2 100644
--- a/homeassistant/components/econet/binary_sensor.py
+++ b/homeassistant/components/econet/binary_sensor.py
@@ -60,7 +60,9 @@ async def async_setup_entry(
 class EcoNetBinarySensor(EcoNetEntity, BinarySensorEntity):
     """Define a Econet binary sensor."""
 
-    def __init__(self, econet_device, description: BinarySensorEntityDescription):
+    def __init__(
+        self, econet_device, description: BinarySensorEntityDescription
+    ) -> None:
         """Initialize."""
         super().__init__(econet_device)
         self.entity_description = description
diff --git a/homeassistant/components/enocean/sensor.py b/homeassistant/components/enocean/sensor.py
index 702b721ab09..ae2110b3174 100644
--- a/homeassistant/components/enocean/sensor.py
+++ b/homeassistant/components/enocean/sensor.py
@@ -154,7 +154,9 @@ def setup_platform(
 class EnOceanSensor(EnOceanEntity, RestoreEntity, SensorEntity):
     """Representation of an  EnOcean sensor device such as a power meter."""
 
-    def __init__(self, dev_id, dev_name, description: EnOceanSensorEntityDescription):
+    def __init__(
+        self, dev_id, dev_name, description: EnOceanSensorEntityDescription
+    ) -> None:
         """Initialize the EnOcean sensor device."""
         super().__init__(dev_id, dev_name)
         self.entity_description = description
@@ -223,7 +225,7 @@ class EnOceanTemperatureSensor(EnOceanSensor):
         scale_max,
         range_from,
         range_to,
-    ):
+    ) -> None:
         """Initialize the EnOcean temperature sensor device."""
         super().__init__(dev_id, dev_name, description)
         self._scale_min = scale_min
diff --git a/homeassistant/components/faa_delays/binary_sensor.py b/homeassistant/components/faa_delays/binary_sensor.py
index f085651c460..bc09a604cd6 100644
--- a/homeassistant/components/faa_delays/binary_sensor.py
+++ b/homeassistant/components/faa_delays/binary_sensor.py
@@ -34,7 +34,7 @@ class FAABinarySensor(CoordinatorEntity, BinarySensorEntity):
 
     def __init__(
         self, coordinator, entry_id, description: BinarySensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
         self.entity_description = description
diff --git a/homeassistant/components/fido/sensor.py b/homeassistant/components/fido/sensor.py
index 0d2d6d3a0de..9112351ce06 100644
--- a/homeassistant/components/fido/sensor.py
+++ b/homeassistant/components/fido/sensor.py
@@ -214,7 +214,9 @@ async def async_setup_platform(
 class FidoSensor(SensorEntity):
     """Implementation of a Fido sensor."""
 
-    def __init__(self, fido_data, name, number, description: SensorEntityDescription):
+    def __init__(
+        self, fido_data, name, number, description: SensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.fido_data = fido_data
diff --git a/homeassistant/components/fleetgo/device_tracker.py b/homeassistant/components/fleetgo/device_tracker.py
index c901ccce3e7..e736419ce29 100644
--- a/homeassistant/components/fleetgo/device_tracker.py
+++ b/homeassistant/components/fleetgo/device_tracker.py
@@ -53,7 +53,7 @@ def setup_scanner(
 class FleetGoDeviceScanner:
     """Define a scanner for the FleetGO platform."""
 
-    def __init__(self, config, see: SeeCallback):
+    def __init__(self, config, see: SeeCallback) -> None:
         """Initialize FleetGoDeviceScanner."""
         self._include = config.get(CONF_INCLUDE)
         self._see = see
diff --git a/homeassistant/components/growatt_server/sensor.py b/homeassistant/components/growatt_server/sensor.py
index e84ecb0e8b8..f4150068399 100644
--- a/homeassistant/components/growatt_server/sensor.py
+++ b/homeassistant/components/growatt_server/sensor.py
@@ -142,7 +142,7 @@ class GrowattInverter(SensorEntity):
 
     def __init__(
         self, probe, name, unique_id, description: GrowattSensorEntityDescription
-    ):
+    ) -> None:
         """Initialize a PVOutput sensor."""
         self.probe = probe
         self.entity_description = description
diff --git a/homeassistant/components/heos/__init__.py b/homeassistant/components/heos/__init__.py
index 1298d6e5d97..7aff107d8c5 100644
--- a/homeassistant/components/heos/__init__.py
+++ b/homeassistant/components/heos/__init__.py
@@ -392,7 +392,7 @@ class SourceManager:
         *,
         retry_delay: int = COMMAND_RETRY_DELAY,
         max_retry_attempts: int = COMMAND_RETRY_ATTEMPTS,
-    ):
+    ) -> None:
         """Init input manager."""
         self.retry_delay = retry_delay
         self.max_retry_attempts = max_retry_attempts
diff --git a/homeassistant/components/hydrawise/__init__.py b/homeassistant/components/hydrawise/__init__.py
index 7074f86e4a8..a99c19cd46a 100644
--- a/homeassistant/components/hydrawise/__init__.py
+++ b/homeassistant/components/hydrawise/__init__.py
@@ -89,7 +89,7 @@ class HydrawiseEntity(Entity):
 
     _attr_attribution = "Data provided by hydrawise.com"
 
-    def __init__(self, data, description: EntityDescription):
+    def __init__(self, data, description: EntityDescription) -> None:
         """Initialize the Hydrawise entity."""
         self.entity_description = description
         self.data = data
diff --git a/homeassistant/components/hydrawise/switch.py b/homeassistant/components/hydrawise/switch.py
index ed4fa11317e..cc12638f329 100644
--- a/homeassistant/components/hydrawise/switch.py
+++ b/homeassistant/components/hydrawise/switch.py
@@ -81,7 +81,7 @@ class HydrawiseSwitch(HydrawiseEntity, SwitchEntity):
 
     def __init__(
         self, data, description: SwitchEntityDescription, default_watering_timer
-    ):
+    ) -> None:
         """Initialize a switch for Hydrawise device."""
         super().__init__(data, description)
         self._default_watering_timer = default_watering_timer
diff --git a/homeassistant/components/ios/sensor.py b/homeassistant/components/ios/sensor.py
index 397d829f36d..f4dab9e301b 100644
--- a/homeassistant/components/ios/sensor.py
+++ b/homeassistant/components/ios/sensor.py
@@ -60,7 +60,9 @@ class IOSSensor(SensorEntity):
 
     _attr_should_poll = False
 
-    def __init__(self, device_name, device, description: SensorEntityDescription):
+    def __init__(
+        self, device_name, device, description: SensorEntityDescription
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._device = device
diff --git a/homeassistant/components/iperf3/sensor.py b/homeassistant/components/iperf3/sensor.py
index 1b68709b934..e39d1e1d864 100644
--- a/homeassistant/components/iperf3/sensor.py
+++ b/homeassistant/components/iperf3/sensor.py
@@ -41,7 +41,7 @@ class Iperf3Sensor(RestoreEntity, SensorEntity):
     _attr_attribution = "Data retrieved using Iperf3"
     _attr_should_poll = False
 
-    def __init__(self, iperf3_data, description: SensorEntityDescription):
+    def __init__(self, iperf3_data, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._iperf3_data = iperf3_data
diff --git a/homeassistant/components/ipma/weather.py b/homeassistant/components/ipma/weather.py
index 4387e2d8e1e..8e46bf27d55 100644
--- a/homeassistant/components/ipma/weather.py
+++ b/homeassistant/components/ipma/weather.py
@@ -121,7 +121,7 @@ class IPMAWeather(WeatherEntity):
 
     _attr_attribution = ATTRIBUTION
 
-    def __init__(self, location: Location, api: IPMA_API, config):
+    def __init__(self, location: Location, api: IPMA_API, config) -> None:
         """Initialise the platform with a data instance and station name."""
         self._api = api
         self._location_name = config.get(CONF_NAME, location.name)
diff --git a/homeassistant/components/juicenet/sensor.py b/homeassistant/components/juicenet/sensor.py
index e87c752962b..fdc40211d77 100644
--- a/homeassistant/components/juicenet/sensor.py
+++ b/homeassistant/components/juicenet/sensor.py
@@ -91,7 +91,9 @@ async def async_setup_entry(
 class JuiceNetSensorDevice(JuiceNetDevice, SensorEntity):
     """Implementation of a JuiceNet sensor."""
 
-    def __init__(self, device, coordinator, description: SensorEntityDescription):
+    def __init__(
+        self, device, coordinator, description: SensorEntityDescription
+    ) -> None:
         """Initialise the sensor."""
         super().__init__(device, description.key, coordinator)
         self.entity_description = description
diff --git a/homeassistant/components/kaiterra/sensor.py b/homeassistant/components/kaiterra/sensor.py
index 63a73a1157a..ab487aa1a25 100644
--- a/homeassistant/components/kaiterra/sensor.py
+++ b/homeassistant/components/kaiterra/sensor.py
@@ -71,7 +71,7 @@ class KaiterraSensor(SensorEntity):
 
     def __init__(
         self, api, name, device_id, description: KaiterraSensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self._api = api
         self._device_id = device_id
diff --git a/homeassistant/components/konnected/sensor.py b/homeassistant/components/konnected/sensor.py
index 89436913606..749e1d5fd82 100644
--- a/homeassistant/components/konnected/sensor.py
+++ b/homeassistant/components/konnected/sensor.py
@@ -102,7 +102,7 @@ class KonnectedSensor(SensorEntity):
         description: SensorEntityDescription,
         addr=None,
         initial_state=None,
-    ):
+    ) -> None:
         """Initialize the entity for a single sensor_type."""
         self.entity_description = description
         self._addr = addr
diff --git a/homeassistant/components/litejet/scene.py b/homeassistant/components/litejet/scene.py
index 01dfc0a3ccd..762e8e543d5 100644
--- a/homeassistant/components/litejet/scene.py
+++ b/homeassistant/components/litejet/scene.py
@@ -37,7 +37,9 @@ async def async_setup_entry(
 class LiteJetScene(Scene):
     """Representation of a single LiteJet scene."""
 
-    def __init__(self, entry_id, lj: LiteJet, i, name):  # pylint: disable=invalid-name
+    def __init__(
+        self, entry_id, lj: LiteJet, i, name  # pylint: disable=invalid-name
+    ) -> None:
         """Initialize the scene."""
         self._lj = lj
         self._index = i
diff --git a/homeassistant/components/logi_circle/sensor.py b/homeassistant/components/logi_circle/sensor.py
index b31a7bda2b2..7d4697adb64 100644
--- a/homeassistant/components/logi_circle/sensor.py
+++ b/homeassistant/components/logi_circle/sensor.py
@@ -59,7 +59,7 @@ class LogiSensor(SensorEntity):
 
     _attr_attribution = ATTRIBUTION
 
-    def __init__(self, camera, time_zone, description: SensorEntityDescription):
+    def __init__(self, camera, time_zone, description: SensorEntityDescription) -> None:
         """Initialize a sensor for Logi Circle camera."""
         self.entity_description = description
         self._camera = camera
diff --git a/homeassistant/components/magicseaweed/sensor.py b/homeassistant/components/magicseaweed/sensor.py
index 3c3eb939181..aa59553ef81 100644
--- a/homeassistant/components/magicseaweed/sensor.py
+++ b/homeassistant/components/magicseaweed/sensor.py
@@ -146,7 +146,7 @@ class MagicSeaweedSensor(SensorEntity):
         unit_system,
         description: SensorEntityDescription,
         hour=None,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.client_name = name
diff --git a/homeassistant/components/nightscout/sensor.py b/homeassistant/components/nightscout/sensor.py
index e8aaa11f23d..795e7b17a16 100644
--- a/homeassistant/components/nightscout/sensor.py
+++ b/homeassistant/components/nightscout/sensor.py
@@ -37,7 +37,7 @@ async def async_setup_entry(
 class NightscoutSensor(SensorEntity):
     """Implementation of a Nightscout sensor."""
 
-    def __init__(self, api: NightscoutAPI, name, unique_id):
+    def __init__(self, api: NightscoutAPI, name, unique_id) -> None:
         """Initialize the Nightscout sensor."""
         self.api = api
         self._attr_unique_id = unique_id
diff --git a/homeassistant/components/nobo_hub/climate.py b/homeassistant/components/nobo_hub/climate.py
index 6e4cf13c986..7cb69dfb79a 100644
--- a/homeassistant/components/nobo_hub/climate.py
+++ b/homeassistant/components/nobo_hub/climate.py
@@ -85,7 +85,7 @@ class NoboZone(ClimateEntity):
     _attr_target_temperature_step = 1
     # Need to poll to get preset change when in HVACMode.AUTO, so can't set _attr_should_poll = False
 
-    def __init__(self, zone_id, hub: nobo, override_type):
+    def __init__(self, zone_id, hub: nobo, override_type) -> None:
         """Initialize the climate device."""
         self._id = zone_id
         self._nobo = hub
diff --git a/homeassistant/components/ombi/sensor.py b/homeassistant/components/ombi/sensor.py
index 90410ea8da2..1ab4b170e00 100644
--- a/homeassistant/components/ombi/sensor.py
+++ b/homeassistant/components/ombi/sensor.py
@@ -38,7 +38,7 @@ def setup_platform(
 class OmbiSensor(SensorEntity):
     """Representation of an Ombi sensor."""
 
-    def __init__(self, ombi, description: SensorEntityDescription):
+    def __init__(self, ombi, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._ombi = ombi
diff --git a/homeassistant/components/onvif/sensor.py b/homeassistant/components/onvif/sensor.py
index 5f63f9b7132..2fb7402be28 100644
--- a/homeassistant/components/onvif/sensor.py
+++ b/homeassistant/components/onvif/sensor.py
@@ -55,7 +55,9 @@ class ONVIFSensor(ONVIFBaseEntity, RestoreSensor):
 
     _attr_should_poll = False
 
-    def __init__(self, uid, device: ONVIFDevice, entry: er.RegistryEntry | None = None):
+    def __init__(
+        self, uid, device: ONVIFDevice, entry: er.RegistryEntry | None = None
+    ) -> None:
         """Initialize the ONVIF binary sensor."""
         self._attr_unique_id = uid
         if entry is not None:
diff --git a/homeassistant/components/openevse/sensor.py b/homeassistant/components/openevse/sensor.py
index d7a47b97594..aafda0d038b 100644
--- a/homeassistant/components/openevse/sensor.py
+++ b/homeassistant/components/openevse/sensor.py
@@ -113,7 +113,7 @@ def setup_platform(
 class OpenEVSESensor(SensorEntity):
     """Implementation of an OpenEVSE sensor."""
 
-    def __init__(self, charger, description: SensorEntityDescription):
+    def __init__(self, charger, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.charger = charger
diff --git a/homeassistant/components/point/sensor.py b/homeassistant/components/point/sensor.py
index cba990b60a6..34571c801a6 100644
--- a/homeassistant/components/point/sensor.py
+++ b/homeassistant/components/point/sensor.py
@@ -89,7 +89,7 @@ class MinutPointSensor(MinutPointEntity, SensorEntity):
 
     def __init__(
         self, point_client, device_id, description: MinutPointSensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         super().__init__(point_client, device_id, description.device_class)
         self.entity_description = description
diff --git a/homeassistant/components/poolsense/__init__.py b/homeassistant/components/poolsense/__init__.py
index 3652883b0f7..312a3b4be58 100644
--- a/homeassistant/components/poolsense/__init__.py
+++ b/homeassistant/components/poolsense/__init__.py
@@ -64,7 +64,7 @@ class PoolSenseEntity(CoordinatorEntity):
 
     _attr_attribution = ATTRIBUTION
 
-    def __init__(self, coordinator, email, description: EntityDescription):
+    def __init__(self, coordinator, email, description: EntityDescription) -> None:
         """Initialize poolsense sensor."""
         super().__init__(coordinator)
         self.entity_description = description
diff --git a/homeassistant/components/progettihwsw/binary_sensor.py b/homeassistant/components/progettihwsw/binary_sensor.py
index 6dcc9250259..058d76cdf05 100644
--- a/homeassistant/components/progettihwsw/binary_sensor.py
+++ b/homeassistant/components/progettihwsw/binary_sensor.py
@@ -59,7 +59,7 @@ async def async_setup_entry(
 class ProgettihwswBinarySensor(CoordinatorEntity, BinarySensorEntity):
     """Represent a binary sensor."""
 
-    def __init__(self, coordinator, name, sensor: Input):
+    def __init__(self, coordinator, name, sensor: Input) -> None:
         """Set initializing values."""
         super().__init__(coordinator)
         self._name = name
diff --git a/homeassistant/components/progettihwsw/switch.py b/homeassistant/components/progettihwsw/switch.py
index 0aab943e385..956848a6594 100644
--- a/homeassistant/components/progettihwsw/switch.py
+++ b/homeassistant/components/progettihwsw/switch.py
@@ -60,7 +60,7 @@ async def async_setup_entry(
 class ProgettihwswSwitch(CoordinatorEntity, SwitchEntity):
     """Represent a switch entity."""
 
-    def __init__(self, coordinator, name, switch: Relay):
+    def __init__(self, coordinator, name, switch: Relay) -> None:
         """Initialize the values."""
         super().__init__(coordinator)
         self._switch = switch
diff --git a/homeassistant/components/proxmoxve/__init__.py b/homeassistant/components/proxmoxve/__init__.py
index 44a74337998..8e8842abf47 100644
--- a/homeassistant/components/proxmoxve/__init__.py
+++ b/homeassistant/components/proxmoxve/__init__.py
@@ -256,7 +256,7 @@ class ProxmoxEntity(CoordinatorEntity):
         host_name,
         node_name,
         vm_id=None,
-    ):
+    ) -> None:
         """Initialize the Proxmox entity."""
         super().__init__(coordinator)
 
diff --git a/homeassistant/components/proxmoxve/binary_sensor.py b/homeassistant/components/proxmoxve/binary_sensor.py
index fdc10eda2dd..9bb78d46ea7 100644
--- a/homeassistant/components/proxmoxve/binary_sensor.py
+++ b/homeassistant/components/proxmoxve/binary_sensor.py
@@ -78,7 +78,7 @@ class ProxmoxBinarySensor(ProxmoxEntity, BinarySensorEntity):
         host_name,
         node_name,
         vm_id,
-    ):
+    ) -> None:
         """Create the binary sensor for vms or containers."""
         super().__init__(
             coordinator, unique_id, name, icon, host_name, node_name, vm_id
diff --git a/homeassistant/components/pyload/sensor.py b/homeassistant/components/pyload/sensor.py
index 53762c5df35..35e32d510ca 100644
--- a/homeassistant/components/pyload/sensor.py
+++ b/homeassistant/components/pyload/sensor.py
@@ -102,7 +102,7 @@ class PyLoadSensor(SensorEntity):
 
     def __init__(
         self, api: PyLoadAPI, sensor_type: SensorEntityDescription, client_name
-    ):
+    ) -> None:
         """Initialize a new pyLoad sensor."""
         self._attr_name = f"{client_name} {sensor_type.name}"
         self.type = sensor_type.key
diff --git a/homeassistant/components/qbittorrent/sensor.py b/homeassistant/components/qbittorrent/sensor.py
index ff37d4f59dd..14bc0eb2ed9 100644
--- a/homeassistant/components/qbittorrent/sensor.py
+++ b/homeassistant/components/qbittorrent/sensor.py
@@ -107,7 +107,7 @@ class QBittorrentSensor(SensorEntity):
         qbittorrent_client,
         client_name,
         exception,
-    ):
+    ) -> None:
         """Initialize the qBittorrent sensor."""
         self.entity_description = description
         self.client = qbittorrent_client
diff --git a/homeassistant/components/qnap/sensor.py b/homeassistant/components/qnap/sensor.py
index 378ed165f83..66fc5631718 100644
--- a/homeassistant/components/qnap/sensor.py
+++ b/homeassistant/components/qnap/sensor.py
@@ -319,7 +319,9 @@ class QNAPStatsAPI:
 class QNAPSensor(SensorEntity):
     """Base class for a QNAP sensor."""
 
-    def __init__(self, api, description: SensorEntityDescription, monitor_device=None):
+    def __init__(
+        self, api, description: SensorEntityDescription, monitor_device=None
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.monitor_device = monitor_device
diff --git a/homeassistant/components/raspyrfm/switch.py b/homeassistant/components/raspyrfm/switch.py
index 6bf097b9f54..77360c6d224 100644
--- a/homeassistant/components/raspyrfm/switch.py
+++ b/homeassistant/components/raspyrfm/switch.py
@@ -98,7 +98,7 @@ class RaspyRFMSwitch(SwitchEntity):
 
     _attr_should_poll = False
 
-    def __init__(self, raspyrfm_client, name: str, gateway, controlunit):
+    def __init__(self, raspyrfm_client, name: str, gateway, controlunit) -> None:
         """Initialize the switch."""
         self._raspyrfm_client = raspyrfm_client
 
diff --git a/homeassistant/components/reddit/sensor.py b/homeassistant/components/reddit/sensor.py
index 0ae53ca8610..43550658ac3 100644
--- a/homeassistant/components/reddit/sensor.py
+++ b/homeassistant/components/reddit/sensor.py
@@ -94,7 +94,7 @@ def setup_platform(
 class RedditSensor(SensorEntity):
     """Representation of a Reddit sensor."""
 
-    def __init__(self, reddit, subreddit: str, limit: int, sort_by: str):
+    def __init__(self, reddit, subreddit: str, limit: int, sort_by: str) -> None:
         """Initialize the Reddit sensor."""
         self._reddit = reddit
         self._subreddit = subreddit
diff --git a/homeassistant/components/repetier/sensor.py b/homeassistant/components/repetier/sensor.py
index f3341cf5e61..24c97c74b0f 100644
--- a/homeassistant/components/repetier/sensor.py
+++ b/homeassistant/components/repetier/sensor.py
@@ -69,7 +69,7 @@ class RepetierSensor(SensorEntity):
         name,
         printer_id,
         description: RepetierSensorEntityDescription,
-    ):
+    ) -> None:
         """Init new sensor."""
         self.entity_description = description
         self._api = api
diff --git a/homeassistant/components/ring/binary_sensor.py b/homeassistant/components/ring/binary_sensor.py
index e7463c6474e..06872cc7338 100644
--- a/homeassistant/components/ring/binary_sensor.py
+++ b/homeassistant/components/ring/binary_sensor.py
@@ -80,7 +80,7 @@ class RingBinarySensor(RingEntityMixin, BinarySensorEntity):
         ring,
         device,
         description: RingBinarySensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize a sensor for Ring device."""
         super().__init__(config_entry_id, device)
         self.entity_description = description
diff --git a/homeassistant/components/ring/sensor.py b/homeassistant/components/ring/sensor.py
index c53f26a0e99..027eccb1c3d 100644
--- a/homeassistant/components/ring/sensor.py
+++ b/homeassistant/components/ring/sensor.py
@@ -49,7 +49,7 @@ class RingSensor(RingEntityMixin, SensorEntity):
         config_entry_id,
         device,
         description: RingSensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize a sensor for Ring device."""
         super().__init__(config_entry_id, device)
         self.entity_description = description
diff --git a/homeassistant/components/rova/sensor.py b/homeassistant/components/rova/sensor.py
index 26f6d67e697..21effd3da3a 100644
--- a/homeassistant/components/rova/sensor.py
+++ b/homeassistant/components/rova/sensor.py
@@ -109,7 +109,7 @@ class RovaSensor(SensorEntity):
 
     def __init__(
         self, platform_name, description: SensorEntityDescription, data_service
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.data_service = data_service
diff --git a/homeassistant/components/rtorrent/sensor.py b/homeassistant/components/rtorrent/sensor.py
index e9c7aa89ffe..2ef6786153a 100644
--- a/homeassistant/components/rtorrent/sensor.py
+++ b/homeassistant/components/rtorrent/sensor.py
@@ -130,7 +130,7 @@ class RTorrentSensor(SensorEntity):
 
     def __init__(
         self, rtorrent_client, client_name, description: SensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.client = rtorrent_client
diff --git a/homeassistant/components/sabnzbd/sensor.py b/homeassistant/components/sabnzbd/sensor.py
index a29e1e46abd..1d85fcf0243 100644
--- a/homeassistant/components/sabnzbd/sensor.py
+++ b/homeassistant/components/sabnzbd/sensor.py
@@ -160,7 +160,7 @@ class SabnzbdSensor(SensorEntity):
         client_name,
         description: SabnzbdSensorEntityDescription,
         entry_id,
-    ):
+    ) -> None:
         """Initialize the sensor."""
 
         self._attr_unique_id = f"{entry_id}_{description.key}"
diff --git a/homeassistant/components/smappee/sensor.py b/homeassistant/components/smappee/sensor.py
index 951aab1bde1..d39f173d76b 100644
--- a/homeassistant/components/smappee/sensor.py
+++ b/homeassistant/components/smappee/sensor.py
@@ -336,7 +336,7 @@ class SmappeeSensor(SensorEntity):
         smappee_base,
         service_location,
         description: SmappeeSensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the Smappee sensor."""
         self.entity_description = description
         self._smappee_base = smappee_base
diff --git a/homeassistant/components/smartthings/__init__.py b/homeassistant/components/smartthings/__init__.py
index 4f0c3aae2aa..4127cd5deb5 100644
--- a/homeassistant/components/smartthings/__init__.py
+++ b/homeassistant/components/smartthings/__init__.py
@@ -279,7 +279,7 @@ class DeviceBroker:
         smart_app,
         devices: Iterable,
         scenes: Iterable,
-    ):
+    ) -> None:
         """Create a new instance of the DeviceBroker."""
         self._hass = hass
         self._entry = entry
diff --git a/homeassistant/components/smarttub/entity.py b/homeassistant/components/smarttub/entity.py
index 45f4556398c..0c935d77b5d 100644
--- a/homeassistant/components/smarttub/entity.py
+++ b/homeassistant/components/smarttub/entity.py
@@ -16,7 +16,7 @@ class SmartTubEntity(CoordinatorEntity):
 
     def __init__(
         self, coordinator: DataUpdateCoordinator, spa: smarttub.Spa, entity_name
-    ):
+    ) -> None:
         """Initialize the entity.
 
         Given a spa id and a short name for the entity, we provide basic device
diff --git a/homeassistant/components/smarttub/switch.py b/homeassistant/components/smarttub/switch.py
index b9afe94c06b..d01b92c2186 100644
--- a/homeassistant/components/smarttub/switch.py
+++ b/homeassistant/components/smarttub/switch.py
@@ -33,7 +33,7 @@ async def async_setup_entry(
 class SmartTubPump(SmartTubEntity, SwitchEntity):
     """A pump on a spa."""
 
-    def __init__(self, coordinator, pump: SpaPump):
+    def __init__(self, coordinator, pump: SpaPump) -> None:
         """Initialize the entity."""
         super().__init__(coordinator, pump.spa, "pump")
         self.pump_id = pump.id
diff --git a/homeassistant/components/solaredge_local/sensor.py b/homeassistant/components/solaredge_local/sensor.py
index 29c7f1ee6f3..35e5d758433 100644
--- a/homeassistant/components/solaredge_local/sensor.py
+++ b/homeassistant/components/solaredge_local/sensor.py
@@ -278,7 +278,7 @@ class SolarEdgeSensor(SensorEntity):
         platform_name,
         data,
         description: SolarEdgeLocalSensorEntityDescription,
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._platform_name = platform_name
diff --git a/homeassistant/components/startca/sensor.py b/homeassistant/components/startca/sensor.py
index bf05b3a2210..3334afded00 100644
--- a/homeassistant/components/startca/sensor.py
+++ b/homeassistant/components/startca/sensor.py
@@ -168,7 +168,7 @@ async def async_setup_platform(
 class StartcaSensor(SensorEntity):
     """Representation of Start.ca Bandwidth sensor."""
 
-    def __init__(self, startcadata, name, description: SensorEntityDescription):
+    def __init__(self, startcadata, name, description: SensorEntityDescription) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self.startcadata = startcadata
diff --git a/homeassistant/components/thinkingcleaner/sensor.py b/homeassistant/components/thinkingcleaner/sensor.py
index 8b0d30d13ed..b56c9f61135 100644
--- a/homeassistant/components/thinkingcleaner/sensor.py
+++ b/homeassistant/components/thinkingcleaner/sensor.py
@@ -99,7 +99,9 @@ def setup_platform(
 class ThinkingCleanerSensor(SensorEntity):
     """Representation of a ThinkingCleaner Sensor."""
 
-    def __init__(self, tc_object, update_devices, description: SensorEntityDescription):
+    def __init__(
+        self, tc_object, update_devices, description: SensorEntityDescription
+    ) -> None:
         """Initialize the ThinkingCleaner."""
         self.entity_description = description
         self._tc_object = tc_object
diff --git a/homeassistant/components/thinkingcleaner/switch.py b/homeassistant/components/thinkingcleaner/switch.py
index 66d2ab02e93..1befc53ffff 100644
--- a/homeassistant/components/thinkingcleaner/switch.py
+++ b/homeassistant/components/thinkingcleaner/switch.py
@@ -75,7 +75,9 @@ def setup_platform(
 class ThinkingCleanerSwitch(SwitchEntity):
     """ThinkingCleaner Switch (dock, clean, find me)."""
 
-    def __init__(self, tc_object, update_devices, description: SwitchEntityDescription):
+    def __init__(
+        self, tc_object, update_devices, description: SwitchEntityDescription
+    ) -> None:
         """Initialize the ThinkingCleaner."""
         self.entity_description = description
 
diff --git a/homeassistant/components/totalconnect/alarm_control_panel.py b/homeassistant/components/totalconnect/alarm_control_panel.py
index c6433fb71a4..186f6805b7f 100644
--- a/homeassistant/components/totalconnect/alarm_control_panel.py
+++ b/homeassistant/components/totalconnect/alarm_control_panel.py
@@ -86,7 +86,7 @@ class TotalConnectAlarm(
         name,
         location_id,
         partition_id,
-    ):
+    ) -> None:
         """Initialize the TotalConnect status."""
         super().__init__(coordinator)
         self._location_id = location_id
diff --git a/homeassistant/components/travisci/sensor.py b/homeassistant/components/travisci/sensor.py
index b33f7315d17..ec62da37653 100644
--- a/homeassistant/components/travisci/sensor.py
+++ b/homeassistant/components/travisci/sensor.py
@@ -141,7 +141,7 @@ class TravisCISensor(SensorEntity):
 
     def __init__(
         self, data, repo_name, user, branch, description: SensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._build = None
diff --git a/homeassistant/components/vicare/binary_sensor.py b/homeassistant/components/vicare/binary_sensor.py
index 3f54e5bd7e7..385b64e845f 100644
--- a/homeassistant/components/vicare/binary_sensor.py
+++ b/homeassistant/components/vicare/binary_sensor.py
@@ -189,7 +189,7 @@ class ViCareBinarySensor(BinarySensorEntity):
 
     def __init__(
         self, name, api, device_config, description: ViCareBinarySensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = name
diff --git a/homeassistant/components/vicare/button.py b/homeassistant/components/vicare/button.py
index 95be680f957..8a1fba539af 100644
--- a/homeassistant/components/vicare/button.py
+++ b/homeassistant/components/vicare/button.py
@@ -98,7 +98,7 @@ class ViCareButton(ButtonEntity):
 
     def __init__(
         self, name, api, device_config, description: ViCareButtonEntityDescription
-    ):
+    ) -> None:
         """Initialize the button."""
         self.entity_description = description
         self._device_config = device_config
diff --git a/homeassistant/components/vicare/sensor.py b/homeassistant/components/vicare/sensor.py
index da1119711a4..43edf1a0cef 100644
--- a/homeassistant/components/vicare/sensor.py
+++ b/homeassistant/components/vicare/sensor.py
@@ -659,7 +659,7 @@ class ViCareSensor(SensorEntity):
 
     def __init__(
         self, name, api, device_config, description: ViCareSensorEntityDescription
-    ):
+    ) -> None:
         """Initialize the sensor."""
         self.entity_description = description
         self._attr_name = name
diff --git a/homeassistant/components/vilfo/sensor.py b/homeassistant/components/vilfo/sensor.py
index c41e61d099e..b6339cea0d6 100644
--- a/homeassistant/components/vilfo/sensor.py
+++ b/homeassistant/components/vilfo/sensor.py
@@ -32,7 +32,7 @@ class VilfoRouterSensor(SensorEntity):
 
     entity_description: VilfoSensorEntityDescription
 
-    def __init__(self, api, description: VilfoSensorEntityDescription):
+    def __init__(self, api, description: VilfoSensorEntityDescription) -> None:
         """Initialize."""
         self.entity_description = description
         self.api = api
diff --git a/homeassistant/components/vultr/sensor.py b/homeassistant/components/vultr/sensor.py
index 3710bd959f3..a77fab62bd4 100644
--- a/homeassistant/components/vultr/sensor.py
+++ b/homeassistant/components/vultr/sensor.py
@@ -84,7 +84,9 @@ def setup_platform(
 class VultrSensor(SensorEntity):
     """Representation of a Vultr subscription sensor."""
 
-    def __init__(self, vultr, subscription, name, description: SensorEntityDescription):
+    def __init__(
+        self, vultr, subscription, name, description: SensorEntityDescription
+    ) -> None:
         """Initialize a new Vultr sensor."""
         self.entity_description = description
         self._vultr = vultr
diff --git a/homeassistant/components/wirelesstag/switch.py b/homeassistant/components/wirelesstag/switch.py
index 9829cffd2b5..26c7d9384a6 100644
--- a/homeassistant/components/wirelesstag/switch.py
+++ b/homeassistant/components/wirelesstag/switch.py
@@ -77,7 +77,7 @@ def setup_platform(
 class WirelessTagSwitch(WirelessTagBaseSensor, SwitchEntity):
     """A switch implementation for Wireless Sensor Tags."""
 
-    def __init__(self, api, tag, description: SwitchEntityDescription):
+    def __init__(self, api, tag, description: SwitchEntityDescription) -> None:
         """Initialize a switch for Wireless Sensor Tag."""
         super().__init__(api, tag)
         self.entity_description = description
diff --git a/homeassistant/components/wolflink/sensor.py b/homeassistant/components/wolflink/sensor.py
index 3da12b65d5f..60883a0acf5 100644
--- a/homeassistant/components/wolflink/sensor.py
+++ b/homeassistant/components/wolflink/sensor.py
@@ -53,7 +53,7 @@ async def async_setup_entry(
 class WolfLinkSensor(CoordinatorEntity, SensorEntity):
     """Base class for all Wolf entities."""
 
-    def __init__(self, coordinator, wolf_object: Parameter, device_id):
+    def __init__(self, coordinator, wolf_object: Parameter, device_id) -> None:
         """Initialize."""
         super().__init__(coordinator)
         self.wolf_object = wolf_object
diff --git a/homeassistant/components/xiaomi_miio/vacuum.py b/homeassistant/components/xiaomi_miio/vacuum.py
index 3d6ada7481f..10fd1f2406b 100644
--- a/homeassistant/components/xiaomi_miio/vacuum.py
+++ b/homeassistant/components/xiaomi_miio/vacuum.py
@@ -206,7 +206,7 @@ class MiroboVacuum(
         entry,
         unique_id,
         coordinator: DataUpdateCoordinator[VacuumCoordinatorData],
-    ):
+    ) -> None:
         """Initialize the Xiaomi vacuum cleaner robot handler."""
         super().__init__(device, entry, unique_id, coordinator)
         self._state: str | None = None
diff --git a/homeassistant/components/yandex_transport/sensor.py b/homeassistant/components/yandex_transport/sensor.py
index fe27ddcdbbe..d3e7e48815c 100644
--- a/homeassistant/components/yandex_transport/sensor.py
+++ b/homeassistant/components/yandex_transport/sensor.py
@@ -71,7 +71,7 @@ class DiscoverYandexTransport(SensorEntity):
 
     _attr_attribution = "Data provided by maps.yandex.ru"
 
-    def __init__(self, requester: YandexMapsRequester, stop_id, routes, name):
+    def __init__(self, requester: YandexMapsRequester, stop_id, routes, name) -> None:
         """Initialize sensor."""
         self.requester = requester
         self._stop_id = stop_id
diff --git a/homeassistant/components/zha/alarm_control_panel.py b/homeassistant/components/zha/alarm_control_panel.py
index ee37a345e17..6a5e8bb476a 100644
--- a/homeassistant/components/zha/alarm_control_panel.py
+++ b/homeassistant/components/zha/alarm_control_panel.py
@@ -89,7 +89,7 @@ class ZHAAlarmControlPanel(ZhaEntity, AlarmControlPanelEntity):
         | AlarmControlPanelEntityFeature.TRIGGER
     )
 
-    def __init__(self, unique_id, zha_device: ZHADevice, channels, **kwargs):
+    def __init__(self, unique_id, zha_device: ZHADevice, channels, **kwargs) -> None:
         """Initialize the ZHA alarm control device."""
         super().__init__(unique_id, zha_device, channels, **kwargs)
         cfg_entry = zha_device.gateway.config_entry
diff --git a/homeassistant/components/zha/light.py b/homeassistant/components/zha/light.py
index f6acbe181d8..1e6bf203d01 100644
--- a/homeassistant/components/zha/light.py
+++ b/homeassistant/components/zha/light.py
@@ -623,7 +623,7 @@ class Light(BaseLight, ZhaEntity):
     _attr_supported_color_modes: set[ColorMode]
     _REFRESH_INTERVAL = (45, 75)
 
-    def __init__(self, unique_id, zha_device: ZHADevice, channels, **kwargs):
+    def __init__(self, unique_id, zha_device: ZHADevice, channels, **kwargs) -> None:
         """Initialize the ZHA light."""
         super().__init__(unique_id, zha_device, channels, **kwargs)
         self._on_off_channel = self.cluster_channels[CHANNEL_ON_OFF]