Correct typing and activate mypy. (#53217)

homeassistant/components/huisbaasje/sensor.py

@@ -65,7 +65,7 @@ class HuisbaasjeSensor(CoordinatorEntity, SensorEntity):
         return self._name
 
     @property
-    def device_class(self) -> str:
+    def device_class(self) -> str | None:
         """Return the device class of the sensor."""
         return self._device_class
 

mypy.ini

@@ -1253,9 +1253,6 @@ ignore_errors = true
 [mypy-homeassistant.components.honeywell.*]
 ignore_errors = true
 
-[mypy-homeassistant.components.huisbaasje.*]
-ignore_errors = true
-
 [mypy-homeassistant.components.humidifier.*]
 ignore_errors = true
 

script/hassfest/mypy_config.py

@@ -76,7 +76,6 @@ IGNORED_MODULES: Final[list[str]] = [
     "homeassistant.components.homekit_controller.*",
     "homeassistant.components.homematicip_cloud.*",
     "homeassistant.components.honeywell.*",
-    "homeassistant.components.huisbaasje.*",
     "homeassistant.components.humidifier.*",
     "homeassistant.components.iaqualink.*",
     "homeassistant.components.icloud.*",