Add generics to Withings (#102770)

homeassistant/components/withings/calendar.py

@@ -65,13 +65,13 @@ def get_event_name(category: WorkoutCategory) -> str:
     return name.replace("_", " ")
 
 
-class WithingsWorkoutCalendarEntity(CalendarEntity, WithingsEntity):
+class WithingsWorkoutCalendarEntity(
+    CalendarEntity, WithingsEntity[WithingsWorkoutDataUpdateCoordinator]
+):
     """A calendar entity."""
 
     _attr_translation_key = "workout"
 
-    coordinator: WithingsWorkoutDataUpdateCoordinator
-
     def __init__(
         self, client: WithingsClient, coordinator: WithingsWorkoutDataUpdateCoordinator
     ) -> None:

homeassistant/components/withings/entity.py

@@ -1,21 +1,25 @@
 """Base entity for Withings."""
 from __future__ import annotations
 
+from typing import TypeVar
+
 from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import DOMAIN
 from .coordinator import WithingsDataUpdateCoordinator
 
+_T = TypeVar("_T", bound=WithingsDataUpdateCoordinator)
 
-class WithingsEntity(CoordinatorEntity[WithingsDataUpdateCoordinator]):
+
+class WithingsEntity(CoordinatorEntity[_T]):
     """Base class for withings entities."""
 
     _attr_has_entity_name = True
 
     def __init__(
         self,
-        coordinator: WithingsDataUpdateCoordinator,
+        coordinator: _T,
         key: str,
     ) -> None:
         """Initialize the Withings entity."""

homeassistant/components/withings/sensor.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 from collections.abc import Callable
 from dataclasses import dataclass
 from datetime import datetime
+from typing import Generic, TypeVar
 
 from aiowithings import (
     Activity,
@@ -787,26 +788,33 @@ async def async_setup_entry(
     async_add_entities(entities)
 
 
-class WithingsSensor(WithingsEntity, SensorEntity):
+_T = TypeVar("_T", bound=WithingsDataUpdateCoordinator)
+_ED = TypeVar("_ED", bound=SensorEntityDescription)
+
+
+class WithingsSensor(WithingsEntity[_T], SensorEntity, Generic[_T, _ED]):
     """Implementation of a Withings sensor."""
 
+    entity_description: _ED
+
     def __init__(
         self,
-        coordinator: WithingsDataUpdateCoordinator,
+        coordinator: _T,
-        entity_description: SensorEntityDescription,
+        entity_description: _ED,
     ) -> None:
         """Initialize sensor."""
         super().__init__(coordinator, entity_description.key)
         self.entity_description = entity_description
 
 
-class WithingsMeasurementSensor(WithingsSensor):
+class WithingsMeasurementSensor(
+    WithingsSensor[
+        WithingsMeasurementDataUpdateCoordinator,
+        WithingsMeasurementSensorEntityDescription,
+    ]
+):
     """Implementation of a Withings measurement sensor."""
 
-    coordinator: WithingsMeasurementDataUpdateCoordinator
-
-    entity_description: WithingsMeasurementSensorEntityDescription
-
     @property
     def native_value(self) -> float:
         """Return the state of the entity."""
@@ -821,13 +829,14 @@ class WithingsMeasurementSensor(WithingsSensor):
         )
 
 
-class WithingsSleepSensor(WithingsSensor):
+class WithingsSleepSensor(
+    WithingsSensor[
+        WithingsSleepDataUpdateCoordinator,
+        WithingsSleepSensorEntityDescription,
+    ]
+):
     """Implementation of a Withings sleep sensor."""
 
-    coordinator: WithingsSleepDataUpdateCoordinator
-
-    entity_description: WithingsSleepSensorEntityDescription
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the entity."""
@@ -836,13 +845,14 @@ class WithingsSleepSensor(WithingsSensor):
         return self.entity_description.value_fn(self.coordinator.data)
 
 
-class WithingsGoalsSensor(WithingsSensor):
+class WithingsGoalsSensor(
+    WithingsSensor[
+        WithingsGoalsDataUpdateCoordinator,
+        WithingsGoalsSensorEntityDescription,
+    ]
+):
     """Implementation of a Withings goals sensor."""
 
-    coordinator: WithingsGoalsDataUpdateCoordinator
-
-    entity_description: WithingsGoalsSensorEntityDescription
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the entity."""
@@ -850,13 +860,14 @@ class WithingsGoalsSensor(WithingsSensor):
         return self.entity_description.value_fn(self.coordinator.data)
 
 
-class WithingsActivitySensor(WithingsSensor):
+class WithingsActivitySensor(
+    WithingsSensor[
+        WithingsActivityDataUpdateCoordinator,
+        WithingsActivitySensorEntityDescription,
+    ]
+):
     """Implementation of a Withings activity sensor."""
 
-    coordinator: WithingsActivityDataUpdateCoordinator
-
-    entity_description: WithingsActivitySensorEntityDescription
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the entity."""
@@ -870,13 +881,14 @@ class WithingsActivitySensor(WithingsSensor):
         return dt_util.start_of_local_day()
 
 
-class WithingsWorkoutSensor(WithingsSensor):
+class WithingsWorkoutSensor(
+    WithingsSensor[
+        WithingsWorkoutDataUpdateCoordinator,
+        WithingsWorkoutSensorEntityDescription,
+    ]
+):
     """Implementation of a Withings workout sensor."""
 
-    coordinator: WithingsWorkoutDataUpdateCoordinator
-
-    entity_description: WithingsWorkoutSensorEntityDescription
-
     @property
     def native_value(self) -> StateType:
         """Return the state of the entity."""