Add basic type hints to utility_meter (#69325)

Co-authored-by: Diogo Gomes <diogogomes@gmail.com>

homeassistant/components/utility_meter/select.py

@@ -20,6 +20,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_track_state_change_event
 from homeassistant.helpers.restore_state import RestoreEntity
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from .const import (
     ATTR_TARIFF,
@@ -50,8 +51,20 @@ async def async_setup_entry(
     async_add_entities([tariff_select])
 
 
-async def async_setup_platform(hass, conf, async_add_entities, discovery_info=None):
+async def async_setup_platform(
+    hass: HomeAssistant,
+    conf: ConfigType,
+    async_add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the utility meter select."""
+    if discovery_info is None:
+        _LOGGER.error(
+            "This platform is not available to configure "
+            "from 'select:' in configuration.yaml"
+        )
+        return
+
     legacy_component = hass.data[DATA_LEGACY_COMPONENT]
     async_add_entities(
         [

homeassistant/components/utility_meter/sensor.py

@@ -176,7 +176,10 @@ async def async_setup_platform(
 ) -> None:
     """Set up the utility meter sensor."""
     if discovery_info is None:
-        _LOGGER.error("This platform is only available through discovery")
+        _LOGGER.error(
+            "This platform is not available to configure "
+            "from 'sensor:' in configuration.yaml"
+        )
         return
 
     meters = []

tests/components/utility_meter/test_init.py

@@ -17,6 +17,7 @@ from homeassistant.components.utility_meter.const import (
     SERVICE_SELECT_TARIFF,
     SIGNAL_RESET_METER,
 )
+import homeassistant.components.utility_meter.select as um_select
 import homeassistant.components.utility_meter.sensor as um_sensor
 from homeassistant.const import (
     ATTR_ENTITY_ID,
@@ -380,6 +381,7 @@ async def test_bad_cron(hass, legacy_patchable_time):
 
 async def test_setup_missing_discovery(hass):
     """Test setup with configuration missing discovery_info."""
+    assert not await um_select.async_setup_platform(hass, {CONF_PLATFORM: DOMAIN}, None)
     assert not await um_sensor.async_setup_platform(hass, {CONF_PLATFORM: DOMAIN}, None)