Add setup type hints [a] (#63424)

Co-authored-by: epenet <epenet@users.noreply.github.com>

homeassistant/components/airtouch4/climate.py

@@ -1,4 +1,5 @@
 """AirTouch 4 component to control of AirTouch 4 Climate Devices."""
+from __future__ import annotations
 
 import logging
 
@@ -19,9 +20,11 @@ from homeassistant.components.climate.const import (
     SUPPORT_FAN_MODE,
     SUPPORT_TARGET_TEMPERATURE,
 )
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import DOMAIN
@@ -63,14 +66,21 @@ HA_FAN_SPEED_TO_AT = {value: key for key, value in AT_TO_HA_FAN_SPEED.items()}
 _LOGGER = logging.getLogger(__name__)
 
 
-async def async_setup_entry(hass, config_entry, async_add_entities):
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
     """Set up the Airtouch 4."""
     coordinator = hass.data[DOMAIN][config_entry.entry_id]
     info = coordinator.data
-    entities = [
+    entities: list[ClimateEntity] = [
         AirtouchGroup(coordinator, group["group_number"], info)
         for group in info["groups"]
-    ] + [AirtouchAC(coordinator, ac["ac_number"], info) for ac in info["acs"]]
+    ]
+    entities.extend(
+        AirtouchAC(coordinator, ac["ac_number"], info) for ac in info["acs"]
+    )
 
     _LOGGER.debug(" Found entities %s", entities)