diff --git a/homeassistant/components/vasttrafik/sensor.py b/homeassistant/components/vasttrafik/sensor.py
index 4c1c1de5e52..5e446106312 100644
--- a/homeassistant/components/vasttrafik/sensor.py
+++ b/homeassistant/components/vasttrafik/sensor.py
@@ -1,4 +1,6 @@
 """Support for Västtrafik public transport."""
+from __future__ import annotations
+
 from datetime import timedelta
 import logging
 
@@ -7,7 +9,10 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_DELAY, CONF_NAME
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from homeassistant.util import Throttle
 from homeassistant.util.dt import now
 
@@ -36,7 +41,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_KEY): cv.string,
         vol.Required(CONF_SECRET): cv.string,
-        vol.Optional(CONF_DEPARTURES): [
+        vol.Required(CONF_DEPARTURES): [
             {
                 vol.Required(CONF_FROM): cv.string,
                 vol.Optional(CONF_DELAY, default=DEFAULT_DELAY): cv.positive_int,
@@ -51,12 +56,17 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the departure sensor."""
     planner = vasttrafik.JournyPlanner(config.get(CONF_KEY), config.get(CONF_SECRET))
     sensors = []
 
-    for departure in config.get(CONF_DEPARTURES):
+    for departure in config[CONF_DEPARTURES]:
         sensors.append(
             VasttrafikDepartureSensor(
                 planner,
diff --git a/homeassistant/components/waqi/sensor.py b/homeassistant/components/waqi/sensor.py
index 331e689f14a..a4d4bac290b 100644
--- a/homeassistant/components/waqi/sensor.py
+++ b/homeassistant/components/waqi/sensor.py
@@ -1,4 +1,6 @@
 """Support for the World Air Quality Index service."""
+from __future__ import annotations
+
 import asyncio
 from datetime import timedelta
 import logging
@@ -18,10 +20,13 @@ from homeassistant.const import (
     ATTR_TIME,
     CONF_TOKEN,
 )
+from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -66,12 +71,17 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
+async def async_setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    async_add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the requested World Air Quality Index locations."""
 
-    token = config.get(CONF_TOKEN)
-    station_filter = config.get(CONF_STATIONS)
-    locations = config.get(CONF_LOCATIONS)
+    token = config[CONF_TOKEN]
+    station_filter = config[CONF_STATIONS]
+    locations = config[CONF_LOCATIONS]
 
     client = WaqiClient(token, async_get_clientsession(hass), timeout=TIMEOUT)
     dev = []
diff --git a/homeassistant/components/waterfurnace/__init__.py b/homeassistant/components/waterfurnace/__init__.py
index 9ae5836f69d..3d2faec8f39 100644
--- a/homeassistant/components/waterfurnace/__init__.py
+++ b/homeassistant/components/waterfurnace/__init__.py
@@ -8,8 +8,9 @@ import voluptuous as vol
 from waterfurnace.waterfurnace import WaterFurnace, WFCredentialError, WFException
 
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, EVENT_HOMEASSISTANT_STOP
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import config_validation as cv, discovery
+from homeassistant.helpers.typing import ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -35,13 +36,13 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def setup(hass, base_config):
+def setup(hass: HomeAssistant, base_config: ConfigType) -> bool:
     """Set up waterfurnace platform."""
 
-    config = base_config.get(DOMAIN)
+    config = base_config[DOMAIN]
 
-    username = config.get(CONF_USERNAME)
-    password = config.get(CONF_PASSWORD)
+    username = config[CONF_USERNAME]
+    password = config[CONF_PASSWORD]
 
     wfconn = WaterFurnace(username, password)
     # NOTE(sdague): login will throw an exception if this doesn't
diff --git a/homeassistant/components/webhook/__init__.py b/homeassistant/components/webhook/__init__.py
index 983ead616f2..c16d1b93015 100644
--- a/homeassistant/components/webhook/__init__.py
+++ b/homeassistant/components/webhook/__init__.py
@@ -13,6 +13,7 @@ from homeassistant.components import websocket_api
 from homeassistant.components.http.view import HomeAssistantView
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.network import get_url
+from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import bind_hass
 from homeassistant.util.aiohttp import MockRequest
 
@@ -110,7 +111,7 @@ async def async_handle_webhook(hass, webhook_id, request):
         return Response(status=HTTPStatus.OK)
 
 
-async def async_setup(hass, config):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Initialize the webhook component."""
     hass.http.register_view(WebhookView)
     hass.components.websocket_api.async_register_command(
diff --git a/homeassistant/components/wirelesstag/binary_sensor.py b/homeassistant/components/wirelesstag/binary_sensor.py
index da901f31cd6..dde1a22f622 100644
--- a/homeassistant/components/wirelesstag/binary_sensor.py
+++ b/homeassistant/components/wirelesstag/binary_sensor.py
@@ -1,11 +1,15 @@
 """Binary sensor support for Wireless Sensor Tags."""
+from __future__ import annotations
+
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import PLATFORM_SCHEMA, BinarySensorEntity
 from homeassistant.const import CONF_MONITORED_CONDITIONS, STATE_OFF, STATE_ON
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import (
     DOMAIN as WIRELESSTAG_DOMAIN,
@@ -68,15 +72,20 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the platform for a WirelessTags."""
-    platform = hass.data.get(WIRELESSTAG_DOMAIN)
+    platform = hass.data[WIRELESSTAG_DOMAIN]
 
     sensors = []
     tags = platform.tags
     for tag in tags.values():
         allowed_sensor_types = tag.supported_binary_events_types
-        for sensor_type in config.get(CONF_MONITORED_CONDITIONS):
+        for sensor_type in config[CONF_MONITORED_CONDITIONS]:
             if sensor_type in allowed_sensor_types:
                 sensors.append(WirelessTagBinarySensor(platform, tag, sensor_type))
 
diff --git a/homeassistant/components/wirelesstag/sensor.py b/homeassistant/components/wirelesstag/sensor.py
index 5c7de69cc2a..9cec276f26a 100644
--- a/homeassistant/components/wirelesstag/sensor.py
+++ b/homeassistant/components/wirelesstag/sensor.py
@@ -13,9 +13,11 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.const import CONF_MONITORED_CONDITIONS
-from homeassistant.core import callback
+from homeassistant.core import HomeAssistant, callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_TAG_UPDATE, WirelessTagBaseSensor
 
@@ -66,9 +68,14 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the sensor platform."""
-    platform = hass.data.get(WIRELESSTAG_DOMAIN)
+    platform = hass.data[WIRELESSTAG_DOMAIN]
     sensors = []
     tags = platform.tags
     for tag in tags.values():
diff --git a/homeassistant/components/wirelesstag/switch.py b/homeassistant/components/wirelesstag/switch.py
index ca5391fdf96..a6e4a85559c 100644
--- a/homeassistant/components/wirelesstag/switch.py
+++ b/homeassistant/components/wirelesstag/switch.py
@@ -9,7 +9,10 @@ from homeassistant.components.switch import (
     SwitchEntityDescription,
 )
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN as WIRELESSTAG_DOMAIN, WirelessTagBaseSensor
 
@@ -47,9 +50,14 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up switches for a Wireless Sensor Tags."""
-    platform = hass.data.get(WIRELESSTAG_DOMAIN)
+    platform = hass.data[WIRELESSTAG_DOMAIN]
 
     tags = platform.load_tags()
     monitored_conditions = config[CONF_MONITORED_CONDITIONS]
diff --git a/homeassistant/components/wolflink/sensor.py b/homeassistant/components/wolflink/sensor.py
index e9ecf4c3e55..f1a94cbbe20 100644
--- a/homeassistant/components/wolflink/sensor.py
+++ b/homeassistant/components/wolflink/sensor.py
@@ -1,4 +1,6 @@
 """The Wolf SmartSet sensors."""
+from __future__ import annotations
+
 from wolf_smartset.models import (
     HoursParameter,
     ListItemParameter,
@@ -10,20 +12,27 @@ from wolf_smartset.models import (
 )
 
 from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import PRESSURE_BAR, TEMP_CELSIUS, TIME_HOURS
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import COORDINATOR, DEVICE_ID, DOMAIN, PARAMETERS, STATES
 
 
-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 all entries for Wolf Platform."""
 
     coordinator = hass.data[DOMAIN][config_entry.entry_id][COORDINATOR]
     parameters = hass.data[DOMAIN][config_entry.entry_id][PARAMETERS]
     device_id = hass.data[DOMAIN][config_entry.entry_id][DEVICE_ID]
 
-    entities = []
+    entities: list[WolfLinkSensor] = []
     for parameter in parameters:
         if isinstance(parameter, Temperature):
             entities.append(WolfLinkTemperature(coordinator, parameter, device_id))
diff --git a/homeassistant/components/worldclock/sensor.py b/homeassistant/components/worldclock/sensor.py
index 74da12f7f61..069ca5c55e7 100644
--- a/homeassistant/components/worldclock/sensor.py
+++ b/homeassistant/components/worldclock/sensor.py
@@ -1,9 +1,14 @@
 """Support for showing the time in a different time zone."""
+from __future__ import annotations
+
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import CONF_NAME, CONF_TIME_ZONE
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 import homeassistant.util.dt as dt_util
 
 CONF_TIME_FORMAT = "time_format"
@@ -21,10 +26,15 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
 )
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
+async def async_setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    async_add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the World clock sensor."""
     name = config.get(CONF_NAME)
-    time_zone = dt_util.get_time_zone(config.get(CONF_TIME_ZONE))
+    time_zone = dt_util.get_time_zone(config[CONF_TIME_ZONE])
 
     async_add_entities(
         [
diff --git a/homeassistant/components/wsdot/sensor.py b/homeassistant/components/wsdot/sensor.py
index e0866f6f677..309b9a6a758 100644
--- a/homeassistant/components/wsdot/sensor.py
+++ b/homeassistant/components/wsdot/sensor.py
@@ -1,4 +1,6 @@
 """Support for Washington State Department of Transportation (WSDOT) data."""
+from __future__ import annotations
+
 from datetime import datetime, timedelta, timezone
 from http import HTTPStatus
 import logging
@@ -16,7 +18,10 @@ from homeassistant.const import (
     CONF_NAME,
     TIME_MINUTES,
 )
+from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -43,17 +48,22 @@ SCAN_INTERVAL = timedelta(minutes=3)
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
     {
         vol.Required(CONF_API_KEY): cv.string,
-        vol.Optional(CONF_TRAVEL_TIMES): [
+        vol.Required(CONF_TRAVEL_TIMES): [
             {vol.Required(CONF_ID): cv.string, vol.Optional(CONF_NAME): cv.string}
         ],
     }
 )
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+def setup_platform(
+    hass: HomeAssistant,
+    config: ConfigType,
+    add_entities: AddEntitiesCallback,
+    discovery_info: DiscoveryInfoType | None = None,
+) -> None:
     """Set up the WSDOT sensor."""
     sensors = []
-    for travel_time in config.get(CONF_TRAVEL_TIMES):
+    for travel_time in config[CONF_TRAVEL_TIMES]:
         name = travel_time.get(CONF_NAME) or travel_time.get(CONF_ID)
         sensors.append(
             WashingtonStateTravelTimeSensor(