diff --git a/homeassistant/components/xbee/sensor.py b/homeassistant/components/xbee/sensor.py
index 6993bdbc0b7..1d1a4b99705 100644
--- a/homeassistant/components/xbee/sensor.py
+++ b/homeassistant/components/xbee/sensor.py
@@ -1,4 +1,6 @@
 """Support for XBee Zigbee sensors."""
+from __future__ import annotations
+
 from binascii import hexlify
 import logging
 
@@ -7,6 +9,9 @@ from xbee_helper.exceptions import ZigBeeException, ZigBeeTxFailure
 
 from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.const import CONF_TYPE, TEMP_CELSIUS
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 from . import DOMAIN, PLATFORM_SCHEMA, XBeeAnalogIn, XBeeAnalogInConfig, XBeeConfig
 
@@ -25,14 +30,19 @@ 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 XBee Zigbee platform.
 
     Uses the 'type' config value to work out which type of Zigbee sensor we're
     dealing with and instantiates the relevant classes to handle it.
     """
     zigbee_device = hass.data[DOMAIN]
-    typ = config.get(CONF_TYPE)
+    typ = config[CONF_TYPE]
 
     try:
         sensor_class, config_class = TYPE_CLASSES[typ]
diff --git a/homeassistant/components/zabbix/sensor.py b/homeassistant/components/zabbix/sensor.py
index 36207842285..6d1b0b186d1 100644
--- a/homeassistant/components/zabbix/sensor.py
+++ b/homeassistant/components/zabbix/sensor.py
@@ -1,4 +1,6 @@
 """Support for Zabbix sensors."""
+from __future__ import annotations
+
 import logging
 
 import voluptuous as vol
@@ -6,7 +8,10 @@ import voluptuous as vol
 from homeassistant.components import zabbix
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import 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
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -30,13 +35,18 @@ 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 Zabbix sensor platform."""
-    sensors = []
+    sensors: list[ZabbixTriggerCountSensor] = []
 
     if not (zapi := hass.data[zabbix.DOMAIN]):
         _LOGGER.error("Zabbix integration hasn't been loaded? zapi is None")
-        return False
+        return
 
     _LOGGER.info("Connected to Zabbix API Version %s", zapi.api_version())
 
@@ -51,27 +61,27 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
             if not hostids:
                 # We need hostids
                 _LOGGER.error("If using 'individual', must specify hostids")
-                return False
+                return
 
             for hostid in hostids:
                 _LOGGER.debug("Creating Zabbix Sensor: %s", str(hostid))
-                sensor = ZabbixSingleHostTriggerCountSensor(zapi, [hostid], name)
-                sensors.append(sensor)
+                sensors.append(ZabbixSingleHostTriggerCountSensor(zapi, [hostid], name))
         else:
             if not hostids:
                 # Single sensor that provides the total count of triggers.
                 _LOGGER.debug("Creating Zabbix Sensor")
-                sensor = ZabbixTriggerCountSensor(zapi, name)
+                sensors.append(ZabbixTriggerCountSensor(zapi, name))
             else:
                 # Single sensor that sums total issues for all hosts
                 _LOGGER.debug("Creating Zabbix Sensor group: %s", str(hostids))
-                sensor = ZabbixMultipleHostTriggerCountSensor(zapi, hostids, name)
-            sensors.append(sensor)
+                sensors.append(
+                    ZabbixMultipleHostTriggerCountSensor(zapi, hostids, name)
+                )
+
     else:
         # Single sensor that provides the total count of triggers.
         _LOGGER.debug("Creating Zabbix Sensor")
-        sensor = ZabbixTriggerCountSensor(zapi)
-        sensors.append(sensor)
+        sensors.append(ZabbixTriggerCountSensor(zapi))
 
     add_entities(sensors)
 
diff --git a/homeassistant/components/ziggo_mediabox_xl/media_player.py b/homeassistant/components/ziggo_mediabox_xl/media_player.py
index d3493f0dc35..59e6e56e2c5 100644
--- a/homeassistant/components/ziggo_mediabox_xl/media_player.py
+++ b/homeassistant/components/ziggo_mediabox_xl/media_player.py
@@ -1,4 +1,6 @@
 """Support for interface with a Ziggo Mediabox XL."""
+from __future__ import annotations
+
 import logging
 import socket
 
@@ -22,7 +24,10 @@ from homeassistant.const import (
     STATE_PAUSED,
     STATE_PLAYING,
 )
+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__)
 
@@ -43,18 +48,22 @@ 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 Ziggo Mediabox XL platform."""
 
     hass.data[DATA_KNOWN_DEVICES] = known_devices = set()
 
     # Is this a manual configuration?
-    if config.get(CONF_HOST) is not None:
-        host = config.get(CONF_HOST)
+    if (host := config.get(CONF_HOST)) is not None:
         name = config.get(CONF_NAME)
         manual_config = True
     elif discovery_info is not None:
-        host = discovery_info.get("host")
+        host = discovery_info["host"]
         name = discovery_info.get("name")
         manual_config = False
     else:
diff --git a/homeassistant/components/zoneminder/sensor.py b/homeassistant/components/zoneminder/sensor.py
index 90c5f8d78eb..53ed16c037b 100644
--- a/homeassistant/components/zoneminder/sensor.py
+++ b/homeassistant/components/zoneminder/sensor.py
@@ -12,7 +12,10 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
 )
 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 ZONEMINDER_DOMAIN
 
@@ -59,12 +62,17 @@ 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 ZoneMinder sensor platform."""
     include_archived = config[CONF_INCLUDE_ARCHIVED]
     monitored_conditions = config[CONF_MONITORED_CONDITIONS]
 
-    sensors = []
+    sensors: list[SensorEntity] = []
     for zm_client in hass.data[ZONEMINDER_DOMAIN].values():
         if not (monitors := zm_client.get_monitors()):
             _LOGGER.warning("Could not fetch any monitors from ZoneMinder")