Check discovery_info is available and add setup type hints (#63782)

* Add setup type hints to ebusd

* Add setup type hints to envisalink

* Add setup type hints to sisyphus

* Add setup type hints to iperf3

* Add setup type hints to greeneye_monitor

* Revert "Add setup type hints to iperf3"

This reverts commit 9a382e4ba3.

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

homeassistant/components/envisalink/alarm_control_panel.py

@@ -1,4 +1,6 @@
 """Support for Envisalink-based alarm control panels (Honeywell/DSC)."""
+from __future__ import annotations
+
 import logging
 
 import voluptuous as vol
@@ -24,9 +26,11 @@ from homeassistant.const import (
     STATE_ALARM_TRIGGERED,
     STATE_UNKNOWN,
 )
-from homeassistant.core import ServiceCall, callback
+from homeassistant.core import HomeAssistant, ServiceCall, 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 (
     CONF_PANIC,
@@ -51,8 +55,15 @@ ALARM_KEYPRESS_SCHEMA = vol.Schema(
 )
 
 
-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:
     """Perform the setup for Envisalink alarm panels."""
+    if not discovery_info:
+        return
     configured_partitions = discovery_info["partitions"]
     code = discovery_info[CONF_CODE]
     panic_type = discovery_info[CONF_PANIC]
@@ -93,8 +104,6 @@ async def async_setup_platform(hass, config, async_add_entities, discovery_info=
         schema=ALARM_KEYPRESS_SCHEMA,
     )
 
-    return True
-
 
 class EnvisalinkAlarm(EnvisalinkDevice, AlarmControlPanelEntity):
     """Representation of an Envisalink-based alarm panel."""