Enable strict type checks for onewire (#50422)

homeassistant/components/onewire/config_flow.py

@@ -1,9 +1,14 @@
 """Config flow for 1-Wire component."""
+from __future__ import annotations
+
+from typing import Any
+
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigFlow
 from homeassistant.const import CONF_HOST, CONF_PORT, CONF_TYPE
 from homeassistant.core import HomeAssistant
+from homeassistant.data_entry_flow import FlowResult
 
 from .const import (
     CONF_MOUNT_DIR,
@@ -32,7 +37,9 @@ DATA_SCHEMA_MOUNTDIR = vol.Schema(
 )
 
 
-async def validate_input_owserver(hass: HomeAssistant, data):
+async def validate_input_owserver(
+    hass: HomeAssistant, data: dict[str, Any]
+) -> dict[str, str]:
     """Validate the user input allows us to connect.
 
     Data has the keys from DATA_SCHEMA_OWSERVER with values provided by the user.
@@ -49,7 +56,9 @@ async def validate_input_owserver(hass: HomeAssistant, data):
     return {"title": host}
 
 
-def is_duplicate_owserver_entry(hass: HomeAssistant, user_input):
+def is_duplicate_owserver_entry(
+    hass: HomeAssistant, user_input: dict[str, Any]
+) -> bool:
     """Check existing entries for matching host and port."""
     for config_entry in hass.config_entries.async_entries(DOMAIN):
         if (
@@ -61,7 +70,9 @@ def is_duplicate_owserver_entry(hass: HomeAssistant, user_input):
     return False
 
 
-async def validate_input_mount_dir(hass: HomeAssistant, data):
+async def validate_input_mount_dir(
+    hass: HomeAssistant, data: dict[str, Any]
+) -> dict[str, str]:
     """Validate the user input allows us to connect.
 
     Data has the keys from DATA_SCHEMA_MOUNTDIR with values provided by the user.
@@ -82,16 +93,18 @@ class OneWireFlowHandler(ConfigFlow, domain=DOMAIN):
 
     VERSION = 1
 
-    def __init__(self):
+    def __init__(self) -> None:
         """Initialize 1-Wire config flow."""
-        self.onewire_config = {}
+        self.onewire_config: dict[str, Any] = {}
 
-    async def async_step_user(self, user_input=None):
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle 1-Wire config flow start.
 
         Let user manually input configuration.
         """
-        errors = {}
+        errors: dict[str, str] = {}
         if user_input is not None:
             self.onewire_config.update(user_input)
             if CONF_TYPE_OWSERVER == user_input[CONF_TYPE]:
@@ -105,7 +118,9 @@ class OneWireFlowHandler(ConfigFlow, domain=DOMAIN):
             errors=errors,
         )
 
-    async def async_step_owserver(self, user_input=None):
+    async def async_step_owserver(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle OWServer configuration."""
         errors = {}
         if user_input:
@@ -130,7 +145,9 @@ class OneWireFlowHandler(ConfigFlow, domain=DOMAIN):
             errors=errors,
         )
 
-    async def async_step_mount_dir(self, user_input=None):
+    async def async_step_mount_dir(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle SysBus configuration."""
         errors = {}
         if user_input:
@@ -157,7 +174,7 @@ class OneWireFlowHandler(ConfigFlow, domain=DOMAIN):
             errors=errors,
         )
 
-    async def async_step_import(self, platform_config):
+    async def async_step_import(self, platform_config: dict[str, Any]) -> FlowResult:
         """Handle import configuration from YAML."""
         # OWServer
         if platform_config[CONF_TYPE] == CONF_TYPE_OWSERVER: