Enforce strict typing for Tile (#53410)

homeassistant/components/tile/config_flow.py

@@ -1,10 +1,15 @@
 """Config flow to configure the Tile integration."""
+from __future__ import annotations
+
+from typing import Any
+
 from pytile import async_login
 from pytile.errors import TileError
 import voluptuous as vol
 
 from homeassistant import config_entries
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.data_entry_flow import FlowResult
 from homeassistant.helpers import aiohttp_client
 
 from .const import DOMAIN
@@ -15,23 +20,25 @@ class TileFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
 
     VERSION = 1
 
-    def __init__(self):
+    def __init__(self) -> None:
         """Initialize the config flow."""
         self.data_schema = vol.Schema(
             {vol.Required(CONF_USERNAME): str, vol.Required(CONF_PASSWORD): str}
         )
 
-    async def _show_form(self, errors=None):
+    async def _show_form(self, errors: dict[str, Any] | None = None) -> FlowResult:
         """Show the form to the user."""
         return self.async_show_form(
             step_id="user", data_schema=self.data_schema, errors=errors or {}
         )
 
-    async def async_step_import(self, import_config):
+    async def async_step_import(self, import_config: dict[str, Any]) -> FlowResult:
         """Import a config entry from configuration.yaml."""
         return await self.async_step_user(import_config)
 
-    async def async_step_user(self, user_input=None):
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle the start of the config flow."""
         if not user_input:
             return await self._show_form()