Add more specific type hints

homeassistant/components/alexa/intent.py

@@ -180,7 +180,7 @@ async def async_handle_intent(hass, message):
     return alexa_response.as_dict()
 
 
-def resolve_slot_data(key, request) -> dict:
+def resolve_slot_data(key: str, request: dict) -> dict[str, str]:
     """Check slot request for synonym resolutions."""
     # Default to the spoken slot value if more than one or none are found. Always
     # passes the id and name of the nearest possible slot resolution. For