Type annotation changes

app.py

@@ -37,8 +37,8 @@ def create_formatted_history(history_messages: List[dict]) -> List[Tuple[str, st
     return formatted_history
 
 def chat(
-    message: str, state, client=LLM.client
-) -> Generator[Tuple[List[Tuple[str, str]], List[Tuple[str, str]]], None, None]:
+    message: str, state: List[Dict[str, str]], client = LLM.client
+) -> Generator[Tuple[List[Tuple[str, str]], List[Dict[str, str]]], None, None]:
     history_messages = state
     if history_messages == None:
         history_messages = []