Update app.py

app.py

@@ -159,7 +159,7 @@ def calculate_similarity(base_text, candidate_texts):
     return similarities
 
 @app.get('/autocomplete')
-async def autocomplete(q: str = Query(..., title='query'), background_tasks: BackgroundTasks):
+async def autocomplete(q: str = Query(..., title='query'), background_tasks: BackgroundTasks = BackgroundTasks()): # Corrección: Mover background_tasks al final
     global message_history
     message_history.append(('user', q))