Update app.py

app.py

@@ -7,6 +7,7 @@ import PyPDF2
 import faiss
 import os
 import httpx
+import asyncio
 
 mistral_api_key = os.environ.get("API_KEY")
 
@@ -36,7 +37,7 @@ def rag_pdf(pdfs: list, question: str) -> str:
     text_retrieved = "\n\n".join(retrieved_chunk)
     return text_retrieved
 
-def ask_mistral(message: str, history: list):
+async def ask_mistral(message: str, history: list):
     messages = []
     pdfs = message["files"]
     for couple in history: