Update app.py

app.py

@@ -20,6 +20,7 @@ import torch
 import tqdm 
 import accelerate
 
+llm_model = "mistralai/Mistral-7B-Instruct-v0.2"
 
 
 # default_persist_directory = './chroma_HF/'
@@ -197,7 +198,6 @@ def demo():
         qa_chain = gr.State()
         collection_name = gr.State()
         pdf_directory = '/home/user/app/pdfs'
-        llm_model = "mistralai/Mistral-7B-Instruct-v0.2"
 
         def process_pdfs():
             # List all PDF files in the directory