Update app.py

app.py

@@ -8,6 +8,8 @@ import pickle
 import gradio as gr
 from langchain.embeddings.openai import OpenAIEmbeddings
 from io import StringIO
+from huggingface_hub import hf_hub_download
+from huggingface_hub import login
 
 openai.api_key = os.getenv("OPENAI_API_KEY")
 hf_token = os.getenv("HF_TOKEN")