Update app.py

app.py

@@ -8,12 +8,15 @@ from langchain.prompts import PromptTemplate
 from langchain.chains import RetrievalQA
 import warnings
 from huggingface_hub import login
+import os
 
 
 # from transformers import AutoModelForCausalLM, AutoTokenizer
 from transformers import pipeline
 
-login(token="your_huggingface_api_token")
+hf_token = os.environ['llama_token']
+
+login(token=hf_token)
 
 
 llm = pipeline("text-generation", model = "meta-llama/Meta-Llama-3-70B-Instruct")