Update app.py

app.py

@@ -1,6 +1,15 @@
 import gradio as gr
 from langchain import PromptTemplate, LLMChain
 from langchain import HuggingFaceHub
+import os
+from dotenv import load_dotenv
+import chainlit as cl
+
+# Load environment variables from .env file
+load_dotenv()
+
+
+HUGGINGFACEHUB_API_TOKEN = os.getenv("HUGGINGFACE_API_TOKEN")
 
 repo_id = "tiiuae/falcon-7b-instruct"
 llm = HuggingFaceHub(huggingfacehub_api_token=HUGGINGFACE_API_TOKEN,