Update app.py

app.py

@@ -5,6 +5,12 @@ from langchain.chains import ConversationChain
 from langchain.chains.conversation.memory import ConversationSummaryMemory
 from transformers import pipeline
 
+from huggingface_hub import login
+
+# Add your Hugging Face token here
+HUGGINGFACE_TOKEN = os.getenv("HF")
+login(token=HUGGINGFACE_TOKEN)
+
 # Initialize the text classifier for guardrails
 classifier = pipeline("text-classification", model="meta-llama/Prompt-Guard-86M")