Update app.py

app.py

@@ -4,9 +4,11 @@ from langchain.schema import AIMessage, HumanMessage
 from langchain_chroma import Chroma
 import gradio as gr
 from huggingface_hub import InferenceClient
+import os
 
 # Load environment variables
 CHROMA_PATH = "chroma"
+KEY = os.getenv["token"]
 
 # Hugging Face API setup
 repo_id = "mistralai/Mistral-7B-Instruct-v0.3"
@@ -44,6 +46,7 @@ class LLM:
     def generate_response(self, prompt):
         client = InferenceClient(
             provider="hyperbolic",
+            api_key = KEY
         )
         completion = client.chat.completions.create(
             model=repo_id,