Update app.py

app.py

@@ -4,7 +4,7 @@ import os
 import requests
 from gradio_client import Client
 
-API_TOKEN = os.getenv('API_TOKEN')
+API_TOKEN = os.environ.get('API_TOKEN')
 API_URL = "https://api-inference.huggingface.co/models/mistralai/Mixtral-8x7B-Instruct-v0.1"
 headers = {"Authorization": "Bearer {API_TOKEN}"}