Update app.py

app.py

@@ -2,7 +2,8 @@ import os
 import requests
 import gradio as gr
 
-groq_api_key = userdata.get("GROQ_API_KEY")
+groq_api_key = os.environ.get("GROQ_API_KEY")
+
 url = "https://api.groq.com/openai/v1/chat/completions"
 
 headers = {