Update app.py

app.py

@@ -19,10 +19,20 @@ from google.api_core import exceptions
 # This specifically fixes the 'INVALID_ARGUMENT' error you received
 
 # Initialize the client with explicit API version 'v1'
-client = genai.Client(
-    api_key=userdata.get('GOOGLE_API_KEY'),
-    http_options=types.HttpOptions(api_version='v1') 
-)
+import os
+import time
+import pandas as pd
+import gradio as gr
+from google import genai
+from google.genai import types
+from google.api_core import exceptions
+
+# SECURE FIX: Use os.environ for Hugging Face Spaces
+# The SDK will automatically use 'GOOGLE_API_KEY' if it exists in environment
+client = genai.Client(api_key=os.environ.get('GOOGLE_API_KEY'))
+
+# Use gemini-1.5-flash for the best free-tier stability
+FREE_STABLE_MODEL = "gemini-flash-latest"
 
 # --- Data Preparation ---
 df_credit = pd.DataFrame({'ID': [1111, 2222, 3333, 4444, 5555], 'Credit_Score': [455, 685, 825, 840, 350]})