Update app.py

app.py

@@ -7,17 +7,16 @@ GEMINI_API_KEY = os.environ.get("GEMINI_API_KEY")
 if not GEMINI_API_KEY:
     raise ValueError("❌ GEMINI_API_KEY not found. Set it in Hugging Face Secrets.")
 
-# --- Configure GenAI ---
-genai.configure(api_key=GEMINI_API_KEY)
+# --- Initialize the client (no configure method!) ---
+client = genai.Client()
 
-# --- Initialize Gemini model ---
-model = genai.GenerativeModel("gemini-2.5-flash")
-chat_session = model.start_chat()
+# --- Create chat session ---
+chat = client.chats.create(model="gemini-2.5-flash")
 
 # --- Define chat function ---
 def chat_with_gemini(user_input, history):
     try:
-        response = chat_session.send_message(user_input)
+        response = chat.send_message(user_input)
         history.append((user_input, response.text))
         return history, history
     except Exception as e: