add auth

app.py

@@ -192,10 +192,5 @@ iface = gr.Interface(
 )
 
 valid_users = [("admin", "password123"), ("user1", "pass456")]
-user_db = {"admin": "admin", "foo": "bar"}
-# iface.launch()
-if __name__ == "__main__":
-    iface.launch(
-        auth=lambda u, p: user_db.get(u) == p,
-        auth_message="This is a welcome message",
-    )
+
+iface.launch(auth=valid_users)