Fix: Added missing function is_cat before loading model

app.py

@@ -2,8 +2,16 @@ from fastai.vision.all import load_learner, PILImage
 import gradio as gr
 from PIL import Image
 
+# Define the missing function
+def is_cat(x): 
+    return x[0].isupper()
+
 # Load the trained model
-model = load_learner('model.pkl')
+try:
+    model = load_learner('model.pkl')
+    print("✅ Model loaded successfully")
+except Exception as e:
+    print(f"❌ Error loading model: {e}")
 
 # Define a function to make predictions
 def predict(image):