Fix: Added missing function is_cat before loading model

app.py

@@ -2,6 +2,10 @@ from fastai.vision.all import load_learner
 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')