added the None type check

app.py

@@ -85,7 +85,8 @@ def show_final_layer_attention_maps(
         # Forward pass through the model
         outputs = model(**tensor, output_attentions=True)
 
-        if outputs.attentions is None:
+        print(type(outputs.attentions[0]))
+        if outputs.attentions[0] is None:
             print("Attention outputs are None.")
             return None