syntax error

train_dreambooth_lora_sdxl_advanced.py

@@ -1322,7 +1322,7 @@ def main(args):
 
     # Generate class images if prior preservation is enabled.
     if args.with_prior_preservation:
-        if arg.class_data_dir == None:
+        if args.class_data_dir is None:
             class_folder = str(uuid.uuid4())
             args.class_data_dir = os.path.join("ariadne", class_folder)
         class_images_dir = Path(args.class_data_dir)