regex = asset_definition["regex"]
                 if re.match(regex, filename):
                     asset_type = asset_name
                     break
             grouped_files.append(
-                {"prefix": prefix, "filename": filename, "asset_type": asset_type, "item_id": item_id}
+                {
+                    "prefix": prefix,
+                    "filename": filename,
+                    "asset_type": asset_type,
+                    "item_id": item_id,
+                }
             )
         else:
             print(f"Warning: skipping file. No id match found: {filename}")
     # At this point, files are labeled with type and id. Now, group them by id
     sorted_list = sorted(grouped_files, key=lambda x: x["item_id"])