fix linting

kaldi_data_generator/main.py

@@ -314,7 +314,9 @@ class HTRDataGenerator:
 
                 if "\n" in text.strip():
                     elem_id = res["element"]["id"]
-                    raise ValueError(f"Newlines are not allowed in line transcriptions - {page_id} - {elem_id} - {text}")
+                    raise ValueError(
+                        f"Newlines are not allowed in line transcriptions - {page_id} - {elem_id} - {text}"
+                    )
 
                 if "zone" in res:
                     polygon = res["zone"]["polygon"]