diff --git a/supervision/dataset/formats/pascal_voc.py b/supervision/dataset/formats/pascal_voc.py
index 32ba7a74..ba77ddf8 100644
--- a/supervision/dataset/formats/pascal_voc.py
+++ b/supervision/dataset/formats/pascal_voc.py
@@ -271,7 +271,8 @@ def detections_from_xml_obj(
     annotation = Detections(
         xyxy=xyxy.astype(np.float32),
         mask=np.array(masks).astype(bool) if with_masks else None,
-        class_id=class_id)
+        class_id=class_id,
+    )
 
     return annotation, extended_classes
 
diff --git a/test/dataset/formats/test_pascal_voc.py b/test/dataset/formats/test_pascal_voc.py
index fa58f257..23aa65a4 100644
--- a/test/dataset/formats/test_pascal_voc.py
+++ b/test/dataset/formats/test_pascal_voc.py
@@ -1,4 +1,5 @@
 from contextlib import ExitStack as DoesNotRaise
+from test.test_utils import mock_detections
 from typing import List, Optional
 
 import defusedxml.ElementTree as ET
@@ -6,10 +7,10 @@ import numpy as np
 import pytest
 
 from supervision.dataset.formats.pascal_voc import (
+    detections_from_xml_obj,
     object_to_pascal_voc,
-    parse_polygon_points, detections_from_xml_obj,
+    parse_polygon_points,
 )
-from test.test_utils import mock_detections
 
 
 def are_xml_elements_equal(elem1, elem2):
@@ -130,8 +131,7 @@ NO_DETECTIONS = """<annotation></annotation>"""
             (100, 100),
             False,
             mock_detections(
-                xyxy=np.array([[0, 0, 10, 10], [10, 10, 20, 20]]),
-                class_id=[0, 0]
+                xyxy=np.array([[0, 0, 10, 10], [10, 10, 20, 20]]), class_id=[0, 0]
             ),
             DoesNotRaise(),
         ),