Cleanup (#168)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Kalen Michael <kalenmike@gmail.com>

tests/test_cli.py

@@ -1,3 +1,5 @@
+# Ultralytics YOLO 🚀, GPL-3.0 license
+
 import os
 from pathlib import Path
 

tests/test_engine.py

@@ -1,3 +1,5 @@
+# Ultralytics YOLO 🚀, GPL-3.0 license
+
 from ultralytics import YOLO
 from ultralytics.yolo.configs import get_config
 from ultralytics.yolo.utils import DEFAULT_CONFIG, ROOT

tests/test_python.py

@@ -1,3 +1,5 @@
+# Ultralytics YOLO 🚀, GPL-3.0 license
+
 from pathlib import Path
 
 from ultralytics import YOLO