Add missing type annotation

bodograumann · bodograumann · commit 3908e79baf27 · 2023-07-20T16:54:10.000+02:00
diff --git a/git/index/fun.py b/git/index/fun.py
@@ -76,7 +76,7 @@ def hook_path(name: str, git_dir: PathLike) -> str:
     return osp.join(git_dir, "hooks", name)
 
 
-def _has_file_extension(path):
+def _has_file_extension(path: str) -> str:
     return osp.splitext(path)[1]
 
 
