From aadf7169021fbcf4a61636eecb64a5affc7fc286 Mon Sep 17 00:00:00 2001
From: Talia Stocks <928827+taliastocks@users.noreply.github.com>
Date: Fri, 14 Mar 2025 12:27:41 -0400
Subject: [PATCH] Update pre_commit/commands/hook_impl.py

---
 pre_commit/commands/hook_impl.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pre_commit/commands/hook_impl.py b/pre_commit/commands/hook_impl.py
index bd936133..d77b7627 100644
--- a/pre_commit/commands/hook_impl.py
+++ b/pre_commit/commands/hook_impl.py
@@ -113,7 +113,7 @@ def _rev_exists(rev: str) -> bool:
     return not subprocess.call(('git', 'rev-list', '--quiet', rev))
 
 
-def _is_ancestor(ancestor: str, rev: str):
+def _is_ancestor(ancestor: str, rev: str) -> bool:
     return not subprocess.call(
         ('git', 'merge-base', '--is-ancestor', ancestor, rev),
     )