From ce39259eb30a75190ff49f77a3a6c1a178b096e5 Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Tue, 30 Jul 2024 14:05:25 +0100
Subject: [PATCH] docstring

---
 src/textual/widgets/_tabs.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/textual/widgets/_tabs.py b/src/textual/widgets/_tabs.py
index fbf8355a29..1cd0668dc0 100644
--- a/src/textual/widgets/_tabs.py
+++ b/src/textual/widgets/_tabs.py
@@ -607,7 +607,11 @@ def _highlight_active(
             underline.show_highlight = True
 
             def move_underline(animate: bool) -> None:
-                """Move the tab underline."""
+                """Move the tab underline.
+
+                Args:
+                    animate: animate the underline to its new position.
+                """
                 try:
                     active_tab = self.query_one("#tabs-list > Tab.-active")
                 except NoMatches: