From ce0773885fa674fbd44bdc12fed65f9b4a3cd4ef Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Thu, 24 Nov 2022 17:42:57 +0800
Subject: [PATCH] fix alias

---
 src/textual/_layout.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/textual/_layout.py b/src/textual/_layout.py
index a87061b36..ca5233104 100644
--- a/src/textual/_layout.py
+++ b/src/textual/_layout.py
@@ -10,7 +10,7 @@ if TYPE_CHECKING:
     from .widget import Widget
 
 ArrangeResult: TypeAlias = "tuple[list[WidgetPlacement], set[Widget]]"
-DockArrangeResult: TypeAlias = "list[WidgetPlacement], set[Widget], Spacing]"
+DockArrangeResult: TypeAlias = "tuple[list[WidgetPlacement], set[Widget], Spacing]]"
 
 
 class WidgetPlacement(NamedTuple):