From 12ce623ddf8dffacefea8372837d2866dc150149 Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Mon, 4 Jul 2022 20:47:47 +0100
Subject: [PATCH] typing fix

---
 src/textual/_styles_cache.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/textual/_styles_cache.py b/src/textual/_styles_cache.py
index 2047985e4..7d661e169 100644
--- a/src/textual/_styles_cache.py
+++ b/src/textual/_styles_cache.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import sys
-from typing import TYPE_CHECKING, Callable, Iterable
+from typing import TYPE_CHECKING, Callable, Iterable, List
 
 from rich.segment import Segment
 from rich.style import Style
@@ -10,7 +10,7 @@ from ._border import get_box, render_row
 from ._segment_tools import line_crop, line_pad, line_trim
 from ._types import Lines
 from .color import Color
-from .geometry import Spacing, Region, Size
+from .geometry import Region, Size, Spacing
 from .renderables.opacity import Opacity
 from .renderables.tint import Tint
 
@@ -25,7 +25,7 @@ if TYPE_CHECKING:
     from .widget import Widget
 
 
-RenderLineCallback: TypeAlias = Callable[[int], list[Segment]]
+RenderLineCallback: TypeAlias = Callable[[int], List[Segment]]
 
 
 class StylesCache: