From 83c09b3cfd1b9cc4997df726bd8ae4178e71be30 Mon Sep 17 00:00:00 2001
From: Dave Pearson <davep@davep.org>
Date: Tue, 2 May 2023 15:51:18 +0100
Subject: [PATCH] Add a missing type hint

Looks like this has been missing since DirectoryTree was first written.
---
 src/textual/widgets/_directory_tree.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/textual/widgets/_directory_tree.py b/src/textual/widgets/_directory_tree.py
index 963cce70a..d5ad73eb4 100644
--- a/src/textual/widgets/_directory_tree.py
+++ b/src/textual/widgets/_directory_tree.py
@@ -100,7 +100,7 @@ class DirectoryTree(Tree[DirEntry]):
             disabled=disabled,
         )
 
-    def process_label(self, label: TextType):
+    def process_label(self, label: TextType) -> Text:
         """Process a str or Text into a label. Maybe overridden in a subclass to modify how labels are rendered.
 
         Args: