From 28a799a6f7744367599078ef19b571d6758cf271 Mon Sep 17 00:00:00 2001
From: Antoni Szych <antoni.szych@rtbhouse.com>
Date: Thu, 1 Feb 2024 21:18:30 +0100
Subject: [PATCH] docs: document description field of Marker (#507)

---
 voluptuous/schema_builder.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/voluptuous/schema_builder.py b/voluptuous/schema_builder.py
index 6ad8758..f7427f8 100644
--- a/voluptuous/schema_builder.py
+++ b/voluptuous/schema_builder.py
@@ -1020,7 +1020,11 @@ def __repr__(self):
 
 
 class Marker(object):
-    """Mark nodes for special treatment."""
+    """Mark nodes for special treatment.
+
+    `description` is an optional field, unused by Voluptuous itself, but can be used
+    introspected by any external tool, for example to generate schema documentation.
+    """
 
     def __init__(
         self,