From 364ff5782fe7c644a426790356eb0b96f7c84f4a Mon Sep 17 00:00:00 2001
From: Andrew Miller <info@akmiller.co.uk>
Date: Tue, 2 Jul 2024 13:11:07 +0100
Subject: [PATCH] added ref docs

---
 docs/ref/contrib/messages.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/ref/contrib/messages.txt b/docs/ref/contrib/messages.txt
index 7fdf40f47b..2a591f0201 100644
--- a/docs/ref/contrib/messages.txt
+++ b/docs/ref/contrib/messages.txt
@@ -258,6 +258,11 @@ The ``Message`` class
       the lowercase version of the name of the associated constant, but this
       can be changed if you need by using the :setting:`MESSAGE_TAGS` setting.
 
+    * ``extra_kwargs``: This variable accepts all further keyword arguments
+      to the Message class. The default behaviour is that this does nothing,
+      but allows third-party storage classes to extend the behaviour of this
+      class.
+
 Creating custom message levels
 ------------------------------