From 6b52a581c151914e59c8c367a03bc7309713a73b Mon Sep 17 00:00:00 2001
From: Sam Bull <git@sambull.org>
Date: Wed, 28 Jun 2023 11:38:15 +0100
Subject: gh-105993: Add possible `None` return type to
 `asyncio.EventLoop.start_tls` docs (#105995)

---
 Doc/library/asyncio-eventloop.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index 8d0022c..38f2e2f 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -895,6 +895,9 @@ TLS Upgrade
    object only because the coder caches *protocol*-side data and sporadically
    exchanges extra TLS session packets with *transport*.
 
+   In some situations (e.g. when the passed transport is already closing) this
+   may return ``None``.
+
    Parameters:
 
    * *transport* and *protocol* instances that methods like
-- 
cgit v0.12