From 3f426bc05c5620e612a54e21fb6562e965ba24bd Mon Sep 17 00:00:00 2001
From: arithmetic1728 <58957152+arithmetic1728@users.noreply.github.com>
Date: Fri, 10 Nov 2023 20:47:17 -0800
Subject: [PATCH] docs: update user cred doc (#1414)

---
 google/oauth2/credentials.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/google/oauth2/credentials.py b/google/oauth2/credentials.py
index 4643fdbea..ae204b45a 100644
--- a/google/oauth2/credentials.py
+++ b/google/oauth2/credentials.py
@@ -54,8 +54,9 @@
 class Credentials(credentials.ReadOnlyScoped, credentials.CredentialsWithQuotaProject):
     """Credentials using OAuth 2.0 access and refresh tokens.
 
-    The credentials are considered immutable. If you want to modify the
-    quota project, use :meth:`with_quota_project` or ::
+    The credentials are considered immutable except the tokens and the token
+    expiry, which are updated after refresh. If you want to modify the quota
+    project, use :meth:`with_quota_project` or ::
 
         credentials = credentials.with_quota_project('myproject-123')