From dd9c35b86facb358057cba0fa27a933afb657572 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Mon, 9 Nov 2026 03:05:25 +0000
Subject: [PATCH] fix(auth): fill prefetch with serialized cache payloads

---
 litellm/proxy/auth/auth_object_prefetch.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litellm/proxy/auth/auth_object_prefetch.py b/litellm/proxy/auth/auth_object_prefetch.py
index 865113320b0..c7f0bea3f17 100644
--- a/litellm/proxy/auth/auth_object_prefetch.py
+++ b/litellm/proxy/auth/auth_object_prefetch.py
@@ -297,8 +297,9 @@ async def _write_back(
     )
     shared: Final = cache.shared
     if generation is not None:
+        assert shared is not None
         for cache_key, payload, ttl in payloads:
-            cache.set_if_generation(cache_key, payload, generation, ttl)
+            shared.set_if_generation(cache_key, payload, generation, ttl)
         return
     if shared is not None:
         with service_target(AUTH_OBJECTS_TARGET):