From a69ebb7ac4584e3a91497e44fd65b4bf86d52815 Mon Sep 17 00:00:00 2001
From: Yujong Lee <yujong@berri.ai>
Date: Mon, 21 Sep 2026 20:34:39 +0000
Subject: [PATCH] feat(cache): add the unsupported operation error

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 litellm-rust/crates/cache/src/error.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/litellm-rust/crates/cache/src/error.rs b/litellm-rust/crates/cache/src/error.rs
index ff3ff6572d4..2418ab978dc 100644
--- a/litellm-rust/crates/cache/src/error.rs
+++ b/litellm-rust/crates/cache/src/error.rs
@@ -6,4 +6,6 @@ pub enum Error {
     InvalidEntry,
     #[error("flushing Redis requires an explicit namespace")]
     UnscopedFlush,
+    #[error("cache backend does not support this operation")]
+    UnsupportedOperation,
 }