diff --git a/litellm/llms/anthropic/pass_through/messages/transformation.py b/litellm/llms/anthropic/pass_through/messages/transformation.py
index effc257c075..231f5887e5c 100644
--- a/litellm/llms/anthropic/pass_through/messages/transformation.py
+++ b/litellm/llms/anthropic/pass_through/messages/transformation.py
@@ -1,5 +1,5 @@
 from collections.abc import AsyncIterator, Mapping, Sequence
-from typing import ClassVar, Final, cast
+from typing import ClassVar, Final, cast  # noqa: TID251  # cast narrows untyped optional_params.get()
 
 import httpx