diff --git a/litellm/llms/anthropic/experimental_pass_through/messages/handler.py b/litellm/llms/anthropic/experimental_pass_through/messages/handler.py
index c6d3db04278..a94c085adbb 100644
--- a/litellm/llms/anthropic/experimental_pass_through/messages/handler.py
+++ b/litellm/llms/anthropic/experimental_pass_through/messages/handler.py
@@ -8,7 +8,17 @@
 import asyncio
 import contextvars
 from functools import partial
-from typing import Any, AsyncIterator, Coroutine, Dict, Iterator, List, Optional, Union, cast
+from typing import (
+    Any,
+    AsyncIterator,
+    Coroutine,
+    Dict,
+    Iterator,
+    List,
+    Optional,
+    Union,
+    cast,
+)
 
 import litellm
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj