diff --git a/litellm/responses/utils.py b/litellm/responses/utils.py
index 70e5cde6640..f3d28fa114a 100644
--- a/litellm/responses/utils.py
+++ b/litellm/responses/utils.py
@@ -1128,7 +1128,9 @@ class ResponseAPILoggingUtils:
                     text_tokens=getattr(response_api_usage.input_tokens_details, "text_tokens", None),
                     image_tokens=getattr(response_api_usage.input_tokens_details, "image_tokens", None),
                     cache_write_tokens=getattr(response_api_usage.input_tokens_details, "cache_write_tokens", None),
-                    cached_tokens_details=getattr(response_api_usage.input_tokens_details, "cached_tokens_details", None),
+                    cached_tokens_details=getattr(
+                        response_api_usage.input_tokens_details, "cached_tokens_details", None
+                    ),
                 )
         completion_tokens_details: CompletionTokensDetailsWrapper | None = None
         output_tokens_details: Final[OutputTokensDetails | None] = getattr(