diff --git a/litellm/llms/bedrock/passthrough/transformation.py b/litellm/llms/bedrock/passthrough/transformation.py
index 4eba0960232..e0f69f29e8d 100644
--- a/litellm/llms/bedrock/passthrough/transformation.py
+++ b/litellm/llms/bedrock/passthrough/transformation.py
@@ -206,13 +206,11 @@ class BedrockPassthroughConfig(BaseAWSLLM, BedrockModelInfo, BedrockEventStreamD
                 # Application Inference Profile ARNs don't encode provider info in the ARN
                 # itself. Try to derive the provider from the original LiteLLM model name
                 # (e.g. "global.anthropic.claude-opus-4-7") stored in logging context.
-                fallback_model: Final = litellm_logging_obj.model_call_details.get(
-                    "litellm_params", {}
-                ).get("model", "")
+                fallback_model: Final = litellm_logging_obj.model_call_details.get("litellm_params", {}).get(
+                    "model", ""
+                )
                 if fallback_model:
-                    invoke_provider = AmazonInvokeConfig.get_bedrock_invoke_provider(
-                        fallback_model
-                    )
+                    invoke_provider = AmazonInvokeConfig.get_bedrock_invoke_provider(fallback_model)
             if invoke_provider is None:
                 verbose_logger.warning(
                     f"Could not determine Bedrock invoke provider for model: {model!r}. "
diff --git a/tests/test_litellm/llms/bedrock/passthrough/test_bedrock_passthrough_transformation.py b/tests/test_litellm/llms/bedrock/passthrough/test_bedrock_passthrough_transformation.py
index d17d61a25ed..d564bff0032 100644
--- a/tests/test_litellm/llms/bedrock/passthrough/test_bedrock_passthrough_transformation.py
+++ b/tests/test_litellm/llms/bedrock/passthrough/test_bedrock_passthrough_transformation.py
@@ -1,6 +1,5 @@
 from unittest.mock import MagicMock, patch
 
-
 from litellm.llms.bedrock.passthrough.transformation import BedrockPassthroughConfig
 
 
@@ -524,13 +523,9 @@ def test_handle_logging_collected_chunks_inference_profile_arn_falls_back_gracef
 
     # Intercept the decoder so we don't need real botocore event-stream bytes.
     # The import is done inside handle_logging_collected_chunks, so patch the source module.
-    with patch(
-        "litellm.llms.bedrock.chat.get_bedrock_event_stream_decoder"
-    ) as mock_decoder:
+    with patch("litellm.llms.bedrock.chat.get_bedrock_event_stream_decoder") as mock_decoder:
         mock_chunk_obj = MagicMock()
-        mock_chunk_obj._chunk_parser.return_value = (
-            {}
-        )  # not a valid GenericStreamingChunk
+        mock_chunk_obj._chunk_parser.return_value = {}  # not a valid GenericStreamingChunk
         mock_decoder.return_value = mock_chunk_obj
 
         # Must not raise ValueError.