style: format modified files with ruff

litellm/cost_calculator.py

@@ -1659,9 +1659,7 @@ def completion_cost(
         )
         requested_model: Final = model
         request_pricing_provider: Final = (
-            custom_llm_provider
-            if isinstance(custom_llm_provider, str)
-            else _get_provider_for_cost_calc(model)
+            custom_llm_provider if isinstance(custom_llm_provider, str) else _get_provider_for_cost_calc(model)
         )
         raw_candidates: Final = (
             (
@@ -1686,9 +1684,7 @@ def completion_cost(
 
         for idx, (model, candidate_pricing_provider) in enumerate(potential_model_names):
             try:
-                candidate_custom_llm_provider: str | None = (
-                    candidate_pricing_provider or request_pricing_provider
-                )
+                candidate_custom_llm_provider: str | None = candidate_pricing_provider or request_pricing_provider
                 if verbose_logger.isEnabledFor(logging.DEBUG):
                     verbose_logger.debug("selected model name for cost calculation: %s", model)
 

litellm/llms/openai_like/chat/transformation.py

@@ -151,9 +151,7 @@ class OpenAILikeChatConfig(OpenAIGPTConfig):
         json_mode: bool | None = None,
     ) -> ModelResponse:
         resolved_custom_llm_provider = (
-            litellm_params.get("custom_llm_provider")
-            if isinstance(litellm_params, dict)
-            else None
+            litellm_params.get("custom_llm_provider") if isinstance(litellm_params, dict) else None
         ) or (
             getattr(model_response, "_hidden_params", {}).get("custom_llm_provider")
             if hasattr(model_response, "_hidden_params") and isinstance(getattr(model_response, "_hidden_params"), dict)

tests/unit/llms/groq/test_groq_cost_calculator.py

@@ -122,4 +122,3 @@ def test_groq_openai_aliased_completion_cost():
     )
     c_raw = litellm.completion_cost(completion_response=raw_resp, model="groq/openai/gpt-oss-120b")
     assert c_raw == pytest.approx(2.295e-05)
-