diff --git a/litellm/integrations/langfuse/langfuse_handler.py b/litellm/integrations/langfuse/langfuse_handler.py
index f8fec40ab84..c0088c8a1cf 100644
--- a/litellm/integrations/langfuse/langfuse_handler.py
+++ b/litellm/integrations/langfuse/langfuse_handler.py
@@ -36,7 +36,12 @@ class LangFuseHandler:
 
         """
         temp_langfuse_logger: Optional[LangFuseLogger] = globalLangfuseLogger
-        if LangFuseHandler._dynamic_langfuse_credentials_are_passed(standard_callback_dynamic_params) is False:
+        if (
+            LangFuseHandler._dynamic_langfuse_credentials_are_passed(
+                standard_callback_dynamic_params
+            )
+            is False
+        ):
             return LangFuseHandler._return_global_langfuse_logger(
                 globalLangfuseLogger=globalLangfuseLogger,
                 in_memory_dynamic_logger_cache=in_memory_dynamic_logger_cache,
@@ -56,9 +61,11 @@ class LangFuseHandler:
 
         # if not cached, create a new langfuse logger and cache it
         if temp_langfuse_logger is None:
-            temp_langfuse_logger = LangFuseHandler._create_langfuse_logger_from_credentials(
-                credentials=credentials_dict,
-                in_memory_dynamic_logger_cache=in_memory_dynamic_logger_cache,
+            temp_langfuse_logger = (
+                LangFuseHandler._create_langfuse_logger_from_credentials(
+                    credentials=credentials_dict,
+                    in_memory_dynamic_logger_cache=in_memory_dynamic_logger_cache,
+                )
             )
 
         return temp_langfuse_logger
@@ -79,17 +86,19 @@ class LangFuseHandler:
         if globalLangfuseLogger is not None:
             return globalLangfuseLogger
 
-        credentials_dict: Dict[
-            str, Any
-        ] = {}  # the global langfuse logger uses Environment Variables, there are no dynamic credentials
+        credentials_dict: Dict[str, Any] = (
+            {}
+        )  # the global langfuse logger uses Environment Variables, there are no dynamic credentials
         globalLangfuseLogger = in_memory_dynamic_logger_cache.get_cache(
             credentials=credentials_dict,
             service_name="langfuse",
         )
         if globalLangfuseLogger is None:
-            globalLangfuseLogger = LangFuseHandler._create_langfuse_logger_from_credentials(
-                credentials=credentials_dict,
-                in_memory_dynamic_logger_cache=in_memory_dynamic_logger_cache,
+            globalLangfuseLogger = (
+                LangFuseHandler._create_langfuse_logger_from_credentials(
+                    credentials=credentials_dict,
+                    in_memory_dynamic_logger_cache=in_memory_dynamic_logger_cache,
+                )
             )
         return globalLangfuseLogger
 
@@ -106,7 +115,8 @@ class LangFuseHandler:
 
         langfuse_logger = LangFuseLogger(
             langfuse_public_key=credentials.get("langfuse_public_key"),
-            langfuse_secret=credentials.get("langfuse_secret") or credentials.get("langfuse_secret_key"),
+            langfuse_secret=credentials.get("langfuse_secret")
+            or credentials.get("langfuse_secret_key"),
             langfuse_host=credentials.get("langfuse_host"),
             allow_env_credentials=credentials.get("langfuse_host") is None,
         )
@@ -133,7 +143,8 @@ class LangFuseHandler:
         # Guard against None to handle the case where no per-request params are passed
         params = standard_callback_dynamic_params or {}
         return LangfuseLoggingConfig(
-            langfuse_secret=params.get("langfuse_secret") or params.get("langfuse_secret_key"),
+            langfuse_secret=params.get("langfuse_secret")
+            or params.get("langfuse_secret_key"),
             langfuse_public_key=params.get("langfuse_public_key"),
             langfuse_host=params.get("langfuse_host"),
         )