diff --git a/litellm/proxy/litellm_pre_call_utils.py b/litellm/proxy/litellm_pre_call_utils.py
index 8a9972f8be9..ba319be01cb 100644
--- a/litellm/proxy/litellm_pre_call_utils.py
+++ b/litellm/proxy/litellm_pre_call_utils.py
@@ -237,9 +237,7 @@ from litellm.types.utils import (
     SupportedCacheControls,
 )
 
-_DESTINATION_ONLY_CALLBACK_VARS: Final[frozenset[str]] = frozenset(
-    {CAPTURE_MESSAGE_CONTENT_VAR, EXCLUDED_SERVICES_VAR}
-)
+_DESTINATION_ONLY_CALLBACK_VARS: Final[frozenset[str]] = frozenset({CAPTURE_MESSAGE_CONTENT_VAR, EXCLUDED_SERVICES_VAR})
 
 _CALLBACK_CREDENTIAL_KEYS: Final = frozenset(StandardCallbackDynamicParams.__annotations__) | frozenset(
     {TRUSTED_CALLBACK_VARS_FIELD}
diff --git a/litellm/proxy/management_endpoints/team_callback_endpoints.py b/litellm/proxy/management_endpoints/team_callback_endpoints.py
index 4ae4264bf3e..c2d7033c06c 100644
--- a/litellm/proxy/management_endpoints/team_callback_endpoints.py
+++ b/litellm/proxy/management_endpoints/team_callback_endpoints.py
@@ -368,9 +368,11 @@ async def add_team_callbacks(
             (
                 error
                 for variable_name in (CAPTURE_MESSAGE_CONTENT_VAR, EXCLUDED_SERVICES_VAR)
-                if (error := conflicting_callback_var_error(
-                    data.callback_name, variable_name, data.callback_vars, stored_callbacks
-                ))
+                if (
+                    error := conflicting_callback_var_error(
+                        data.callback_name, variable_name, data.callback_vars, stored_callbacks
+                    )
+                )
                 is not None
             ),
             None,