diff --git a/weave/trace/op.py b/weave/trace/op.py
index 67bcd45a139..cd3b2bde56e 100644
--- a/weave/trace/op.py
+++ b/weave/trace/op.py
@@ -46,7 +46,8 @@
     ANTHROPIC_NOT_GIVEN = None
 
 try:
-    from mistralai.types.basemodel import UNSET 
+    from mistralai.types.basemodel import UNSET
+
     MISTRAL_NOT_GIVEN = UNSET
 except ImportError:
     MISTRAL_NOT_GIVEN = None