fix(openai): pass metadata when model distillation feat is used (#1031)

Author: hassiebp

langfuse/openai.py

@@ -170,6 +170,11 @@ def get_langfuse_args(self):
         return {**self.args, **self.kwargs}
 
     def get_openai_args(self):
+        # If OpenAI model distillation is enabled, we need to add the metadata to the kwargs
+        # https://platform.openai.com/docs/guides/distillation
+        if self.kwargs.get("store", False):
+            self.kwargs["metadata"] = self.args.get("metadata", {})
+
         return self.kwargs