community[patch]: Fix MlflowCallback with none artifacts_dir (#16487)

5 months ago · 5c6e123757
parent 0e2e7d8b83
commit 5c6e123757
1 changed files with 1 additions and 1 deletions
--- a/libs/community/langchain_community/callbacks/mlflow_callback.py
+++ b/libs/community/langchain_community/callbacks/mlflow_callback.py
@ -275,7 +275,7 @@ class MlflowCallbackHandler(BaseMetadataCallbackHandler, BaseCallbackHandler):
        tags: Optional[Dict] = None,
        tracking_uri: Optional[str] = None,
        run_id: Optional[str] = None,
-        artifacts_dir: Optional[str] = None,
+        artifacts_dir: str = "",
    ) -> None:
        """Initialize callback handler."""
        import_pandas()