From 771314291e06239c2434af5a911f33359fac40d2 Mon Sep 17 00:00:00 2001
From: sarthakdeshpande <sarthak.deshpande@engati.com>
Date: Tue, 12 Aug 2025 20:40:04 +0530
Subject: [PATCH] chore:Updated empty string to None

---
 .../providers/inline/post_training/huggingface/config.py        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llama_stack/providers/inline/post_training/huggingface/config.py b/llama_stack/providers/inline/post_training/huggingface/config.py
index 9b1431e98..d27044619 100644
--- a/llama_stack/providers/inline/post_training/huggingface/config.py
+++ b/llama_stack/providers/inline/post_training/huggingface/config.py
@@ -71,7 +71,7 @@ class HuggingFacePostTrainingConfig(BaseModel):
     dpo_beta: float = 0.1
     use_reference_model: bool = True
     dpo_loss_type: Literal["sigmoid", "hinge", "ipo", "kto_pair"] = "sigmoid"
-    dpo_output_dir: str = ""
+    dpo_output_dir: str | None = None
 
     @classmethod
     def sample_run_config(cls, __distro_dir__: str, **kwargs: Any) -> dict[str, Any]: