Add Optional parameter to hf_token in

app.py

@@ -6,6 +6,7 @@ from functools import lru_cache
 import gradio as gr
 from git import Repo
 from httpx import Client
+from typing import Optional
 from huggingface_hub import create_repo, upload_folder
 from toolz import groupby
 
@@ -25,7 +26,7 @@ clone_into_temp_dir("https://github.com/chen-zichen/XplainLLM_dataset/")
 def upload_directory_to_hf(
     repo_id: str,
     directory: str,
-    hf_token: gr.OAuthToken,
+    hf_token: Optional[gr.OAuthToken] = None,
     private: bool = False,
 ):
     url = create_repo(