Update app.py

app.py

@@ -137,8 +137,8 @@ def push_to_hf(cache_dir, WiseModel_repo_name, hf_repo_id):
 def pull_from_hf(cache_dir, hf_repo_id):
     from huggingface_hub import HfApi
 
-    # if not HF_TOKEN:
-    #    raise gr.Error("Please enter your HF_TOKEN")
+     if not HF_TOKEN:
+        raise gr.Error("Please enter your HF_TOKEN")
     print("pull_from_hf start")
     api = HfApi(token=HF_TOKEN)  # Token is not persisted on the machine.
     output = api.snapshot_download(