Update app.py

app.py

@@ -176,7 +176,7 @@ class S3DirectStream:
         try:
             api = HfApi()
             model_files = api.list_repo_files(model_prefix, revision=revision)
-            model_files = [file.rfilename for file in model_files if file.rfilename.endswith(('.bin', '.safetensors'))]
+            model_files = [file["rfilename"] for file in model_files if file["rfilename"].endswith(('.bin', '.safetensors'))]
             return model_files
         except Exception as e:
             logger.error(f"Error retrieving model files from Hugging Face: {e}")