code: def test_get_local_objs_to_upload_and_s3_prefix_empty():
      with tempfile.TemporaryDirectory() as temp_dir:
          result = _get_local_objs_to_upload_and_s3_prefix(
              folder_to_upload=temp_dir
          )
          assert len(result) == 0
  
file_path: autogluon/common/tests/unittests/test_s3_utils.py
imports: import os
  import tempfile
  import pytest
  from autogluon.common.utils.s3_utils import _get_local_objs_to_upload_and_s3_prefix, _get_local_path_to_download_objs, get_s3_to_local_tuple_list
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_local_objs_to_upload_and_s3_prefix_empty() without return types