code: def test_load_empty_config_default(capsys):
      test_path = "config-defaults.yaml"
      with open(test_path, "w"):
          pass
      _ = wandb_sdk.Config()
      err_log = capsys.readouterr().err
      warn_msg = "wandb: WARNING Found an empty default config file (config-defaults.yaml). Proceeding with no defaults."
      print(err_log)
      assert warn_msg in err_log
  
file_path: wandb/tests/pytest_tests/unit_tests/test_wandb_config.py
imports: import pytest
  import yaml
  from wandb import wandb_sdk
label_desc: Use image node_id 14 for calling a global function with example usage: test_load_empty_config_default(capsys) without return types