code: def test_demo_from_readme() -> None:
      for k, v in README_DEMOS.items():
          print(k)
          v().validate()._asdict()
  
file_path: hiplot/hiplot/test_fetchers.py
imports: from pathlib import Path
  import json
  import tempfile
  import shutil
  import pytest
  from .None import experiment
  from .fetchers import load_demo, load_csv, load_json, MultipleFetcher, get_fetchers, load_xps_with_fetchers
  from .fetchers_demo import README_DEMOS
label_desc: Use image node_id 5 for calling a global function with example usage: test_demo_from_readme() without return types