code: def _skip_testing_data():
      skip_testing = (
          get_config("MNE_SKIP_TESTING_DATASET_TESTS", "false")
          == "true"
      )
      skip = skip_testing or not has_testing_data()
      return skip
  
file_path: mne-python/mne/datasets/testing/_testing.py
imports: from functools import partial
  from ...utils import get_config, verbose
  from ..utils import _data_path_doc, _download_mne_dataset, _get_version, _version_doc, has_dataset
label_desc: Use image node_id 3 for calling a global function with example usage: _skip_testing_data() and returns: skip