code: def base_dataset_fixture():
      """Boring fixture that creates an instance of :class:`data.data_core.BaseDataset`"""
      return BaseDataset(None, None)
  
file_path: hyperparameter_hunter/tests/test_data/test_data_core.py
imports: from hyperparameter_hunter.data.data_core import BaseDataChunk, BaseDataset, NullDataChunk
  import pandas
  import pytest
  from unittest import mock
label_desc: Use image node_id 2 for calling a global function with example usage: base_dataset_fixture() and returns: BaseDataset