code: def test_fake_bids_extra_entity_not_bids_entity(tmp_path):
      """Check files with extra entity are created appropriately."""
      with pytest.raises(ValueError, match="Invalid entity"):
          create_fake_bids_dataset(
              base_dir=tmp_path,
              entities={"egg": ["spam"]},
          )
  
imports: from __future__ import annotations
  import json
  import numpy
  import pytest
  from nilearn._utils.data_gen import add_metadata_to_bids_dataset, create_fake_bids_dataset, generate_fake_fmri, generate_labeled_regions, generate_maps, generate_regions_ts
  from nilearn.image import get_data
label_desc: Use image node_id 14 for calling a global function with example usage: test_fake_bids_extra_entity_not_bids_entity(tmp_path) without return types