code: def test_io_set_raw_2021():
      """Test reading new default file format (no EEG struct)."""
      assert "EEG" not in io.loadmat(raw_fname_2021)
      _test_raw_reader(
          reader=read_raw_eeglab,
          input_fname=raw_fname_2021,
          test_preloading=False,
          preload=True,
      )
  
imports: import os
  import shutil
  from copy import deepcopy
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_almost_equal, assert_array_equal, assert_equal
  from scipy import io
  import mne
  from mne import read_epochs_eeglab, write_events
  from mne.annotations import events_from_annotations, read_annotations
  from mne.channels import read_custom_montage
  from mne.datasets import testing
  from mne.io import read_raw_eeglab
  from mne.io.eeglab._eeglab import _readmat
  from mne.io.eeglab.eeglab import _dol_to_lod, _get_montage_information
  from mne.io.tests.test_raw import _test_raw_reader
  from mne.utils import Bunch, _check_pymatreader_installed
label_desc: Use image node_id 14 for calling a global function with example usage: test_io_set_raw_2021() without return types