code: def test_brainvision_neuroone_export():
      """Test Brainvision file exported with neuroone system."""
      raw = read_raw_brainvision(neuroone_vhdr, verbose="error")
      assert raw.info["meas_date"] is None
      assert len(raw.info["chs"]) == 65
      assert raw.info["sfreq"] == 5000.0
  
imports: import datetime
  import re
  import shutil
  from pathlib import Path
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_equal
  from mne import concatenate_raws, pick_types, read_annotations
  from mne._fiff.constants import FIFF
  from mne.annotations import events_from_annotations
  from mne.datasets import testing
  from mne.io import read_raw_brainvision, read_raw_fif
  from mne.io.tests.test_raw import _test_raw_reader
  from mne.utils import _stamp_to_dt, object_diff
label_desc: Use image node_id 16 for calling a global function with example usage: test_brainvision_neuroone_export() without return types