code: def test_nirx_hdr_load():
      """Test reading NIRX files using path to header file."""
      fname = fname_nirx_15_2_short / "NIRS-2019-08-23_001.hdr"
      raw = read_raw_nirx(fname, preload=True)
  
      # Test data import
      assert raw._data.shape == (26, 145)
      assert raw.info["sfreq"] == 12.5
  
imports: import datetime
  import os
  import shutil
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_equal
  from mne import pick_types
  from mne._fiff.constants import FIFF
  from mne.datasets.testing import data_path, requires_testing_data
  from mne.io import read_raw_nirx
  from mne.io.tests.test_raw import _test_raw_reader
  from mne.preprocessing import annotate_nan
  from mne.preprocessing.nirs import _reorder_nirx, short_channels, source_detector_distances
  from mne.transforms import _get_trans, apply_trans
label_desc: Use image node_id 6 for calling a global function with example usage: test_nirx_hdr_load() without return types