code: def test_snirf_standard(
      fname, boundary_decimal, test_scaling, test_rank
  ):
      """Test standard operations."""
      _test_raw_reader(
          read_raw_snirf,
          fname=fname,
          boundary_decimal=boundary_decimal,
          test_scaling=test_scaling,
          test_rank=test_rank,
      )
  
imports: import shutil
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_almost_equal, assert_equal
  from mne._fiff.constants import FIFF
  from mne.datasets.testing import data_path, requires_testing_data
  from mne.io import read_raw_nirx, read_raw_snirf
  from mne.io.tests.test_raw import _test_raw_reader
  from mne.preprocessing.nirs import _reorder_nirx, beer_lambert_law, optical_density, short_channels, source_detector_distances
  from mne.transforms import _get_trans, apply_trans
  from mne.utils import catch_logging
label_desc: Use image node_id 12 for calling a global function with example usage: test_snirf_standard(fname, boundary_decimal, test_scaling, test_rank) without return types