code: def test_time_as_index():
      """Test indexing of raw times."""
      raw = read_raw_fif(raw_fname)
  
      # Test original (non-rounding) indexing behavior
      orig_inds = raw.time_as_index(raw.times)
      assert len(set(orig_inds)) != len(orig_inds)
  
      # Test new (rounding) indexing behavior
      new_inds = raw.time_as_index(raw.times, use_rounding=True)
      assert_array_equal(new_inds, np.arange(len(raw.times)))
  
imports: import math
  import os
  import re
  from contextlib import redirect_stdout
  from io import StringIO
  from os import path
  from pathlib import Path
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_almost_equal, assert_array_equal, assert_array_less
  import mne
  from mne import Annotations, concatenate_raws, create_info, pick_types
  from mne._fiff._digitization import DigPoint, _dig_kind_dict
  from mne._fiff.constants import FIFF
  from mne._fiff.meas_info import Info, _get_valid_units, _writing_info_hdf5
  from mne._fiff.pick import _ELECTRODE_CH_TYPES, _FNIRS_CH_TYPES_SPLIT
  from mne._fiff.proj import Projection
  from mne._fiff.utils import _mult_cal_one
  from mne.fixes import _numpy_h5py_dep
  from mne.io import BaseRaw, RawArray, read_raw_fif
  from mne.io.base import _get_scaling
  from mne.transforms import Transform
  from mne.utils import _import_h5io_funcs, _raw_annot, _stamp_to_dt, _TempDir, catch_logging, check_version, object_diff
label_desc: Use image node_id 7 for calling a global function with example usage: test_time_as_index() without return types