code: def test_tmin_tmax():
      """Test that the tmin and tmax attributes return the correct time."""
      evoked = read_evokeds(fname, 0)
      assert evoked.times[0] == evoked.tmin
      assert evoked.times[-1] == evoked.tmax
  
imports: import pickle
  from copy import deepcopy
  from pathlib import Path
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_almost_equal, assert_array_equal, assert_equal
  from scipy import fftpack
  from mne import Epochs, EpochsArray, combine_evoked, create_info, equalize_channels, pick_types, read_events, read_evokeds, write_evokeds
  from mne._fiff.constants import FIFF
  from mne.evoked import Evoked, EvokedArray, _get_peak
  from mne.io import read_raw_fif
  from mne.utils import grand_average
label_desc: Use image node_id 9 for calling a global function with example usage: test_tmin_tmax() without return types