code: def test_t():
      """Verify that the times of the slices are correct."""
      SFT = ShortTimeFFT(np.ones(8), hop=4, fs=2)
      assert SFT.T == 1 / 2
      assert SFT.fs == 2.0
      assert SFT.delta_t == 4 * 1 / 2
      t_stft = np.arange(0, SFT.p_max(10)) * SFT.delta_t
      assert_equal(SFT.t(10), t_stft)
      assert_equal(SFT.t(10, 1, 3), t_stft[1:3])
      SFT.T = 1 / 4
      assert SFT.T == 1 / 4
      assert SFT.fs == 4
      SFT.fs = 1 / 8
      assert SFT.fs == 1 / 8
      assert SFT.T == 8
  
imports: import math
  from itertools import product
  from typing import cast, get_args, Literal
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_equal
  from scipy.fft import fftshift
  from scipy.stats import norm
  from scipy.signal import get_window, welch, stft, istft, spectrogram
  from scipy.signal._short_time_fft import FFT_MODE_TYPE, _calc_dual_canonical_window, ShortTimeFFT, PAD_TYPE
  from scipy.signal.windows import gaussian
label_desc: Use image node_id 15 for calling a global function with example usage: test_t() without return types