code: def test_shift_fade(self):
      samples = np.array(
          [[1.0, 2.0, 3.0, 4.0, 5.0], [-1.0, -2.0, -3.0, -4.0, -5.0]],
          dtype=np.float32,
      )
      sample_rate = 4000
  
      augment = Shift(
          min_shift=0.5,
          max_shift=0.5,
          rollover=False,
          fade_duration=0.00075,  # 0.00075 * 4000 = 3
          p=1.0,
      )
      processed_samples = augment(
          samples=samples, sample_rate=sample_rate
      )
  
      assert processed_samples == pytest.approx(
          np.array(
              [
                  [0.0, 0.0, 0.0, 1.4067, 3.0],
                  [0.0, 0.0, 0.0, -1.4067, -3.0],
              ],
              dtype=np.float32,
          ),
          abs=0.01,
      )
  
file_path: audiomentations/tests/test_shift.py
imports: import numpy
  import pytest
  from numpy.testing import assert_almost_equal
  from audiomentations import Shift
label_desc: Use image node_id 7 for calling the TestShift obj's underlying member method code with example usage: obj.test_shift_fade() without return types