code: def test_stretch_output_default(image_array_1band_stretch):
      """Test to ensure that an array provided is stretched between 0 and 255."""
  
      arr = image_array_1band_stretch
      # Stretch using the default value of 2%
      arr_stretch = _stretch_im(arr.astype(np.uint8), str_clip=2)
  
      assert arr_stretch.max() == 255
      assert arr_stretch.min() == 0
  
imports: import numpy
  import numpy.ma
  import matplotlib.pyplot
  import pytest
  import rasterio
  from rasterio.plot import plotting_extent
  from earthpy.plot import plot_rgb, _stretch_im
  from earthpy.io import path_to_example
label_desc: Use image node_id 13 for calling a global function with example usage: test_stretch_output_default(image_array_1band_stretch) without return types