code: def test_augment_images__alpha_is_zero(self):
      aug = iaa.Canny(
          alpha=0.0,
          hysteresis_thresholds=(0, 10),
          sobel_kernel_size=[3, 5, 7],
          random_state=1,
      )
  
      image = np.arange(5 * 5 * 3).astype(np.uint8).reshape((5, 5, 3))
      image_aug = aug.augment_image(image)
      assert np.array_equal(image_aug, image)
  
imports: from __future__ import print_function, division, absolute_import
  import itertools
  import sys
  import numpy
  import cv2
  from imgaug import augmenters
  from imgaug import parameters
  from imgaug import random
  from imgaug.testutils import reseed, runtest_pickleable_uint8_img, is_parameter_instance, remove_prefetching
label_desc: Use image node_id 6 for calling the TestCanny obj's underlying member method code with example usage: obj.test_augment_images__alpha_is_zero() without return types