code: def test_all_zeros():
      image = tf.zeros([10, 10], tf.uint8)
      expected_output = np.zeros([10, 10])
  
      for output_dtype in [tf.float16, tf.float32, tf.float64]:
          output = dist_ops.euclidean_dist_transform(
              image, dtype=output_dtype
          )
          np.testing.assert_allclose(output, expected_output)
  
file_path: addons/tensorflow_addons/image/tests/distance_transform_test.py
imports: import pytest
  import numpy
  import tensorflow
  from tensorflow_addons.image import distance_transform
  from tensorflow_addons.utils import test_utils
label_desc: Use image node_id 4 for calling a global function with example usage: test_all_zeros() without return types