code: def test_decode_image(self):
      image = self._get_image("6pixels.png")
      np_image = image_utils.decode_image(image)
      np.testing.assert_array_equal(np_image, SIX_PIXELS)
  
file_path: datasets/tensorflow_datasets/core/utils/image_utils_test.py
imports: import os
  import numpy
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core.utils import image_utils
label_desc: Use image node_id 2 for calling the ImageUtilsTest obj's underlying member method code with example usage: obj.test_decode_image() without return types