code: def test_dataset_from_images():
      images = np.zeros([2, 4, 4, 3])
      dataset = Dataset.from_images(images)
  
      assert len(dataset) == 2
  
      sample = dataset[0]
      assert (sample.img == np.zeros([4, 4, 3])).all()
      assert sample.height == sample.width == 4
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_dataset_from_images() without return types