code: def test_06_01_make_ivj_outlines_empty(self):
      np.random.seed(70)
      labels = np.zeros((10, 20), int)
      label_set = lib_seg.cast_labels_to_label_set(labels)
      colors = np.random.uniform(size=(5, 3))
      rgb_image = lib_seg.make_rgb_outlines(label_set, colors)
      assert np.all(rgb_image == 0)
  
imports: import numpy
  import centrosome.outline
  import cellprofiler_library.functions.segmentation
  from cellprofiler_library.functions.segmentation import SPARSE_FIELD
label_desc: Use image node_id 18 for calling the TestSegmentation obj's underlying member method code with example usage: obj.test_06_01_make_ivj_outlines_empty() without return types