code: def constant_3d_image(self):
      return tf.constant(
          [[[-100, 2], [2, 3]], [[4, 35], [-1024, 7]]], dtype=tf.float32
      )
  
file_path: mesh/mesh_tensorflow/experimental/data_aug_lib_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import mesh_tensorflow.experimental.data_aug_lib
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling the MtfUnetDataAugTest obj's underlying member method code with example usage: obj.constant_3d_image() and returns: tf