code: def _get_test_commuting_structure():
      return {
          COMMUTE: True,
          CHILDREN: {
              "key_1": {
                  COMMUTE: True,
                  CHILDREN: {"key_4": {COMMUTE: False, CHILDREN: {}}},
              },
              "key_2": {
                  COMMUTE: False,
                  CHILDREN: {},
              },
              "key_3": {
                  COMMUTE: True,
                  CHILDREN: {},
              },
          },
      }
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import numpy
  import tensorflow
  from tensorflow_model_optimization.python.core.internal.tensor_encoding.core import core_encoder
  from tensorflow_model_optimization.python.core.internal.tensor_encoding.core import encoding_stage
  from tensorflow_model_optimization.python.core.internal.tensor_encoding.testing import test_utils
label_desc: Use image node_id 1 for calling a global function with example usage: _get_test_commuting_structure() and returns: dict