code: def testReplaceTreeOfLayers_WithSingleLayer(self):
      # TODO(pulkitb): Implement
      pass
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_model_optimization.python.core.quantization.keras import utils
  from tensorflow_model_optimization.python.core.quantization.keras.graph_transformations import model_transformer
  from tensorflow_model_optimization.python.core.quantization.keras.graph_transformations import transforms
label_desc: Use image node_id 18 for calling the ModelTransformerTest obj's underlying member method code with example usage: obj.testReplaceTreeOfLayers_WithSingleLayer() without return types