code: def testSerialization(self, quantizer_type):
      quantizer = quantizer_type(
          **self._get_quant_params(quantizer_type)
      )
  
      expected_config = {
          "class_name": quantizer_type.__name__,
          "config": self._get_quant_params(quantizer_type),
      }
      serialized_quantizer = serialize_keras_object(quantizer)
  
      self.assertEqual(expected_config, serialized_quantizer)
  
      quantizer_from_config = deserialize_keras_object(
          serialized_quantizer,
          module_objects=globals(),
          custom_objects=quantizers._types_dict(),
      )
  
      self.assertEqual(quantizer, quantizer_from_config)
  
file_path: model-optimization/tensorflow_model_optimization/python/core/quantization/keras/quantizers_test.py
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.keras import compat
  from tensorflow_model_optimization.python.core.quantization.keras import quantizers
  from tensorflow_model_optimization.python.core.quantization.keras import utils
label_desc: Use image node_id 4 for calling the QuantizersTest obj's underlying member method code with example usage: obj.testSerialization(quantizer_type) without return types