code: def testQuantizer(self, quantizer_type):
      quantizer = quantizer_type(
          **self._get_quant_params(quantizer_type)
      )
  
      self._test_quantizer(quantizer)
  
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 3 for calling the QuantizersTest obj's underlying member method code with example usage: obj.testQuantizer(quantizer_type) without return types