code: def setUp(self):
      super(QuantizeLayerTest, self).setUp()
      self.quant_params = {"num_bits": 8, "narrow_range": False}
      self.quantizer = quantizers.LastValueQuantizer(
          per_axis=False, symmetric=True, **self.quant_params
      )
  
file_path: model-optimization/tensorflow_model_optimization/python/core/quantization/keras/quantize_layer_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import tensorflow
  from tensorflow_model_optimization.python.core.quantization.keras import quantize_layer
  from tensorflow_model_optimization.python.core.quantization.keras import quantizers
label_desc: Use image node_id 1 for calling the QuantizeLayerTest obj's underlying member method code with example usage: obj.setUp() without return types