code: def testLastValueSymmetricQuantizeTrainingAssign(self):
      min_value, max_value = self._GetMinMaxValues(
          quant_ops.LastValueQuantize,
          [
              tf.constant(
                  [-_SYMMETRIC_RANGE_RATIO, _SYMMETRIC_RANGE_RATIO]
              )
          ],
          symmetric=True,
          narrow_range=False,
      )
      self.assertEqual(min_value, -1.0)
      self.assertEqual(max_value, _SYMMETRIC_RANGE_RATIO)
  
file_path: model-optimization/tensorflow_model_optimization/python/core/quantization/keras/quant_ops_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tensorflow_model_optimization.python.core.keras import compat
  from tensorflow_model_optimization.python.core.quantization.keras import quant_ops
label_desc: Use image node_id 5 for calling the QuantOpsTest obj's underlying member method code with example usage: obj.testLastValueSymmetricQuantizeTrainingAssign() without return types