code: def test_config(self):
      with self.strategy.scope():
          optimizer = SGD(
              learning_rate=0.5,
              momentum=0.06,
              nesterov=True,
              weight_decay=0.004,
          )
      self.run_class_serialization_test(optimizer)
  
file_path: keras/keras/backend/tensorflow/optimizer_distribute_test.py
imports: import numpy
  import pytest
  import tensorflow
  from tensorflow.python.eager import context
  from keras import backend
  from keras import testing
  from keras.optimizers.sgd import SGD
label_desc: Use image node_id 2 for calling the OptimizerDistributeTest obj's underlying member method code with example usage: obj.test_config() without return types