code: def test_config(self):
      optimizer = RMSprop(
          learning_rate=0.5,
          rho=0.8,
          momentum=0.05,
          epsilon=1e-6,
          centered=True,
      )
      self.run_class_serialization_test(optimizer)
  
file_path: keras/keras/optimizers/rmsprop_test.py
imports: import numpy
  from keras import backend
  from keras import ops
  from keras import testing
  from keras.optimizers.rmsprop import RMSprop
label_desc: Use image node_id 1 for calling the RMSpropTest obj's underlying member method code with example usage: obj.test_config() without return types