configs = config_util.get_configs_from_pipeline_file(FLAGS.pipeline_config_path)

model_config = configs['model']
type(model_config)

train_config = configs['train_config']
type(train_config)

type(getattr(train_config.optimizer, 'rms_prop_optimizer'))

getattr(getattr(getattr(getattr(train_config.optimizer, 'momentum_optimizer'), 'learning_rate'), 'manual_step_learning_rate'), 'initial_learning_rate')