keras/src/optimizers/schedules/learning_rate_schedule.py/CosineDecay/get_config
class CosineDecay:    def get_config(self):
        return {
            "initial_learning_rate": self.initial_learning_rate,
            "decay_steps": self.decay_steps,
            "alpha": self.alpha,
            "name": self.name,
            "warmup_target": self.warmup_target,
            "warmup_steps": self.warmup_steps,
        }