def _update_optimizer_with_exponential_decay_learning_rate(
    optimizer, learning_rate):
  """Adds a new exponential decay learning rate."""
  exponential_lr = optimizer.learning_rate.exponential_decay_learning_rate
  exponential_lr.initial_learning_rate = learning_rate
Adds a new exponential decay learning rate.
inference_api/src/main/object_detection/utils/config_util_test.py