def get_defaults(env_id):
  """ Returns dict of default arguments. """
  return {
      "num-train-steps": 100e6 if "Flagrun" in env_id else 50e6,
      "nenvs": 128 if "Flagrun" in env_id else 32,
      "num-runner-steps": 512,
      "num-epochs": 15,
      "num-minibatches": 16 if "Flagrun" in env_id else 4,
      "lr": 3e-4,
      "entropy-coef": 0.,
  }