serialized_nbytes SmallBootstrapKey.serialized_nbytes Shows the size of a small bootstrap key when serialized. Output serialized_nbytes, int from desilofhe import Engine engine = Engine(use_bootstrap=True) secret_key = engine.create_secret_key() small_bootstrap_key = engine.create_small_bootstrap_key(secret_key) serialized_nbytes = small_bootstrap_key.serialized_nbytes