serialized_nbytes FixedRotationKey.serialized_nbytes Shows the size of a fixed rotation key when serialized. Output serialized_nbytes, int from desilofhe import Engine engine = Engine() secret_key = engine.create_secret_key() fixed_rotation_key = engine.create_fixed_rotation_key(secret_key, delta=1) serialized_nbytes = fixed_rotation_key.serialized_nbytes