public Optional<CloudAccount> cloudAccount() {
        return cloudAccount;
    }
@Test
    public void testCloudAccount() {
        String json = "{\"cloudAccount\": {\"id\": \"012345678912\"}}";
        PrepareParams params = PrepareParams.fromJson(json.getBytes(StandardCharsets.UTF_8), TenantName.defaultName(), Duration.ZERO);
        assertEquals(CloudAccount.from("012345678912"), params.cloudAccount().get());
    }