@NonNull
    @Override
    public Object configure(CNode config, ConfigurationContext context) throws ConfiguratorException {
        return Stapler.lookupConverter(target)
                .convert(
                        target,
                        context.getSecretSourceResolver()
                                .resolve(config.asScalar().toString()));
    }
@Test
    public void _int_env_default() throws Exception {
        Configurator c = registry.lookupOrFail(Integer.class);
        final Object value = c.configure(new Scalar("${ENV_FOR_TEST:-123}"), context);
        assertEquals(123, value);
    }