public B configCenter(ConfigCenterConfig configCenter) {
        this.configCenter = configCenter;
        return getThis();
    }
@Test
    void configCenter() {
        ConfigCenterConfig configCenterConfig = new ConfigCenterConfig();

        InterfaceBuilder builder = new InterfaceBuilder();
        builder.configCenter(configCenterConfig);

        Assertions.assertEquals(configCenterConfig, builder.build().getConfigCenter());
    }