### Question:
MonitorBuilder extends AbstractBuilder<MonitorConfig, MonitorBuilder> { public MonitorBuilder group(String group) { this.group = group; return getThis(); }  MonitorBuilder protocol(String protocol); MonitorBuilder address(String address); MonitorBuilder username(String username); MonitorBuilder password(String password); MonitorBuilder group(String group); MonitorBuilder version(String version); MonitorBuilder interval(String interval); MonitorBuilder isDefault(Boolean isDefault); MonitorBuilder appendParameter(String key, String value); MonitorBuilder appendParameters(Map<String, String> appendParameters); MonitorConfig build();  }### Answer:
@Test void group() { MonitorBuilder builder = new MonitorBuilder(); builder.group("group"); Assertions.assertEquals("group", builder.build().getGroup()); }