if (suiteXmlBuilder != null) {
            return suiteXmlBuilder.getMetaClass().getProperty(suiteXmlBuilder, name);
        }

        throw new MissingPropertyException(name, getClass());
    }

    public Object methodMissing(String name, Object args) {
        if (suiteXmlBuilder != null) {
            return suiteXmlBuilder.getMetaClass().invokeMethod(suiteXmlBuilder, name, args);

        'includeGroups'       | '= ["group to include"]'
        'outputDirectory'     | '= file("$buildDir/my-out")'
        'suiteXmlFiles'       | '= [file("suite.xml")]'
        'suiteXmlBuilder()'   | '''
                                .suite(name: 'MySuite') {
                                    test(name: 'MyTest') {
                                        classes([:]) {

Method <org.gradle.api.tasks.testing.testng.TestNGOptions.suiteXmlBuilder()> has arguments/return type groovy.xml.MarkupBuilder that is not Gradle public API or primitive or built-in JDK classes or Kotlin classes in (TestNGOptions.java:0)