}
            classExtensionDoc.getMixinClasses().add(model.getClassDoc(mixin.getMixinClass()));
        }
        for (ExtensionMetaData extension : classDoc.getExtensionMetaData().getExtensionClasses()) {
            String pluginId = extension.getPluginId();
            ClassExtensionDoc classExtensionDoc = plugins.get(pluginId);
            if (classExtensionDoc == null) {

        this.targetClass = targetClass
    }

    String getPluginId() {
        return pluginId
    }

    Set<ClassDoc> getMixinClasses() {
        mixinClasses
    }

    Map<String, ClassDoc> getExtensionClasses() {
        return extensionClasses
    }

    List<PropertyDoc> getExtensionProperties() {
        List<PropertyDoc> properties = []
        mixinClasses.each { mixin ->