this.propertyTableRenderer = propertyTableRenderer;
    }

    public void renderTo(ClassExtensionDoc extension, Element parent) {
        if (extension.getExtensionProperties().isEmpty()) {
            return;
        }

        Document document = parent.getOwnerDocument();

        Element section = document.createElement("section");
        parent.appendChild(section);

            }
            for (ClassExtensionDoc extensionDoc : classDoc.getClassExtensions()) {
                for (PropertyDoc propertyDoc : extensionDoc.getExtensionProperties()) {
                    propertiesDetailRenderer.renderTo(propertyDoc, detailsSection);
                }
            }
        }
    }

    private boolean hasProperties(ClassDoc classDoc) {

    }

    Set<ClassDoc> getMixinClasses() {
        mixinClasses
    }

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

    List<PropertyDoc> getExtensionProperties() {
        List<PropertyDoc> properties = []
        mixinClasses.each { mixin ->
            mixin.classProperties.each { prop ->
                properties << prop.forClass(targetClass)
            }
        }