*/
    public abstract DirectoryProperty getSourceRoot();

    /**
     * Collection of CSS files to include in generated documentation.
     */
    public abstract ConfigurableFileCollection getCssFiles();

    /**
     * The source code to be documented. This should be the "public" APIs.
     */
    public abstract ConfigurableFileCollection getDocumentedSource();

    /**

                options.setBackends(singletonList("html5"));
            });

            // TODO: Break the paths assumed here
            TaskInputs inputs = task.getInputs();
            inputs.files(extension.getCssFiles())
                .withPropertyName("manual")
                .withPathSensitivity(PathSensitivity.RELATIVE);
            inputs.dir("src/main/resources")
                .withPropertyName("resources")

        ConfigurableFileTree css = objects.fileTree();
        css.from(extension.getSourceRoot().dir("css"));
        css.include("*.css");
        extension.getCssFiles().from(css);

        extension.getRenderedDocumentation().from(stageDocs);

        Configuration runtimeClasspath = project.getConfigurations().getByName("runtimeClasspath");