userManual.getStagedDocumentation().convention(userguideFlattenSources.flatMap(task -> (DirectoryProperty) task.getExtensions().getExtraProperties().get("destinationDirectory")));
            userManual.getRenderedDocumentation().from(userguide);
        });
    }

    private void configureForUserGuideSinglePage(AsciidoctorTask task, GradleDocumentationExtension extension, Project project) {
        task.setGroup("documentation");