import { type DirectiveResult } from 'element-vir';
import { type NavController } from '../nav-controller/nav-controller.js';
import { NavValue, type NavParams } from './nav-entry.js';
/**
 * Used to determine an element's initial {@link navAttribute} value.
 *
 * @category Internal
 */
export declare function determineNavValue(params: Readonly<NavParams>): NavValue | '';
/**
 * Mark an element for navigation.
 *
 * This automatically applies the `tabindex` attribute and all keyboard and mouse listeners needed
 * to enable `NavController` functionality.
 *
 * @category Main
 */
export declare function nav(navController: NavController, params?: Readonly<NavParams>): DirectiveResult;