import { type CurrentNavEntry } from '../directives/nav-entry.js';
import { type NavTree } from '../nav-tree/nav-tree.js';
import { NavAction, type NavigationResult } from './navigate.js';
/**
 * Enter into the currently focused node's children. Focuses the first child. Fails if there are no
 * children to focus.
 *
 * @category Internal
 */
export declare function enterInto(navTree: Readonly<NavTree>, currentlyFocused: Readonly<CurrentNavEntry> | undefined): NavigationResult<NavAction.Enter>;