import type { AbstractTreeNode } from '../interfaces';
/**
 * Traverses all nodes and collects them into an array.
 * The `order` parameter can be used to specify the traversal strategy:
 * * `pre`  - Pre-order traversal (default)
 * * `post` - Post-order traversal
 * * `leaf-only` - Ignore internal nodes and collect only leaf nodes
 */
export default function collectNodes<T extends AbstractTreeNode>(nodes: T[], order?: 'pre' | 'post' | 'leaf-only'): T[];