/**
 * treeEngine — pure functions for hierarchical tree operations.
 *
 * @module engine/treeEngine
 * @see FMPV-MVWC-E005-S002
 */
import type { MasterPatternViewEntity } from '../types/service.types';
import type { MasterPatternViewTreeNode } from '../types/tree.types';
/**
 * Returns true if `potentialDescendantId` is a descendant of `ancestorId` in the flat node list.
 */
export declare function isDescendant<T extends MasterPatternViewEntity>(potentialDescendantId: string, ancestorId: string, nodes: MasterPatternViewTreeNode<T>[]): boolean;
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