import { ITree } from '../../tree';
export declare const idToKey: <TId>(id: TId) => string;
export declare const buildParentsLookup: <TItem, TId>(ids: TId[], tree: ITree<TItem, TId>, getParentId?: (item: TItem) => TId) => {
    idsByKey: Record<string, boolean>;
    someChildInIdsByKey: Record<string, boolean>;
};
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