import { AnonymousObject, LocalQuery, QuerySearcher, QuerySortComparator } from 'onekijs-framework';
import { TreeController, TreeItem } from './typings';
export declare const defaultTreeQueryEngine: <T = any, I extends TreeItem<T> = TreeItem<T>>(items: I[], query: LocalQuery, comparator: QuerySortComparator<T>, comparators: AnonymousObject<QuerySortComparator<T>>, searcher?: QuerySearcher<T>) => I[];
export declare const isTreeItemExpanded: <T = any, I extends TreeItem<T> = TreeItem<T>>(item: I, service: TreeController<T, I>) => boolean;