import { Iterable } from 'ix';
import { IterableLike, ObservableLike } from '../../../WebRx';
import { ListItemsViewModel } from './ListItemsViewModel';
export declare function flattenItems<T>(item: T, itemsSource: (item: T) => IterableLike<T> | undefined): Iterable<T>;
export declare class TreeListItemsViewModel<T> extends ListItemsViewModel<T> {
    protected readonly itemsSource: (item: T) => IterableLike<T> | undefined;
    static displayName: string;
    constructor(source: ObservableLike<IterableLike<T>>, itemsSource: (item: T) => IterableLike<T> | undefined);
    getItems(): Iterable<T>;
    getItemsForIndicies(indicies: IterableLike<number>): undefined;
    getIndiciesForItems(items: IterableLike<T>): undefined;
    protected flattenItems(item: T): Iterable<T>;
}