import { BasicType } from '../index';
import { RSDList } from '../types';
import { Observable } from './Observable';
declare type InputItem = BasicType | object | any[];
declare type Item = Observable | BasicType;
/** ViewModelList is only for internal use of the framework */
export declare class ViewModelList extends Observable {
    [index: number]: Item;
    private _itemStateDescriber?;
    private readonly lastIndex;
    readonly length: number;
    private items;
    constructor(items: Item[], stateDescriber?: RSDList);
    push(item: InputItem): number;
    pop(): Item | undefined;
    unshift(item: InputItem): number;
    shift(): Item | undefined;
    splice(index: number, length?: number, ...newItems: InputItem[]): Item[];
    slice(start?: number, end?: number): Item[];
    forEach(fn: (item: Item, index: number) => false | void): void;
    map<T>(fn: (item: Item, index: number) => T): T[];
    filter(fn: (item: Item) => boolean): Item[];
    some(fn: (item: Item) => boolean): boolean;
    every(fn: (item: Item) => boolean): boolean;
    sort(fn: (a: Item, b: Item) => number): this;
    reverse(): Item[];
    join(separator?: string): string;
    concat(...newLists: Item[][]): Item[];
    reduce<U>(callbackfn: (previousValue: U, currentValue: Item, currentIndex: number, array: Item[]) => U, initialValue: U): U;
    reduceRight<U>(callbackfn: (previousValue: U, currentValue: Item, currentIndex: number, array: Item[]) => U, initialValue: U): U;
    indexOf(item: InputItem): number;
    private _createModificationTree;
    private _transformItems;
    private _handleChange;
    private defineIndexProperty;
    private _setItemByIndex;
    private _getItemByIndex;
}
export {};