import { IEnumerator } from '../enumerator';
export declare type IndexableIterable<T> = {
    length: number;
    [key: number]: T;
} & Iterable<T>;
/**
 * Represents an iterator whose
 * source can be indexed by an
 * incrementing number.
 */
export declare class IndexableIterator<T> implements IEnumerator<T> {
    get current(): T;
    private _source;
    private _idx;
    constructor(source: IndexableIterable<T>);
    moveNext(): boolean;
    reset(): void;
    [Symbol.iterator](): Iterator<T>;
}