import { Enumerable } from "../enumerable";
import { Dictionary } from "../dictionary";
declare module '../enumerable' {
    interface Enumerable<TSource> {
        toDictionary<TKey, TElement>(keySelector: (item: TSource) => TKey, elementSelector?: (item: TSource) => TElement): Dictionary<TKey, TElement>;
    }
}
export declare function toDictionary<TSource, TKey, TElement>(this: Enumerable<TSource>, keySelector: (item: TSource) => TKey, elementSelector?: (item: TSource) => TElement): Dictionary<TKey, TElement>;