import { Enumerable } from "../enumerable";
declare module '../enumerable' {
    interface Enumerable<TSource> {
        selectMany<TCollection, TResult>(collectionSelector: (item: TSource, idx: number) => Iterable<TCollection>, resultSelector: (item: TSource, subsequenceElement: TCollection, idx: number) => TResult): Enumerable<TResult>;
    }
}
export declare function selectMany<TSource, TCollection, TResult>(this: Enumerable<TSource>, collectionSelector: (item: TSource, idx: number) => Iterable<TCollection>, resultSelector: (item: TSource, subsequenceElement: TCollection, idx: number) => TResult): Enumerable<TResult>;