import type { IAsyncEnumerable } from "../../types";
type SelectAsyncFunc = {
    <TSource, TResult>(source: Iterable<TSource>, selector: (x: TSource, index: number) => Promise<TResult>): IAsyncEnumerable<TResult>;
    <TSource extends {
        [key: string]: Promise<any>;
    }, TKey extends keyof TSource>(source: Iterable<TSource>, key: TKey): IAsyncEnumerable<TSource[TKey]>;
};
export declare const selectAsync: SelectAsyncFunc;
export {};