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