import { AsyncIterableX } from '../asynciterablex';
import { OperatorAsyncFunction } from '../../interfaces';
export declare class GroupJoinAsyncIterable<TOuter, TInner, TKey, TResult> extends AsyncIterableX<TResult> {
    private _outer;
    private _inner;
    private _outerSelector;
    private _innerSelector;
    private _resultSelector;
    constructor(outer: AsyncIterable<TOuter>, inner: AsyncIterable<TInner>, outerSelector: (value: TOuter) => TKey | Promise<TKey>, innerSelector: (value: TInner) => TKey | Promise<TKey>, resultSelector: (outer: TOuter, inner: AsyncIterable<TInner>) => TResult | Promise<TResult>);
    [Symbol.asyncIterator](): AsyncGenerator<TResult, void, unknown>;
}
export declare function groupJoin<TOuter, TInner, TKey, TResult>(inner: AsyncIterable<TInner>, outerSelector: (value: TOuter) => TKey | Promise<TKey>, innerSelector: (value: TInner) => TKey | Promise<TKey>, resultSelector: (outer: TOuter, inner: AsyncIterable<TInner>) => TResult | Promise<TResult>): OperatorAsyncFunction<TOuter, TResult>;