import { OperatorAsyncFunction } from '../../interfaces';
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>;