import { AsyncIterableX } from '../../asynciterable/asynciterablex';
/**
 * @ignore
 */
export declare function forkJoinProto<T, T2>(this: AsyncIterableX<T>, source2: AsyncIterable<T2>): Promise<[T, T2] | undefined>;
export declare function forkJoinProto<T, T2, T3>(this: AsyncIterableX<T>, source2: AsyncIterable<T2>, source3: AsyncIterable<T3>): Promise<[T, T2, T3] | undefined>;
export declare function forkJoinProto<T, T2, T3, T4>(this: AsyncIterableX<T>, source2: AsyncIterable<T2>, source3: AsyncIterable<T3>, source4: AsyncIterable<T4>): Promise<[T, T2, T3, T4] | undefined>;
export declare function forkJoinProto<T, T2, T3, T4, T5>(this: AsyncIterableX<T>, source2: AsyncIterable<T2>, source3: AsyncIterable<T3>, source4: AsyncIterable<T4>, source5: AsyncIterable<T5>): Promise<[T, T2, T3, T4, T5] | undefined>;
export declare function forkJoinProto<T, T2, T3, T4, T5, T6>(this: AsyncIterableX<T>, source2: AsyncIterable<T2>, source3: AsyncIterable<T3>, source4: AsyncIterable<T4>, source5: AsyncIterable<T5>, source6: AsyncIterable<T6>): Promise<[T, T2, T3, T4, T5, T6] | undefined>;
export declare function forkJoinProto<T>(this: AsyncIterableX<T>, ...sources: AsyncIterable<T>[]): Promise<T[] | undefined>;
declare module '../../asynciterable/asynciterablex' {
    interface AsyncIterableX<T> {
        forkJoin: typeof forkJoinProto;
    }
}