import Stream from './Stream';
import Tuple from './Tuple';
declare type NewReceiverFunc = () => Stream;
export declare function combineStreams(output: Stream): NewReceiverFunc;
export declare function joinNStreams(count: number, joinedOutput: Stream): any[];
export declare function joinNStreams_v2(count: number, joinedOutput: Stream): Stream;
export declare function streamPostFilter(stream: Stream, filter: (t: Tuple) => boolean): {
    next(t: Tuple): void;
    done(): void;
};
export declare function streamPostModify(stream: Stream, callback: (t: Tuple) => Tuple | null): {
    next(t: Tuple): void;
    done(): void;
};
export declare function streamPostRemoveAttr(stream: Stream, attr: string): {
    next(t: Tuple): void;
    done(): void;
};
export {};