import { ReadableStream } from 'ts-stream';
export declare type Sink<T> = (s: ReadableStream<T>) => Promise<void>;
declare module './stream' {
    interface Stream<T> {
        chunk(size: number): ReadableStream<Array<T>>;
        sink(sink: Sink<T>): Promise<void>;
    }
    interface ReadableStream<T> {
        chunk(size: number): ReadableStream<Array<T>>;
        sink(sink: Sink<T>): Promise<void>;
    }
}