export interface StreamMap<T, U> {
    Map(s: T, idx: number): U | Promise<U>;
    readonly Close?: () => void;
}
export declare function streamMap<T, U>(s: ReadableStream<T>, sm: StreamMap<T, U>): ReadableStream<U>;
export declare function devnull<T>(a: ReadableStream<T>): Promise<number>;
export declare function array2stream<T>(a: T[]): ReadableStream<T>;
export declare function stream2array<T>(a: ReadableStream<T>): Promise<T[]>;
export declare function coerceStreamUint8(stream: ReadableStream<Uint8Array | string>, encoder?: (x: unknown) => Uint8Array<ArrayBuffer>): ReadableStream<Uint8Array>;
export declare function coerceStreamString(stream: ReadableStream<Uint8Array | string>, decode?: (x: unknown) => string): ReadableStream<string>;
//# sourceMappingURL=stream-map.d.ts.map