export declare const map: <A, B>(as: AsyncIterable<A>, f: (a: A) => B) => AsyncIterableIterator<B>;
export declare const filter: <A>(p: (a: A) => boolean, as: AsyncIterable<A>) => AsyncIterableIterator<A>;
export declare const reduce: <A, B>(f: (a: A, b: B) => A, init: A, bs: AsyncIterable<B>) => Promise<A>;