import * as sync from "./iterator";
export declare type AsyncEntry<T> = sync.Entry<T>;
export declare type AsyncIterableEx<T> = {
    readonly fold: <A>(func: (a: A, b: T, i: number) => Promise<A> | A, init: A) => Promise<A>;
    readonly toArray: () => Promise<readonly T[]>;
    readonly entries: () => AsyncIterableEx<AsyncEntry<T>>;
    readonly map: <R>(func: (v: T, i: number) => Promise<R> | R) => AsyncIterableEx<R>;
    readonly flatMap: <R>(func: (v: T, i: number) => AsyncIterable<R>) => AsyncIterableEx<R>;
    readonly filter: (func: (v: T, i: number) => Promise<boolean> | boolean) => AsyncIterableEx<T>;
} & AsyncIterable<T>;
export declare const asyncIterable: <T>(createIterator: () => AsyncIterator<T, any, undefined>) => AsyncIterableEx<T>;
export declare const asyncFromSync: <T>(input: Iterable<T>) => AsyncIterableEx<T>;
export declare const asyncFromSequence: <T>(...a: readonly T[]) => AsyncIterableEx<T>;
export declare const asyncFromPromise: <T>(p: Promise<Iterable<T>>) => AsyncIterableEx<T>;
export declare const asyncFold: <T, A>(input: AsyncIterable<T> | undefined, func: (a: A, b: T, i: number) => A | Promise<A>, init: A) => Promise<A>;
export declare const asyncToArray: <T>(input: AsyncIterable<T> | undefined) => Promise<readonly T[]>;
export declare const asyncEntries: <T>(input: AsyncIterable<T> | undefined) => AsyncIterableEx<sync.Entry<T>>;
export declare const asyncMap: <T, I>(input: AsyncIterable<I> | undefined, func: (v: I, i: number) => T | Promise<T>) => AsyncIterableEx<T>;
export declare const asyncFlatten: <T>(input: AsyncIterable<AsyncIterable<T> | undefined> | undefined) => AsyncIterableEx<T>;
export declare const asyncFlatMap: <T, I>(input: AsyncIterable<I> | undefined, func: (v: I, i: number) => AsyncIterable<T> | undefined) => AsyncIterableEx<T>;
export declare const asyncEmpty: <T>() => AsyncIterableEx<T>;
export declare const asyncFilter: <T>(input: AsyncIterable<T> | undefined, func: (v: T, i: number) => Promise<boolean> | boolean) => AsyncIterableEx<T>;
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