import { AsyncIterableX } from '../asynciterablex';
import { MonoTypeOperatorAsyncFunction } from '../../interfaces';
export declare class FlattenAsyncIterable<TSource> extends AsyncIterableX<TSource> {
    private _source;
    private _depth;
    constructor(source: AsyncIterable<TSource>, depth: number);
    private _flatten;
    [Symbol.asyncIterator](): AsyncIterator<TSource, any, undefined>;
}
export declare function flat<T>(depth?: number): MonoTypeOperatorAsyncFunction<T>;