import { AsyncIterableX } from './asynciterablex';
export declare class ConcatAllAsyncIterable<TSource> extends AsyncIterableX<TSource> {
    private _source;
    constructor(source: AsyncIterable<AsyncIterable<TSource>>);
    [Symbol.asyncIterator](): AsyncIterableIterator<TSource>;
}
export declare function concatAll<TSource>(source: AsyncIterable<AsyncIterable<TSource>>): AsyncIterableX<TSource>;