import { GroupedAsyncEnumerable } from "./GroupedAsyncEnumerable";
import { AsyncEnumerable } from "./AsyncEnumerable";
export declare class GroupByAsyncEnumerable<T, K> extends AsyncEnumerable<GroupedAsyncEnumerable<T, K>> {
    readonly parent: AsyncEnumerable<T>;
    readonly keySelector: (item: T) => K | PromiseLike<K>;
    constructor(parent: AsyncEnumerable<T>, keySelector: (item: T) => K | PromiseLike<K>);
    isResultComplete: boolean;
    protected generator(): AsyncIterableIterator<GroupedAsyncEnumerable<T, K>>;
}