import { MonoTypeOperatorAsyncFunction } from '../../interfaces';
export declare function orderBy<TKey, TSource>(keySelector: (item: TSource) => TKey, comparer?: (fst: TKey, snd: TKey) => number): MonoTypeOperatorAsyncFunction<TSource>;
export declare function orderByDescending<TKey, TSource>(keySelector: (item: TSource) => TKey, comparer?: (fst: TKey, snd: TKey) => number): MonoTypeOperatorAsyncFunction<TSource>;
export declare function thenBy<TKey, TSource>(keySelector: (item: TSource) => TKey, comparer?: (fst: TKey, snd: TKey) => number): MonoTypeOperatorAsyncFunction<TSource>;
export declare function thenByDescending<TKey, TSource>(keySelector: (item: TSource) => TKey, comparer?: (fst: TKey, snd: TKey) => number): MonoTypeOperatorAsyncFunction<TSource>;