import { AnyIterable } from 'augmentative-iterable';
export declare const orderAssured: unique symbol;
export declare const isOrderAssured: (f: Function, it?: AnyIterable<any>) => boolean;
export declare const isDescendingOrderAssured: (f: Function, it?: AnyIterable<any>) => boolean;
export declare function isAnyOrderAssured(f: Function, it?: AnyIterable<any>): boolean;
export declare function keepOrderAssuring<T>(it: T, reference: any): T;