import { CACHE_CHECKS_SET, ENTITY_STATE, FEATURE_SELECTOR, ID_SELECTOR, STORE_SELECTOR, UNKNOWN } from './types';
export declare function normalizeSelector<S, E>(selector: FEATURE_SELECTOR<S, E>): {
    collection: STORE_SELECTOR<S, ENTITY_STATE<E>>;
    id: ID_SELECTOR<E>;
};
export declare function verifyCache<S>(state: S, checks: CACHE_CHECKS_SET<S>): boolean;
export declare function mergeCache<S>(from: CACHE_CHECKS_SET<S> | undefined, to: CACHE_CHECKS_SET<S>): void;
export declare function argsToArray<T>(args: {
    length: number;
} & {
    [key: number]: T;
}): Array<T>;
export declare function isObject(value: UNKNOWN): value is object;
export declare function objectKeys<T extends object, K extends keyof T>(value: T): Array<K>;
export declare function objectValues<T extends object, K extends T[keyof T]>(value: T): Array<K>;
export declare function mapEntries<K, T>(set: Map<K, T>): Array<[K, T]>;
export declare const mapValues: <T>(set: {
    forEach(a1: (value: T) => void): void;
}) => T[];