import Nymph from './Nymph.js';
import { Selector } from './Nymph.types.js';
export declare function xor(a: any, b: any): boolean;
export declare function uniqueStrings(array: string[]): string[];
export declare function classNamesToEntityConstructors(nymph: Nymph, selectors: Selector[], enforceRestEnabledFlag?: boolean): Selector[];
export declare function entitiesToReferences(item: any, existingOnly?: boolean): any;
export declare function referencesToEntities(item: any, nymph: Nymph, useSkipAc?: boolean): any;
export declare function sortObj<T extends {
    [k: string]: any;
}>(obj: T): T;