import Nymph from './Nymph.js';
export declare function uniqueStrings(array: string[]): string[];
export declare function entityConstructorsToClassNames(item: any): any;
export declare function entitiesToReferences(item: any): any;
export declare function referencesToEntities(item: any, nymph: Nymph): any;
export declare function sortObj<T extends {
    [k: string]: any;
}>(obj: T): T;