import { CallbackOption, ChangeObject, DiffCallback, DiffJsonOptions } from '../types';
export declare function diffJson(oldStr: string, newStr: string, options: (DiffJsonOptions & CallbackOption<string>) | DiffCallback<string>): undefined;
export declare function diffJson(oldStr: string, newStr: string, options: DiffJsonOptions): ChangeObject<string>[];
export declare function canonicalize(obj: any, stack: Array<any> | null, replacementStack: Array<any> | null, replacer: (string: any, any: any) => any, key?: string): any;