import Diff from './base';
import { CallbackOption, ChangeObject, DiffCallback, DiffCssOptions } from '../types';
declare class CssDiff extends Diff<string, string> {
    protected tokenize(value: string): string[];
}
export declare const cssDiff: CssDiff;
export declare function diffCss(oldStr: string, newStr: string, options: (DiffCssOptions & CallbackOption<string>) | DiffCallback<string>): undefined;
export declare function diffCss(oldStr: string, newStr: string, options: DiffCssOptions): ChangeObject<string>[];
export {};