import Diff from './base';
import { CallbackOption, ChangeObject, DiffCallback, DiffLinesOptions } from '../types';
declare class LineDiff extends Diff<string, string> {
    tokenize(value: string, options: DiffLinesOptions): any[];
    protected equals(left: string, right: string, options: DiffLinesOptions): boolean;
}
export declare const lineDiff: LineDiff;
export declare function diffLines(oldStr: string, newStr: string, options: (DiffLinesOptions & CallbackOption<string>) | DiffCallback<string>): undefined;
export declare function diffLines(oldStr: string, newStr: string, options: DiffLinesOptions): ChangeObject<string>[];
export declare function diffTrimmedLines(oldStr: string, newStr: string, options: (DiffLinesOptions & CallbackOption<string>) | DiffCallback<string>): undefined;
export declare function diffTrimmedLines(oldStr: string, newStr: string, options: DiffLinesOptions): ChangeObject<string>[];
export {};