declare function diff( text1: string, text2: string, cursorPos?: number | diff.CursorInfo ): diff.Diff[]; declare namespace diff { type Diff = [-1 | 0 | 1, string]; const DELETE: -1; const INSERT: 1; const EQUAL: 0; interface CursorInfo { oldRange: { index: number; length: number }; newRange: { index: number; length: number }; } } export = diff;