{"success":true,"mode":"line","lines":{"a":2,"b":3},"counts":{"equal":1,"insert":2,"delete":1},"changes":[{"type":"equal","text":"Line one","lineA":1,"lineB":1},{"type":"insert","text":"Line 2","lineA":null,"lineB":2},{"type":"insert","text":"Extra line","lineA":null,"lineB":3},{"type":"delete","text":"Line two","lineA":2,"lineB":null}]}