class JLPTRankedWord { final List readings; final String? kanji; final String jlptLevel; final List meanings; const JLPTRankedWord({ required this.readings, this.kanji, required this.jlptLevel, required this.meanings, }); @override String toString() => '($jlptLevel,$kanji,"${readings.join(",")}","${meanings.join(",")})'; }