To register a specific type of data like songModel in Hive in Flutter

Question

I have developed a music player using Flutter and I'm attempting to save a list of songs (SongModel) from the just_audio package into Hive. However, I'm encountering this error: "HiveError (HiveError: Cannot write, unknown type: SongModel. Did you forget to register an adapter?)" Can anyone help me resolve this issue?

Model:

import 'package:hive_flutter/hive_flutter.dart';
 import 'package:on_audio_query/on_audio_query.dart';
 part 'added_songs.g.dart';

 @HiveType(typeId: 3)
 class AddedSongs {
 @HiveField(4)
 List<SongModel> songs;

 AddedSongs(this.songs);
 }

Main class:

void main() async {
   await Hive.initFlutter();
   Hive.registerAdapter(AddedSongsAdapter());
   await Hive.openBox<AddedSongs>('AddedSongBox');
   runApp(const MyApp());
 }