class NotificationChannelPreference { final String channelKey; final String channelName; final bool isMandatory; final bool enabled; const NotificationChannelPreference({ required this.channelKey, required this.channelName, required this.isMandatory, required this.enabled, }); factory NotificationChannelPreference.fromJson(Map json) { return NotificationChannelPreference( channelKey: json['channelKey'] as String? ?? '', channelName: json['channelName'] as String? ?? json['channelKey'] as String? ?? '', isMandatory: json['isMandatory'] as bool? ?? false, enabled: json['enabled'] as bool? ?? true, ); } NotificationChannelPreference copyWith({bool? enabled}) { return NotificationChannelPreference( channelKey: channelKey, channelName: channelName, isMandatory: isMandatory, enabled: enabled ?? this.enabled, ); } }