toJson method
Implementation
@override
Map<String, dynamic> toJson() => <String, dynamic>{
'gift': gift?.toJson(),
'received_gift_id': receivedGiftId,
'is_saved': isSaved,
'can_be_transferred': canBeTransferred,
'transfer_star_count': transferStarCount,
'drop_original_details_star_count': dropOriginalDetailsStarCount,
'next_transfer_date': nextTransferDate,
'next_resale_date': nextResaleDate,
'export_date': exportDate,
'@type': constructor,
};