toMap method
Implementation
Map<String, Object?> toMap() => <String, Object?>{
'id': id,
'name': name,
if (description != null) 'description': description,
if (imageUrl != null) 'imageUrl': imageUrl,
if (actionUrl != null) 'actionUrl': actionUrl,
if (createdAt != null) 'createdAt': createdAt,
if (materialId != null) 'materialId': materialId,
if (trait != null && !trait!.isEmpty) 'trait': trait!.toMap(),
};