toJson method
Implementation
@override
Map<String, Object?> toJson() => {
if (delivery != null) "delivery": encodeValue(delivery),
if (access != null) "access": encodeValue(access),
if (createdBy != null) "created_by": encodeValue(createdBy),
if (customData != null) "custom_data": encodeValue(customData),
if (expiresAt != null) "expires_at": encodeValue(expiresAt),
"file_id": encodeValue(fileId),
};