Protocol for Realm Objects that I want to sync with CloudKit

CloudKitSyncable.swift

protocol CloudKitSyncable {    
    var id: String { get }
    var recordID: CKRecordID { get }
    var synced: Date? { get }
    var modified: Date { get }
    var deleted: Date? { get }
    var record: CKRecord { get }
    var recordChangeTag: String? { get }
    var recordOwnerName: String? { get }
}

final class RealmObject: Object {
    // All your object specific properties
    //
  
    // CloudKitSyncable
    dynamic var id: String = UUID().uuidString
    dynamic var synced: Date? = nil
    dynamic var modified: Date = Date()
    dynamic var deleted: Date? = nil
    dynamic var recordChangeTag: String? = nil
    dynamic var recordOwnerName: String? = CKOwnerDefaultName
}