Core data Array and Conforming to NSSecureCoding

Hello,

Ive been getting an error trying to store this type of array in my core data [CNLabeledValue<CNPhoneNumber>]

Code Block 
[general] 'NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release

There are lost of posts on this error but I can't get mine to work with an array of phone numbers stored in core data. Please help if you can.

I copied this Apple Project nearly exactly https://developer.apple.com/documentation/coredata/handling_different_data_types_in_core_data
except where they have tintColor as the transformable attribute in their .xcdatamodel file, I have put phoneNumbers and the type transformable, the same as the Apple project and the transformer ColorToDataTransformer I made a copy of theirs but changed the occurrences of UIColor to [CNLabeledValue<CNPhoneNumber>]

It didn't work.

Here is the PhoneNumbersToDataTransformer I made

Code Block 
/*
See LICENSE folder for this sample’s licensing information.
Abstract:
A tranformer class that transforms NSData to UIColor and vice versa.
*/
import UIKit
import Contacts
class PhoneNumbersToDataTransformer: NSSecureUnarchiveFromDataTransformer {
		
		override class func allowsReverseTransformation() -> Bool {
				return true
		}
		
		override class func transformedValueClass() -> AnyClass {
				return CNLabeledValue<CNPhoneNumber>.self
		}
		
		override class var allowedTopLevelClasses: [AnyClass] {
				return [CNLabeledValue<CNPhoneNumber>.self]
		}
		override func transformedValue(_ value: Any?) -> Any? {
				guard let data = value as? Data else {
						fatalError("Wrong data type: value must be a Data object; received \(type(of: value))")
				}
				return super.transformedValue(data)
		}
		
		override func reverseTransformedValue(_ value: Any?) -> Any? {
				guard let phone = value as? CNLabeledValue<CNPhoneNumber> else {
						fatalError("Wrong data type. Received \(type(of: value))")
				}
				return super.reverseTransformedValue(phone)
		}
}
extension NSValueTransformerName {
		static let phoneNumbersToDataTransformer = NSValueTransformerName(rawValue: "PhoneNumbersToDataTransformer")
}

I tried changing allowedTopLevelClasses to

Code Block 
override class var allowedTopLevelClasses: [AnyClass] {
				return [CNLabeledValue<CNPhoneNumber>.self,NSArray.self]
		}

and a few other iterations of the same code. Ive been changing things for age trying to get it to work.

The error is always something like this:

[/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Contacts.framework]\"\n)}'.\"
UserInfo={NSDebugDescription=value for key '_value' was of unexpected
class 'CNPhoneNumber (0x1ca088050)
[/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Contacts.framework]'.
Allowed classes are '{(\n \"NSArray (0x1c9d1ab28)
[/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/CoreFoundation.framework]\",\n
\"CNLabeledValue (0x1ca082010)
[/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Contacts.framework]\"\n)}'.}";
} FETCH error

[1]: https://developer.apple.com/documentation/coredata/handling_different_data_types_in_core_data

Code Block 
class PhoneNumbersToDataTransformer: NSSecureUnarchiveFromDataTransformer {
    
    override class func allowsReverseTransformation() -> Bool {
        return true
    }
    
    override class func transformedValueClass() -> AnyClass {
        return NSArray.self //<-
    }
    
    override class var allowedTopLevelClasses: [AnyClass] {
        return [CNLabeledValue<CNPhoneNumber>.self, NSArray.self, CNPhoneNumber.self] //<-
    }
    override func transformedValue(_ value: Any?) -> Any? {
        guard let data = value as? Data else {
            fatalError("Wrong data type: value must be a Data object; received \(type(of: value))")
        }
        return super.transformedValue(data)
    }
    
    override func reverseTransformedValue(_ value: Any?) -> Any? {
        guard let phone = value as? [CNLabeledValue<CNPhoneNumber>] else {
            fatalError("Wrong data type. Received \(type(of: value))")
        }
        return super.reverseTransformedValue(phone)
    }
}