How to reflect not managed properties of NSManagedObject

I am searching how to get not managed property names and types of a NSManagedObject subclass.

here is few sample code to help me to ask my question :

@objc(Account)
public class Account: NSManagedObject {

    @NSManaged var bic: String
    @NSManaged var number: String

    @NSManaged var operations: Set<Operation>
    @NSManaged var servicesSubscriptions: Set<ServiceSubcription>

    // and more.
}

extension Account
{

public var title : String {
    get
    {
        return (self.bic + " " + self.number)
    }
    set(value) 
    {   // do parsing stuf, and 
        self.bic = parse[0];self.number = parse[1]
    }
  }
}

I have found many ways to get property names using reflect() function. reflect() do not work with NSManagedObject at all. (like this simple one)

I have found examples with class_copyPropertyList function, which do not work at all with NSManagedObject. (I bet it is used internally in reflect function)

I have found many ways to get Attributes (or relations) of managed objects using NSEntityDescription. (like this one). Which work and get back bic and number, but not title.

So my question is : How to get back my title property, and its type, dynamically at run time ?

Thank you for any help