I am trying to amend a contact in my IOS app but get type error Value of type '[CNContact]' has no member 'familyName'
let updateContact = try contactStore.unifiedContacts(matching: predicate,keysToFetch: toFetch as [CNKeyDescriptor])
updateContact.familyName.append(CNLabeledValue(label: CNLabelWork, value: contact["2"]!))
Clearly i have the wrong type for updateContact but can't figure where I have gone wrong