public void AddContact()
{
var personDto = new PersonDto
{
FirstName = "Test",
LastName = "User",
PhoneNumber = "111 222 333",
EmailAddress = "*****@*****.**"
};
var person = apiService.AddPerson(personDto);
Console.Write(person.Names != null ? person.Names[0].DisplayName + " " : "n/a ");
Console.Write(person.EmailAddresses.FirstOrDefault()?.Value ?? "n/a" + " ");
Console.WriteLine(person.PhoneNumbers?.FirstOrDefault()?.Value ?? "n/a");
}