public void DescriptorForAllComparatorKeys()
{
var keys = CNContact.GetDescriptorForAllComparatorKeys();
// while most input for ICNKeyDescriptor are done with NSString
// the output is opaque and an internal type
// note: this is not very robust - but I want to know if this changes during the next betas
Assert.True(keys.Description.StartsWith("<CNAggregateKeyDescriptor:", StringComparison.Ordinal), "type");
Assert.True(keys.Description.Contains("kind=Formatter style: 1002"), "kind");
}