namespace Contacts
{
    [Introduced(PlatformName.iOS, 9, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.MacOSX, 10, 11, PlatformArchitecture.All, null)]
    public static class CNGroup_PredicatesExtension
    {
        [Obsolete("This API is only available on macOS 10.11+.")]
        public static NSPredicate GetPredicateForSubgroupsInGroup(CNGroup This, string parentGroupIdentifier);
    }
}