namespace Windows.ApplicationModel.Contacts
{
    [SupportedOSPlatform("Windows10.0.14393.0")]
    public sealed class ContactListSyncConstraints : ?
    {
        [EditorBrowsable(EditorBrowsableState.Never)]
        [Obsolete("This type or method is a private implementation detail, and it's only meant to be consumed by generated projections (produced by 'cswinrt.exe') and by generated interop code (produced by 'cswinrtinteropgen.exe'). Private implementation detail types are not considered part of the versioned API surface, and they are ignored when determining the assembly version following semantic versioning. Types might be modified or removed across any version change for 'WinRT.Runtime.dll', and using them in user code is undefined behavior and not supported.", DiagnosticId = "CSWINRT3001", UrlFormat = "https://aka.ms/cswinrt/errors/{0}")]
        protected override bool IsOverridableInterface(in Guid iid);
    }
}