namespace FileProvider
{
    [Introduced(PlatformName.iOS, 11, 0, PlatformArchitecture.All, null)]
    [Introduced(PlatformName.MacOSX, 10, 15, PlatformArchitecture.All, null)]
    [Protocol(Name = "NSFileProviderEnumerator", WrapperType = typeof(NSFileProviderEnumeratorWrapper))]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "Invalidate", Selector = "invalidate")]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "EnumerateItems", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(INSFileProviderEnumerationObserver), typeof(NSData) }, Selector = "enumerateItemsForObserver:startingAtPage:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "EnumerateChanges", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(INSFileProviderChangeObserver), typeof(NSData) }, Selector = "enumerateChangesForObserver:fromSyncAnchor:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "CurrentSyncAnchor", ParameterBlockProxy = new[] { typeof(NIDActionArity1V28) }, ParameterByRef = new[] { false }, ParameterType = new[] { typeof(Action<NSData>) }, Selector = "currentSyncAnchorWithCompletionHandler:")]
    public interface INSFileProviderEnumerator : INativeObject, IDisposable
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("invalidate")]
        [Preserve(Conditional = true)]
        void Invalidate();
    }
}