namespace Foundation
{
    [Register("NSMutableSet", true)]
    public class NSMutableSet : NSSet, IEnumerable, IEnumerable<NSObject>
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [DesignatedInitializer]
        [Export("initWithCapacity:")]
        public NSMutableSet(nint capacity);
    }
}