namespace Foundation
{
    [DefaultMember("Item")]
    [Register("NSMutableOrderedSet", true)]
    public class NSMutableOrderedSet : NSOrderedSet
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("exchangeObjectAtIndex:withObjectAtIndex:")]
        public virtual void ExchangeObject(nint first, nint second);
    }
}