namespace System
{
    [DebuggerDisplay(null)]
    [DebuggerDisplay(null)]
    [DebuggerTypeProxy(typeof(SpanDebugView<?>))]
    [DebuggerTypeProxy(typeof(SpanDebugView<?>))]
    [DefaultMember(null)]
    [Obsolete(null, null)]
    public sealed class ReadOnlySpan<T> : ValueType
    {
        [Obsolete(null, null)]
        public sealed class Enumerator : ValueType
        {
            public ? MoveNext();
        }
    }
}