namespace System
{
    [DefaultMember("Item")]
    public readonly struct ArraySegment<T> : ICollection<T>, IEnumerable, IEnumerable<T>, IList<T>, IReadOnlyCollection<T>, IReadOnlyList<T>
    {
        public struct Enumerator : IEnumerator, IEnumerator<T>, IDisposable
        {
            public bool MoveNext();
        }
    }
}