namespace System.Collections.Immutable
{
    [DebuggerDisplay("{DebuggerDisplay,nq}")]
    [DefaultMember("Item")]
    public readonly struct ImmutableArray<T> : ICollection<T>, IEnumerable<T>, IList<T>, IReadOnlyCollection<T>, IReadOnlyList<T>, ICollection, IEnumerable, IList, IImmutableList<T>, IStructuralComparable, IStructuralEquatable, IEquatable<ImmutableArray<T>>
    {
        [DebuggerDisplay("Count = {Count}")]
        [DebuggerTypeProxy(typeof(ImmutableArrayBuilderDebuggerProxy<?>))]
        [DefaultMember("Item")]
        public sealed class Builder : ICollection<T>, IEnumerable<T>, IList<T>, IReadOnlyCollection<T>, IReadOnlyList<T>, IEnumerable
        {
            public void AddRange(T[]! items, int length);
        }
    }
}