namespace System.Reflection.Metadata { public struct GenericParameterConstraintHandleCollection : IReadOnlyList<GenericParameterConstraintHandle>, IReadOnlyCollection<GenericParameterConstraintHandle>, IEnumerable<GenericParameterConstraintHandle>, IEnumerable { public struct Enumerator : IEnumerator<GenericParameterConstraintHandle>, IEnumerator, IDisposable { public GenericParameterConstraintHandle Current { get; } public bool MoveNext(); } public int Count { get; } public GenericParameterConstraintHandle this[int index] { get; } public Enumerator GetEnumerator(); } }