<PackageReference Include="Microsoft.Packaging.Tools" Version="1.0.0-preview2-25401-01" />

System.Reflection.Metadata.EventDefinitionHandleCollection

namespace System.Reflection.Metadata { public struct EventDefinitionHandleCollection : IReadOnlyCollection<EventDefinitionHandle>, IEnumerable<EventDefinitionHandle>, IEnumerable { public struct Enumerator : IEnumerator<EventDefinitionHandle>, IEnumerator, IDisposable { public EventDefinitionHandle Current { get; } public bool MoveNext(); } public int Count { get; } public Enumerator GetEnumerator(); } }