namespace System.Reflection.Metadata { public struct GuidHandle : IEquatable<GuidHandle> { public bool IsNil { get; } public static implicit operator Handle(GuidHandle handle); public static explicit operator GuidHandle(Handle handle); public bool Equals(GuidHandle other); public static bool operator ==(GuidHandle left, GuidHandle right); public static bool operator !=(GuidHandle left, GuidHandle right); } }