<PackageReference Include="Castle.Core" Version="4.2.1" />

Castle.DynamicProxy.Internal.InternalsUtil

public static class InternalsUtil
namespace Castle.DynamicProxy.Internal { public static class InternalsUtil { public static bool IsInternal(this MethodBase method); public static bool IsInternalToDynamicProxy(this Assembly asm); public static bool IsAccessible(this MethodBase method); } }