<PackageReference Include="Microsoft.CSharp" Version="4.7.0" />

Microsoft.CSharp.RuntimeBinder.BinderHelper

static class BinderHelper
namespace Microsoft.CSharp.RuntimeBinder { internal static class BinderHelper { public static void ValidateBindArgument(DynamicMetaObject argument, string paramName); public static void ValidateBindArgument(DynamicMetaObject[] arguments, string paramName); } }