public void Setup()
    {
        var code =
            @"using System;

record Record;
";

        benchmark.Initialize(code, LanguageVersion.Latest);
    }
    public void Setup()
    {
        var code =
            @"using System;

record Record();

class Class
{
	void Method(Record instance)
	{
		_ = instance is null;
		_ = instance is not null;
		_ = (object)instance != null;
	}
}";

        benchmark.Initialize(code, LanguageVersion.Latest);
    }