in JetBrains.Profiler.SelfApi/src/CommonConfigHelpers.cs [31:39]
private static T DoNotUseApi<T>(this T config)
where T : CommonConfig
{
if (config.Pid == null)
throw new InvalidOperationException("DoNotUseApi is available only when ProfileCustomProcess was specified.");
config.DoNotUseApi = true;
return config;
}