在ASP.NET 3.1中，Identity Server4中的ApiResources配置位于何处？

public void ConfigureServices(IServiceCollection services)
{
    // Other configurations...
    
    services.AddIdentityServer()
        .AddApiResources(config =>
        {
            config.AddApiResource("api1", "My API");
            // Add more api resources if needed
        });

    // Other configurations...
}