如何访问IHostingStartup实现中的配置？

// Startup.cs
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.Configure<MyOptions>(Configuration);
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        // ...
    }
}

// MyOptions.cs
public class MyOptions
{
    public string Option1 { get; set; }
    public int Option2 { get; set; }
}

// MyHostingStartup.cs
public class MyHostingStartup : IHostingStartup
{
    private readonly IConfiguration _configuration;

    public MyHostingStartup(IConfiguration configuration)
    {
        _configuration = configuration;
    }

    public void Configure(IWebHostBuilder builder)
    {
        var option1Value = _configuration.GetValue<string>("MyOptions:Option1");
        var option2Value = _configuration.GetValue<int>("MyOptions:Option2");

        // 使用获取到的配置值进行相应的操作
    }
}