如何注入对IHubContext for.NET核心HostBuilder的引用？

<ItemGroup>
  <PackageReference Include="Microsoft.AspNetCore.SignalR" Version="5.0.0" />
</ItemGroup>

using Microsoft.AspNetCore.SignalR;

public void ConfigureServices(IServiceCollection services)
{
    // 其他服务的配置...

    services.AddSignalR();
    services.AddSingleton<IUserIdProvider, CustomUserIdProvider>(); // 如果需要自定义用户ID提供程序，可以添加此行
}

using Microsoft.AspNetCore.SignalR;

public class MyController : Controller
{
    private readonly IHubContext<MyHub> _hubContext;

    public MyController(IHubContext<MyHub> hubContext)
    {
        _hubContext = hubContext;
    }

    // 其他操作...
}