ASP.NET 5 MVC（Visual Studio 2015）：名为Inject的关键字

我刚刚安装了Visual Studio 2015，并围绕ASP.NET 5模板（MVC）进行了播放inject，并且在视图中看到了一个名为的关键字。是否用于依赖项注入，如果是，它将如何工作？假设下面的代码：

[Authorize]
public class AccountController : Controller
{
    private readonly UserManager<ApplicationUser> _userManager;
    private readonly SignInManager<ApplicationUser> _signInManager;
    private readonly IEmailSender _emailSender;
    private readonly ISmsSender _smsSender;
    private readonly ApplicationDbContext _applicationDbContext;
    private static bool _databaseChecked;

    public AccountController(
        UserManager<ApplicationUser> userManager,
        SignInManager<ApplicationUser> signInManager,
        IEmailSender emailSender,
        ISmsSender smsSender,
        ApplicationDbContext applicationDbContext)
    {
        _userManager = userManager;
        _signInManager = signInManager;
        _emailSender = emailSender;
        _smsSender = smsSender;
        _applicationDbContext = applicationDbContext;
    }

    //
    // GET: /Account/Login
    [HttpGet]
    [AllowAnonymous]
    public IActionResult Login(string returnUrl = null)
    {
        ViewData["ReturnUrl"] = returnUrl;
        return View();
    }
  ...
  }

登录视图具有一个注入关键字，例如：

@model LoginViewModel
@inject SignInManager<ApplicationUser> SignInManager

@{
   ViewData["Title"] = "Log in";

 }

但是，我在其他视图中看不到这一点，并且在应用程序中没有Ninject或Unity的痕迹。这是什么？一个新的惊人功能？