Reading programming phoenix with phoenix 1.6

Hello people

I began reading programming phoenix which is for phoenix 1.4 but Im using phoenix 1.6.
I found in chapter 3

At this point, it’s worth emphasizing that a view in Phoenix is just a module, and templates are just functions.
Chris McCord, Bruce Tate, José Valim. Programming Phoenix ≥ 1.4 (Kindle Locations 1846-1847).

​iex> ​ view = 
RumblWeb.UserView.render(​ " ​​ user.html" ​, ​ user: ​ user) ​ {:safe, [[[[["" | "<strong>"] | "José"] | "</strong> ("] | "1"] | ")\n"]} ​ ​ ​ 

iex> ​ Phoenix.HTML.safe_to_string(view) ​ "<strong>José</strong> (1)\n" 

but when I execute this in 1.6 i get

iex(2)> view = RumblWeb.UserView.render("user.html", user: user)
%Phoenix.LiveView.Rendered{
  dynamic: #Function<2.48691599/1 in RumblWeb.UserView."user.html"/1>,
  fingerprint: 180091408340993206255584356524086951088,
  root: false,
  static: ["\n<b> ", " </b> (", ")\n"]
}

I see I can do view.dynamic.("foo") and I get the ["jose", "1"]

But I im just lost… whats going on now? and is there a way to do Phoenix.HTML.safe_to_string in 1.6?

thanks