Go의 템플릿 범위 루프 내에서 URL 매개변수에 액세스하는 방법은 무엇입니까?

type User struct {
    Username string
    Password []byte
    Email string
}

func main() {
    users := []User{
        {Username: "Alice", Email: "alice@example.com"},
        {Username: "Bob", Email: "bob@example.com"},
    }

    renderer.HTML(w, http.StatusOK, "users/index", map[string]interface{}{
        "lang":  chi.URLParam(r, "lang"),
        "users": users,
    })
}

{{ range .users }}
  <form action="/{{ .lang }}/users" method="POST">
    <input type="text" name="Username" value="{{ .Username }}">
    <input type="text" name="Email" value="{{ .Email }}">
  </form>
{{ end }}

{{ range .users }}
  <form action="/{{ $.lang }}/users" method="POST">
    <input type="text" name="Username" value="{{ .Username }}">
    <input type="text" name="Email" value="{{ .Email }}">
  </form>
{{ end }}