go - How to get a map or list of template 'actions' from a parsed template?

Question

So I would like to somehow get all of my {{ .blahblah }} actions defined in a template as slice of strings.

For example if I have this template:

<h1>{{ .name }} {{ .age }}</h1>

I would like to be able to get []string{"name", "age"}. Pretend that a template has the method func (t *Template) Fields() []string:

t := template.New("cooltemplate").Parse(`<h1>{{ .name }} {{ .age }}</h1>`)
if t.Fields() == []string{"name", "age"} {
    fmt.Println("Yay, now I know what fields I can pass in!")
    // Now lets pass in the name field that we just discovered.
    _ = t.Execute(os.Stdout, map[string]string{"name": "Jack", "age":"120"})
}

Is there a way to inspect a parsed template like this?
Thanks!

Answer 1

Waitting for answers