code: func (t *TemplateManager) RenderFromString(w io.Writer, tplSrc string, data interface{}) error {
  	stack := []*Template{}
  	t.push(&stack, tplSrc, "_fromString")
  	tpl, err := t.assemble(stack)
  	if err != nil {
  		return err
  	}
  
  	err = tpl.Execute(w, data)
  	if err != nil {
  		return err
  	}
  
  	return nil
  }
docs: // RenderFromString renders a template from string.