title: How to check if widget is a checkbox in twig
body: <p>Im theming my forms i want dont show the label if the field is a checkbox</p>
  
  <pre><code>{% form_theme form with _self %}
  
  {% block form_row %}
      {% spaceless %}
          &lt;div class="mygroup"&gt;
              {{form_label(form)}} # hide if checkbox
              {{form_errors(form)}}
              {{form_widget(form)}}
          &lt;/div&gt;
      {% endspaceless %}
  {% endblock %}
  </code></pre>