title: Drupal 8 and Twig get language
body: <p>i want to get the actual language which is chosen on a drupal 8 site in a node and start an if-request when e.g. the language is "en" to put out some content.</p>
  
  <p>this is what i've already tried:</p>
  
  <pre><code>{% global language %}
  {% set lang_name = language %}
  {{ lang_name }}
  </code></pre>
  
  <p>and </p>
  
  <pre><code>{{ app.session.locale }}
  {{ app.request.locale }}
  </code></pre>
  
  <p>but it doesnt work. 
  can someone give me a hint how i can get the language via twig on drupal 8 or is this not possible at all?</p>