title: Are new Charts Service features added recently?
body: <p>I mentioned that the GAS Chart Service contains a few methods which are not described in the <a href="https://developers.google.com/apps-script/class_charts" rel="nofollow">Documentation</a>. Does anyone know which purpose do they have? Where is possible to find documentation for them? The methods are</p>
  
  <ul>
  <li><code>Charts.newDashboardPanel()</code></li>
  <li><code>Charts.newDataViewDefinition()</code></li>
  <li><code>Charts.newCategoryFilter()</code></li>
  <li><code>Charts.newNumberRangeFilter()</code></li>
  <li><code>Charts.newStringFilter()</code></li>
  </ul>