code: public Query setPinnedRefinements(String navigationName, String... values) {
      Navigation navigation = navigations.get(navigationName);
      if (navigation == null) {
        navigation = new Navigation().setName(navigationName);
        navigations.put(navigationName, navigation);
      }
      navigation.setPinnedRefinements(asList(values));
      return this;
    }
docs: <code>
  Add pinned value refinement.  Takes a refinement name and a set of values.
  </code>
  
  @param navigationName
  The name of the navigation
  @param values
  The refinement values
  
  @return