docs: protected static List<String> getHeadIncludes(I_CmsFormatterBean formatter, String type) {
  
          if (TYPE_CSS.equals(type)) {
              return Lists.newArrayList(formatter.getCssHeadIncludes());
          } else if (TYPE_JAVASCRIPT.equals(type)) {
              return formatter.getJavascriptHeadIncludes();
          }
          return null;
      }