code: public static HtmlTree SECTION(Content body) {
          HtmlTree htmltree = new HtmlTree(HtmlTag.SECTION, nullCheck(body));
          htmltree.setRole(Role.REGION);
          return htmltree;
      }
docs: Generates a SECTION tag with role attribute and some content.
  
  @param body content of the section tag
  @return an HtmlTree object for the SECTION tag