code: @SuppressWarnings("unchecked")
      public <T extends WebLocatorAbstractBuilder> T setRoot(final String root) {
          pathBuilder.setRoot(root);
          return (T) this;
      }
docs: <p><b>Used for finding element process (to generate xpath address)</b></p>
  
  @param root If the path starts with // then all elements in the document which fulfill following criteria are selected. eg. // or /
  @param <T>  the element which calls this method
  @return this element