docs: static void addParameterChild(Element node, String name, String value) {
          if (node != null) {
              Document doc = node.getOwnerDocument();
              Element parm = doc.createElement(Constants.ELM_PARAMETER);
              parm.setAttribute(Constants.ATT_NAME, name);
              parm.setAttribute(Constants.ATT_VALUE, value);
              /*
               * Set the override attribute to 'yes'. This isn't persisted since
               * this is determined upon loading the layout based upon the
               * channel definition. But for code that references this in-memory
               * value like ChannelStaticData it needs to be set.
               */
              parm.setAttribute(Constants.ATT_OVERRIDE, Constants.CAN_OVERRIDE);
              node.appendChild(parm);
          }
      }