code: @Override
      public void processOtherContent(Wrapper<Content> content) {
          if (processFirstOtherContent) {
              builder.append(baseIndent).append("otherContentList=").append("\n");
              processFirstOtherContent = false;
          }
          builder.append(content.toString(baseIndent)).append("\n");
      }
docs: Add each 'other element' to string