docs: public void setBrand(final String brand) {
          if (brand == null && this.brand == null) {
              return;
          } else if (brand == null) {
              removeChild(this.brand);
              this.brand = null;
          } else if (this.brand == null) {
              this.brand = new KeyValueNode<String>(CommonConstants.CS_BRAND_TITLE, brand);
              appendChild(this.brand, false);
          } else {
              this.brand.setValue(brand);
          }
      }