code: @XmlElementDecl(namespace = "http://www.w3.org/2001/XMLSchema", name = "attribute")
      public JAXBElement<TopLevelAttribute> createAttribute(TopLevelAttribute value) {
          return new JAXBElement<TopLevelAttribute>(_Attribute_QNAME, TopLevelAttribute.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link TopLevelAttribute }{@code >}}