code: @XmlElementDecl(namespace = "http://www.w3.org/1998/Math/MathML", name = "curl")
      public JAXBElement<CurlType> createCurl(CurlType value) {
          return new JAXBElement<CurlType>(_Curl_QNAME, CurlType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link CurlType }{@code >}}