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