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