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