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