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