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