code: @XmlElementDecl(namespace = "http://www.citygml.org/ade/sub/0.9.0", name = "Tunnel", substitutionHeadNamespace = "http://www.citygml.org/ade/sub/0.9.0", substitutionHeadName = "_AbstractTunnel")
      public JAXBElement<TunnelType> createTunnel(TunnelType value) {
          return new JAXBElement<TunnelType>(_Tunnel_QNAME, TunnelType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link TunnelType }{@code >}}