code: @XmlElementDecl(namespace = "http://www.opengis.net/citygml/tunnel/2.0", name = "TunnelPart", substitutionHeadNamespace = "http://www.opengis.net/citygml/tunnel/2.0", substitutionHeadName = "_AbstractTunnel")
      public JAXBElement<TunnelPartType> createTunnelPart(TunnelPartType value) {
          return new JAXBElement<TunnelPartType>(_TunnelPart_QNAME, TunnelPartType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link TunnelPartType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link TunnelPartType }{@code >}